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2e3c1d1a01
Typo immbediate -> immediate ##docs
3719 lines
102 KiB
C
3719 lines
102 KiB
C
/* radare - LGPL - Copyright 2010-2019 - pancake */
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#include <sdb/ht_uu.h>
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#include "r_core.h"
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#include <r_hash.h>
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#include "r_io.h"
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#include "r_list.h"
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#include "r_types_base.h"
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#include "cmd_search_rop.c"
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static int cmd_search(void *data, const char *input);
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#define USE_EMULATION 0
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static const char *help_msg_slash[] = {
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"Usage:", "/[!bf] [arg]", "Search stuff (see 'e??search' for options)\n"
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"|Use io.va for searching in non virtual addressing spaces",
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"/", " foo\\x00", "search for string 'foo\\0'",
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"/j", " foo\\x00", "search for string 'foo\\0' (json output)",
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"/!", " ff", "search for first occurrence not matching, command modifier",
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"/!x", " 00", "inverse hexa search (find first byte != 0x00)",
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"/+", " /bin/sh", "construct the string with chunks",
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"//", "", "repeat last search",
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"/a", " jmp eax", "assemble opcode and search its bytes",
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"/a1", " 3", "find all the valid instructions that can be generated by changing the nth byte",
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"/b", "", "search backwards, command modifier, followed by other command",
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"/B", "", "search recognized RBin headers",
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"/c", " jmp [esp]", "search for asm code matching the given string",
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"/ce", "[j] rsp,rbp", "search for esil expressions matching",
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"/ci", "[j] 0x300", "find all the instructions using that immediate",
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"/C", "[ar]", "search for crypto materials",
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"/d", " 101112", "search for a deltified sequence of bytes",
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"/e", " /E.F/i", "match regular expression",
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"/E", " esil-expr", "offset matching given esil expressions %%= here",
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"/f", "", "search forwards, (command modifier)",
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"/F", " file [off] [sz]", "search contents of file with offset and size",
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// TODO: add subcommands to find paths between functions and filter only function names instead of offsets, etc
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"/g", "[g] [from]", "find all graph paths A to B (/gg follow jumps, see search.count and anal.depth)",
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"/h", "[t] [hash] [len]", "find block matching this hash. See ph",
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"/i", " foo", "search for string 'foo' ignoring case",
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"/m", " magicfile", "search for matching magic file (use blocksize)",
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"/M", " ", "search for known filesystems and mount them automatically",
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"/o", " [n]", "show offset of n instructions backward",
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"/O", " [n]", "same as /o, but with a different fallback if anal cannot be used",
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"/p", " patternsize", "search for pattern of given size",
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"/P", " patternsize", "search similar blocks",
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"/s", "[*] [threshold]", "find sections by grouping blocks with similar entropy",
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"/r[erwx]", "[?] sym.printf", "analyze opcode reference an offset (/re for esil)",
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"/R", " [grepopcode]", "search for matching ROP gadgets, semicolon-separated",
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// moved into /as "/s", "", "search for all syscalls in a region (EXPERIMENTAL)",
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"/v", "[1248] value", "look for an `cfg.bigendian` 32bit value",
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"/V", "[1248] min max", "look for an `cfg.bigendian` 32bit value in range",
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"/w", " foo", "search for wide string 'f\\0o\\0o\\0'",
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"/wi", " foo", "search for wide string ignoring case 'f\\0o\\0o\\0'",
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"/x", " ff..33", "search for hex string ignoring some nibbles",
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"/x", " ff0033", "search for hex string",
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"/x", " ff43:ffd0", "search for hexpair with mask",
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"/z", " min max", "search for strings of given size",
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#if 0
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"\nConfiguration:", "", " (type `e??search.` for a complete list)",
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"e", " cmd.hit = x", "command to execute on every search hit",
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"e", " search.in = ?", "specify where to search stuff (depends on .from/.to)",
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"e", " search.align = 4", "only catch aligned search hits",
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"e", " search.from = 0", "start address",
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"e", " search.to = 0", "end address",
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"e", " search.flags = true", "if enabled store flags on keyword hits",
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#endif
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NULL
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};
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static const char *help_msg_slash_c[] = {
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"Usage:", "/c [inst]", " Search for code",
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"/c ", "instr", "search for instruction 'instr'",
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"/ca ", "instr", "search for instruction 'instr' (in all offsets)",
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"/ce ", "esil", "search for esil expressions matching substring",
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"/ci", "[j] 0x300", "find all the instructions using that immediate",
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"/c/ ", "instr", "search for instruction that matches regexp 'instr'",
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"/c/a ", "instr", "search for every byte instruction that matches regexp 'instr'",
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"/c ", "instr1;instr2", "search for instruction 'instr1' followed by 'instr2'",
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"/c/ ", "instr1;instr2", "search for regex instruction 'instr1' followed by regex 'instr2'",
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"/cj ", "instr", "json output",
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"/c/j ", "instr", "regex search with json output",
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"/c* ", "instr", "r2 command output",
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NULL
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};
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static const char *help_msg_slash_a[] = {
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"Usage:", "/a[stf][?ljq] [instr | op.type | op.family]", "Search for assembly",
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"/a", "instr", "assemble given instruction and search the bytes",
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"/ai", "", "Search for infinite loop instructions (jmp $$)",
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"/at", " type", "Search for instructions of given type",
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"/af", " family", "Search for instruction of specific family",
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"/as", "", "Search for syscalls (See /at swi and /af priv)",
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"/al", "", "Same as aoml, list all opcodes",
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"/asl", "", "Same as asl, list all syscalls",
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"/atl", "", "List all instruction types",
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"/afl", "", "List all instruction families",
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NULL
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};
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static const char *help_msg_slash_C[] = {
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"Usage: /C", "", "Search for crypto materials",
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"/Ca", "", "Search for AES keys expanded in memory",
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"/Cc", "[algo] [digest]", "Find collisions (bruteforce block length values until given checksum is found)",
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"/Cd", "", "Search for ASN1/DER certificates",
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"/Cr", "", "Search for private RSA keys",
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NULL
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};
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static const char *help_msg_slash_r[] = {
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"Usage:", "/r[acerwx] [address]", " search references to this specific address",
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"/r", " [addr]", "search references to this specific address",
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"/ra", "", "search all references",
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"/rc", "", "search for call references",
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"/re", " [addr]", "search references using esil",
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"/rr", "", "Find read references",
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"/rw", "", "Find write references",
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"/rx", "", "Find exec references",
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NULL
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};
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static const char *help_msg_slash_R[] = {
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"Usage: /R", "", "Search for ROP gadgets",
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"/R", " [filter-by-string]", "Show gadgets",
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"/R/", " [filter-by-regexp]", "Show gadgets [regular expression]",
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"/Rq", " [filter-by-string]", "Show gadgets in a quiet manner",
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"/R/q", " [filter-by-regexp]", "Show gadgets in a quiet manner [regular expression]",
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"/Rj", " [filter-by-string]", "JSON output",
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"/R/j", " [filter-by-regexp]", "JSON output [regular expression]",
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"/Rk", " [select-by-class]", "Query stored ROP gadgets",
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NULL
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};
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static const char *help_msg_slash_Rk[] = {
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"Usage: /Rk", "", "Query stored ROP gadgets",
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"/Rk", " [nop|mov|const|arithm|arithm_ct]", "Show gadgets",
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"/Rkj", "", "JSON output",
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"/Rkq", "", "List Gadgets offsets",
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NULL
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};
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static const char *help_msg_slash_x[] = {
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"Usage:", "/x [hexpairs]:[binmask]", "Search in memory",
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"/x ", "9090cd80", "search for those bytes",
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"/x ", "9090cd80:ffff7ff0", "search with binary mask",
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NULL
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};
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static int preludecnt = 0;
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static int searchflags = 0;
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static int searchshow = 0;
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static bool json = false;
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static const char *cmdhit = NULL;
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static const char *searchprefix = NULL;
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struct search_parameters {
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RCore *core;
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RList *boundaries;
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const char *mode;
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const char *cmd_hit;
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bool inverse;
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bool crypto_search;
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bool aes_search;
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bool rsa_search;
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};
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struct endlist_pair {
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int instr_offset;
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int delay_size;
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};
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static void cmd_search_init(RCore *core) {
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DEFINE_CMD_DESCRIPTOR_SPECIAL (core, /, slash);
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DEFINE_CMD_DESCRIPTOR_SPECIAL (core, /c, slash_c);
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DEFINE_CMD_DESCRIPTOR_SPECIAL (core, /C, slash_C);
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DEFINE_CMD_DESCRIPTOR_SPECIAL (core, /r, slash_r);
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DEFINE_CMD_DESCRIPTOR_SPECIAL (core, /R, slash_R);
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DEFINE_CMD_DESCRIPTOR_SPECIAL (core, /Rk, slash_Rk);
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DEFINE_CMD_DESCRIPTOR_SPECIAL (core, /x, slash_x);
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}
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static int search_hash(RCore *core, const char *hashname, const char *hashstr, ut32 minlen, ut32 maxlen, struct search_parameters *param) {
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RIOMap *map;
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ut8 *buf;
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int i, j;
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RListIter *iter;
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if (!minlen || minlen == UT32_MAX) {
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minlen = core->blocksize;
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}
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if (!maxlen || maxlen == UT32_MAX) {
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maxlen = minlen;
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}
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r_cons_break_push (NULL, NULL);
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for (j = minlen; j <= maxlen; j++) {
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ut32 len = j;
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eprintf ("Searching %s for %d byte length.\n", hashname, j);
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r_list_foreach (param->boundaries, iter, map) {
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if (r_cons_is_breaked ()) {
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break;
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}
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ut64 from = map->itv.addr, to = r_itv_end (map->itv);
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st64 bufsz;
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bufsz = to - from;
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if (len > bufsz) {
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eprintf ("Hash length is bigger than range 0x%"PFMT64x "\n", from);
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continue;
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}
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buf = malloc (bufsz);
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if (!buf) {
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eprintf ("Cannot allocate %"PFMT64d " bytes\n", bufsz);
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goto hell;
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}
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eprintf ("Search in range 0x%08"PFMT64x " and 0x%08"PFMT64x "\n", from, to);
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int blocks = (int) (to - from - len);
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eprintf ("Carving %d blocks...\n", blocks);
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(void) r_io_read_at (core->io, from, buf, bufsz);
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for (i = 0; (from + i + len) < to; i++) {
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if (r_cons_is_breaked ()) {
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break;
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}
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char *s = r_hash_to_string (NULL, hashname, buf + i, len);
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if (!(i % 5)) {
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eprintf ("%d\r", i);
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}
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if (!s) {
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eprintf ("Hash fail\n");
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break;
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}
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// eprintf ("0x%08"PFMT64x" %s\n", from+i, s);
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if (!strcmp (s, hashstr)) {
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eprintf ("Found at 0x%"PFMT64x "\n", from + i);
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r_cons_printf ("f hash.%s.%s = 0x%"PFMT64x "\n",
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hashname, hashstr, from + i);
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free (s);
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free (buf);
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return 1;
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}
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free (s);
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}
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free (buf);
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}
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}
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r_cons_break_pop ();
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eprintf ("No hashes found\n");
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return 0;
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hell:
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return -1;
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}
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static void cmd_search_bin(RCore *core, RInterval itv) {
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RBinPlugin *plug;
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ut8 buf[1024];
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ut64 from = itv.addr, to = r_itv_end (itv);
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int size, sz = sizeof (buf);
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r_cons_break_push (NULL, NULL);
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while (from < to) {
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if (r_cons_is_breaked ()) {
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break;
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}
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r_io_read_at (core->io, from, buf, sz);
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plug = r_bin_get_binplugin_by_bytes (core->bin, buf, sz);
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if (plug) {
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r_cons_printf ("0x%08" PFMT64x " %s\n", from, plug->name);
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if (plug->size) {
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RBinOptions opt = {
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.pluginname = plug->name,
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.offset = core->offset,
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.baseaddr = 0,
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.loadaddr = 0,
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.sz = 4096,
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.xtr_idx = 0,
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.rawstr = core->bin->rawstr,
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.fd = core->file->fd,
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};
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r_bin_open_io (core->bin, &opt);
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size = plug->size (core->bin->cur);
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if (size > 0) {
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r_cons_printf ("size %d\n", size);
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}
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}
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}
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from++;
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}
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r_cons_break_pop ();
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}
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static int __prelude_cb_hit(RSearchKeyword *kw, void *user, ut64 addr) {
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RCore *core = (RCore *) user;
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int depth = r_config_get_i (core->config, "anal.depth");
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// eprintf ("ap: Found function prelude %d at 0x%08"PFMT64x"\n", preludecnt, addr);
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r_core_anal_fcn (core, addr, -1, R_ANAL_REF_TYPE_NULL, depth);
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preludecnt++;
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return 1;
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}
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R_API int r_core_search_prelude(RCore *core, ut64 from, ut64 to, const ut8 *buf, int blen, const ut8 *mask, int mlen) {
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ut64 at;
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ut8 *b = (ut8 *) malloc (core->blocksize);
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if (!b) {
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return 0;
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}
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// TODO: handle sections ?
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if (from >= to) {
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eprintf ("aap: Invalid search range 0x%08"PFMT64x " - 0x%08"PFMT64x "\n", from, to);
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free (b);
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return 0;
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}
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r_search_reset (core->search, R_SEARCH_KEYWORD);
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r_search_kw_add (core->search, r_search_keyword_new (buf, blen, mask, mlen, NULL));
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r_search_begin (core->search);
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r_search_set_callback (core->search, &__prelude_cb_hit, core);
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preludecnt = 0;
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for (at = from; at < to; at += core->blocksize) {
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if (r_cons_is_breaked ()) {
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break;
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}
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if (!r_io_is_valid_offset (core->io, at, 0)) {
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break;
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}
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(void)r_io_read_at (core->io, at, b, core->blocksize);
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if (r_search_update (core->search, at, b, core->blocksize) == -1) {
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eprintf ("search: update read error at 0x%08"PFMT64x "\n", at);
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break;
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}
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}
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free (b);
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return preludecnt;
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}
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static int count_functions(RCore *core) {
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return r_list_length (core->anal->fcns);
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}
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R_API int r_core_search_preludes(RCore *core) {
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int ret = -1;
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const char *prelude = r_config_get (core->config, "anal.prelude");
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const char *arch = r_config_get (core->config, "asm.arch");
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int bits = r_config_get_i (core->config, "asm.bits");
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ut64 from = UT64_MAX;
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ut64 to = UT64_MAX;
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const char *where = r_config_get (core->config, "anal.in");
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RList *list = r_core_get_boundaries_prot (core, R_PERM_X, where, "search");
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RListIter *iter;
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RIOMap *p;
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if (!list) {
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return -1;
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}
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int fc0 = count_functions (core);
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r_list_foreach (list, iter, p) {
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eprintf ("\r[>] Scanning %s 0x%"PFMT64x " - 0x%"PFMT64x " ",
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r_str_rwx_i (p->perm), p->itv.addr, r_itv_end (p->itv));
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if (!(p->perm & R_PERM_X)) {
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eprintf ("skip\n");
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continue;
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}
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from = p->itv.addr;
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to = r_itv_end (p->itv);
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if (prelude && *prelude) {
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ut8 *kw = malloc (strlen (prelude) + 1);
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int kwlen = r_hex_str2bin (prelude, kw);
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ret = r_core_search_prelude (core, from, to, kw, kwlen, NULL, 0);
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free (kw);
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} else if (strstr (arch, "ppc")) {
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ret = r_core_search_prelude (core, from, to,
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(const ut8 *) "\x7c\x08\x02\xa6", 4, NULL, 0);
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} else if (strstr (arch, "arm")) {
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switch (bits) {
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case 16:
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r_core_search_prelude (core, from, to,
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(const ut8 *) "\x00\xb5", 2, (const ut8*)"\x0f\xff", 2);
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ret = r_core_search_prelude (core, from, to,
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(const ut8 *) "\x08\xb5", 2, (const ut8*)"\x0f\xff", 2);
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break;
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case 32:
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ret = r_core_search_prelude (core, from, to,
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(const ut8 *) "\x00\x00\x2d\xe9", 4,
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(const ut8 *) "\x0f\x0f\xff\xff", 4);
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break;
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case 64:
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r_core_search_prelude (core, from, to, (const ut8 *) "\xf0\x00\x00\xd1", 4, (const ut8*)"\xf0\x00\x00\xff", 4);
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r_core_search_prelude (core, from, to, (const ut8 *) "\xf0\x00\x00\xa9", 4, (const ut8*)"\xf0\x00\x00\xff", 4);
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break;
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default:
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eprintf ("ap: Unsupported bits: %d\n", bits);
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}
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} else if (strstr (arch, "mips")) {
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ret = r_core_search_prelude (core, from, to,
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(const ut8 *) "\x27\xbd\x00", 3, NULL, 0);
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} else if (strstr (arch, "x86")) {
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switch (bits) {
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case 32:
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r_core_search_prelude (core, from, to, // mov edi, edi;push ebp; mov ebp,esp
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(const ut8 *) "\x8b\xff\x55\x8b\xec", 5, NULL, 0);
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r_core_search_prelude (core, from, to,
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(const ut8 *) "\x55\x89\xe5", 3, NULL, 0);
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r_core_search_prelude (core, from, to, // push ebp; mov ebp, esp
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(const ut8 *) "\x55\x8b\xec", 3, NULL, 0);
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break;
|
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case 64:
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r_core_search_prelude (core, from, to,
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(const ut8 *) "\x55\x48\x89\xe5", 4, NULL, 0);
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r_core_search_prelude (core, from, to,
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(const ut8 *) "\x55\x48\x8b\xec", 4, NULL, 0);
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break;
|
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default:
|
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eprintf ("ap: Unsupported bits: %d\n", bits);
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}
|
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} else {
|
||
eprintf ("ap: Unsupported asm.arch and asm.bits\n");
|
||
}
|
||
eprintf ("done\n");
|
||
}
|
||
int fc1 = count_functions (core);
|
||
if (list) {
|
||
eprintf ("Analyzed %d functions based on preludes\n", fc1 - fc0);
|
||
} else {
|
||
eprintf ("No executable section found, cannot analyze anything. Use 'S' to change or define permissions of sections\n");
|
||
}
|
||
r_list_free (list);
|
||
return ret;
|
||
}
|
||
|
||
/* TODO: maybe move into util/str */
|
||
static char *getstring(char *b, int l) {
|
||
char *r, *res = malloc (l + 1);
|
||
int i;
|
||
if (!res) {
|
||
return NULL;
|
||
}
|
||
for (i = 0, r = res; i < l; b++, i++) {
|
||
if (IS_PRINTABLE (*b)) {
|
||
*r++ = *b;
|
||
}
|
||
}
|
||
*r = 0;
|
||
return res;
|
||
}
|
||
|
||
static int _cb_hit(RSearchKeyword *kw, void *user, ut64 addr) {
|
||
struct search_parameters *param = user;
|
||
RCore *core = param->core;
|
||
const RSearch *search = core->search;
|
||
ut64 base_addr = 0;
|
||
bool use_color = core->print->flags & R_PRINT_FLAGS_COLOR;
|
||
int keyword_len = kw ? kw->keyword_length + (search->mode == R_SEARCH_DELTAKEY) : 0;
|
||
|
||
if (searchshow && kw && kw->keyword_length > 0) {
|
||
int len, i, extra, mallocsize;
|
||
char *s = NULL, *str = NULL, *p = NULL;
|
||
extra = (json)? 3: 1;
|
||
const char *type = "hexpair";
|
||
bool escaped = false;
|
||
ut8 *buf = malloc (keyword_len);
|
||
if (!buf) {
|
||
return 0;
|
||
}
|
||
switch (kw->type) {
|
||
case R_SEARCH_KEYWORD_TYPE_STRING:
|
||
{
|
||
const int ctx = 16;
|
||
const int prectx = addr > 16 ? ctx : addr;
|
||
char *pre, *pos, *wrd;
|
||
const int len = keyword_len;
|
||
char *buf = calloc (1, len + 32 + ctx * 2);
|
||
type = "string";
|
||
r_io_read_at (core->io, addr - prectx, (ut8 *) buf, len + (ctx * 2));
|
||
pre = getstring (buf, prectx);
|
||
wrd = r_str_utf16_encode (buf + prectx, len);
|
||
pos = getstring (buf + prectx + len, ctx);
|
||
if (!pos) {
|
||
pos = strdup ("");
|
||
}
|
||
free (buf);
|
||
if (json) {
|
||
char *pre_esc = r_str_escape (pre);
|
||
char *pos_esc = r_str_escape (pos);
|
||
s = r_str_newf ("%s%s%s", pre_esc, wrd, pos_esc);
|
||
escaped = true;
|
||
free (pre_esc);
|
||
free (pos_esc);
|
||
} else if (use_color) {
|
||
s = r_str_newf (".%s"Color_YELLOW "%s"Color_RESET "%s.", pre, wrd, pos);
|
||
} else {
|
||
// s = r_str_newf ("\"%s"Color_INVERT"%s"Color_RESET"%s\"", pre, wrd, pos);
|
||
s = r_str_newf ("\"%s%s%s\"", pre, wrd, pos);
|
||
}
|
||
free (pre);
|
||
free (wrd);
|
||
free (pos);
|
||
}
|
||
free (p);
|
||
break;
|
||
default:
|
||
len = keyword_len; // 8 byte context
|
||
mallocsize = (len * 2) + extra;
|
||
str = (len > 0xffff)? NULL: malloc (mallocsize);
|
||
if (str) {
|
||
p = str;
|
||
memset (str, 0, len);
|
||
r_io_read_at (core->io, base_addr + addr, buf, keyword_len);
|
||
if (json) {
|
||
p = str;
|
||
}
|
||
const int bytes = (len > 40)? 40: len;
|
||
for (i = 0; i < bytes; i++) {
|
||
sprintf (p, "%02x", buf[i]);
|
||
p += 2;
|
||
}
|
||
if (bytes != len) {
|
||
strcpy (p, "...");
|
||
p += 3;
|
||
}
|
||
*p = 0;
|
||
} else {
|
||
eprintf ("Cannot allocate %d\n", mallocsize);
|
||
}
|
||
s = str;
|
||
str = NULL;
|
||
break;
|
||
}
|
||
|
||
if (json) {
|
||
if (core->search->nhits >= 1) {
|
||
r_cons_printf (",");
|
||
}
|
||
char *es = escaped ? s : r_str_escape (s);
|
||
r_cons_printf ("{\"offset\":%"PFMT64d ",\"type\":\"%s\",\"data\":\"%s\"}",
|
||
base_addr + addr, type, es);
|
||
if (!escaped) {
|
||
free (es);
|
||
}
|
||
} else {
|
||
r_cons_printf ("0x%08"PFMT64x " %s%d_%d %s\n",
|
||
base_addr + addr, searchprefix, kw->kwidx, kw->count, s);
|
||
}
|
||
free (s);
|
||
free (buf);
|
||
free (str);
|
||
} else if (kw) {
|
||
if (json) {
|
||
if (core->search->nhits >= 1) {
|
||
r_cons_printf (",");
|
||
}
|
||
r_cons_printf ("{\"offset\": %"PFMT64d ",\"len\":%d}",
|
||
base_addr + addr, kw->kwidx, keyword_len);
|
||
} else {
|
||
if (searchflags) {
|
||
r_cons_printf ("%s%d_%d\n", searchprefix, kw->kwidx, kw->count);
|
||
} else {
|
||
r_cons_printf ("f %s%d_%d %d 0x%08"PFMT64x "\n", searchprefix,
|
||
kw->kwidx, kw->count, keyword_len, base_addr + addr);
|
||
}
|
||
}
|
||
}
|
||
if (searchflags && kw) {
|
||
const char *flag = sdb_fmt ("%s%d_%d", searchprefix, kw->kwidx, kw->count);
|
||
r_flag_set (core->flags, flag, base_addr + addr, keyword_len);
|
||
}
|
||
if (*param->cmd_hit) {
|
||
ut64 here = core->offset;
|
||
r_core_seek (core, base_addr + addr, true);
|
||
r_core_cmd (core, param->cmd_hit, 0);
|
||
r_core_seek (core, here, true);
|
||
}
|
||
return true;
|
||
}
|
||
|
||
static int c = 0;
|
||
|
||
static inline void print_search_progress(ut64 at, ut64 to, int n) {
|
||
if ((++c % 64) || (json)) {
|
||
return;
|
||
}
|
||
if (r_cons_singleton ()->columns < 50) {
|
||
eprintf ("\r[ ] 0x%08"PFMT64x " hits = %d \r%s",
|
||
at, n, (c % 2)? "[ #]": "[# ]");
|
||
} else {
|
||
eprintf ("\r[ ] 0x%08"PFMT64x " < 0x%08"PFMT64x " hits = %d \r%s",
|
||
at, to, n, (c % 2)? "[ #]": "[# ]");
|
||
}
|
||
}
|
||
|
||
static void append_bound(RList *list, RIO *io, RInterval search_itv, ut64 from, ut64 size, int perms) {
|
||
RIOMap *map = R_NEW0 (RIOMap);
|
||
if (!map) {
|
||
return;
|
||
}
|
||
if (io && io->desc) {
|
||
map->fd = r_io_fd_get_current (io);
|
||
}
|
||
map->perm = perms;
|
||
RInterval itv = {from, size};
|
||
// TODO UT64_MAX is a valid address. search.from and search.to are not specified
|
||
if (search_itv.addr == UT64_MAX && !search_itv.size) {
|
||
map->itv = itv;
|
||
r_list_append (list, map);
|
||
} else if (r_itv_overlap (itv, search_itv)) {
|
||
map->itv = r_itv_intersect (itv, search_itv);
|
||
if (map->itv.size) {
|
||
r_list_append (list, map);
|
||
} else {
|
||
free (map);
|
||
}
|
||
} else {
|
||
free (map);
|
||
}
|
||
}
|
||
|
||
static bool maskMatches(int perm, int mask, bool only) {
|
||
if (mask) {
|
||
if (only) {
|
||
return ((perm & 7) != mask);
|
||
}
|
||
return (perm & mask) != mask;
|
||
}
|
||
return false;
|
||
}
|
||
|
||
// TODO(maskray) returns RList<RInterval>
|
||
R_API RList *r_core_get_boundaries_prot(RCore *core, int perm, const char *mode, const char *prefix) {
|
||
r_return_val_if_fail (core, NULL);
|
||
|
||
RList *list = r_list_newf (free); // XXX r_io_map_free);
|
||
if (!list) {
|
||
return NULL;
|
||
}
|
||
|
||
char bound_in[32];
|
||
char bound_from[32];
|
||
char bound_to[32];
|
||
snprintf (bound_in, sizeof (bound_in), "%s.%s", prefix, "in");
|
||
snprintf (bound_from, sizeof (bound_from), "%s.%s", prefix, "from");
|
||
snprintf (bound_to, sizeof (bound_to), "%s.%s", prefix, "to");
|
||
const ut64 search_from = r_config_get_i (core->config, bound_from),
|
||
search_to = r_config_get_i (core->config, bound_to);
|
||
const RInterval search_itv = {search_from, search_to - search_from};
|
||
if (!mode) {
|
||
mode = r_config_get (core->config, bound_in);
|
||
}
|
||
if (perm == -1) {
|
||
perm = R_PERM_RWX;
|
||
}
|
||
if (!r_config_get_i (core->config, "cfg.debug") && !core->io->va) {
|
||
append_bound (list, core->io, search_itv, 0, r_io_size (core->io), 7);
|
||
} else if (!strcmp (mode, "block")) {
|
||
append_bound (list, core->io, search_itv, core->offset, core->blocksize, 7);
|
||
} else if (!strcmp (mode, "io.map")) {
|
||
RIOMap *m = r_io_map_get (core->io, core->offset);
|
||
if (m) {
|
||
append_bound (list, core->io, search_itv, m->itv.addr, m->itv.size, m->perm);
|
||
}
|
||
} else if (!strcmp (mode, "io.maps")) { // Non-overlapping RIOMap parts not overriden by others (skyline)
|
||
ut64 begin = UT64_MAX;
|
||
ut64 end = UT64_MAX;
|
||
#define USE_SKYLINE 0
|
||
#if USE_SKYLINE
|
||
const RPVector *skyline = &core->io->map_skyline;
|
||
size_t i;
|
||
for (i = 0; i < r_pvector_len (skyline); i++) {
|
||
const RIOMapSkyline *part = r_pvector_at (skyline, i);
|
||
// int perm = part->map->perm;
|
||
ut64 from = r_itv_begin (part->itv);
|
||
ut64 to = r_itv_end (part->itv);
|
||
// XXX skyline's fake map perms are wrong
|
||
RIOMap *m = r_io_map_get (core->io, from);
|
||
int rwx = m? m->perm: part->map->perm;
|
||
#else
|
||
RIOMap *map;
|
||
SdbListIter *iter;
|
||
ls_foreach (core->io->maps, iter, map) {
|
||
ut64 from = r_itv_begin (map->itv);
|
||
ut64 to = r_itv_end (map->itv);
|
||
int rwx = map->perm;
|
||
#endif
|
||
// eprintf ("--------- %llx %llx (%llx %llx)\n", from, to, begin, end);
|
||
if (begin == UT64_MAX) {
|
||
begin = from;
|
||
}
|
||
if (end == UT64_MAX) {
|
||
end = to;
|
||
} else {
|
||
if (end == from) {
|
||
end = to;
|
||
} else {
|
||
append_bound (list, NULL, search_itv,
|
||
begin, end - begin, rwx);
|
||
begin = from;
|
||
end = to;
|
||
}
|
||
}
|
||
}
|
||
if (end != UT64_MAX) {
|
||
append_bound (list, NULL, search_itv, begin, end - begin, 7);
|
||
}
|
||
} else if (r_str_startswith (mode, "io.maps.")) {
|
||
int len = strlen ("io.maps.");
|
||
int mask = (mode[len - 1] == '.')? r_str_rwx (mode + len): 0;
|
||
bool only = (bool)(size_t)strstr (mode, ".only");
|
||
|
||
RBinObject *obj = r_bin_cur_object (core->bin);
|
||
if (obj) {
|
||
RBinSection *s;
|
||
RListIter *iter;
|
||
r_list_foreach (obj->sections, iter, s) {
|
||
if (maskMatches (s->perm, mask, only)) {
|
||
continue;
|
||
}
|
||
ut64 addr = core->io->va? s->vaddr: s->paddr;
|
||
ut64 size = core->io->va? s->vsize: s->size;
|
||
append_bound (list, core->io, search_itv, addr, size, s->perm);
|
||
}
|
||
}
|
||
const RPVector *skyline = &core->io->map_skyline;
|
||
ut64 begin = UT64_MAX;
|
||
ut64 end = UT64_MAX;
|
||
size_t i;
|
||
for (i = 0; i < r_pvector_len (skyline); i++) {
|
||
const RIOMapSkyline *part = r_pvector_at (skyline, i);
|
||
ut64 from = part->itv.addr;
|
||
ut64 to = part->itv.addr + part->itv.size;
|
||
int perm = part->map->perm;
|
||
if (maskMatches (perm, mask, only)) {
|
||
continue;
|
||
}
|
||
// eprintf ("--------- %llx %llx (%llx %llx)\n", from, to, begin, end);
|
||
if (begin == UT64_MAX) {
|
||
begin = from;
|
||
}
|
||
if (end == UT64_MAX) {
|
||
end = to;
|
||
} else {
|
||
if (end == from) {
|
||
end = to;
|
||
} else {
|
||
// eprintf ("[%llx - %llx]\n", begin, end);
|
||
append_bound (list, NULL, search_itv, begin, end - begin, perm);
|
||
begin = from;
|
||
end = to;
|
||
}
|
||
}
|
||
}
|
||
if (end != UT64_MAX) {
|
||
append_bound (list, NULL, search_itv, begin, end - begin, 7);
|
||
}
|
||
} else if (r_str_startswith (mode, "bin.sections")) {
|
||
int len = strlen ("bin.sections.");
|
||
int mask = (mode[len - 1] == '.')? r_str_rwx (mode + len): 0;
|
||
bool only = (bool)(size_t)strstr (mode, ".only");
|
||
RBinObject *obj = r_bin_cur_object (core->bin);
|
||
if (obj) {
|
||
RBinSection *s;
|
||
RListIter *iter;
|
||
r_list_foreach (obj->sections, iter, s) {
|
||
if (maskMatches (s->perm, mask, only)) {
|
||
continue;
|
||
}
|
||
ut64 addr = core->io->va? s->vaddr: s->paddr;
|
||
ut64 size = core->io->va? s->vsize: s->size;
|
||
append_bound (list, core->io, search_itv, addr, size, s->perm);
|
||
}
|
||
}
|
||
} else if (!strcmp (mode, "bin.section")) {
|
||
RBinObject *obj = r_bin_cur_object (core->bin);
|
||
if (obj) {
|
||
RBinSection *s;
|
||
RListIter *iter;
|
||
r_list_foreach (obj->sections, iter, s) {
|
||
ut64 addr = core->io->va? s->vaddr: s->paddr;
|
||
ut64 size = core->io->va? s->vsize: s->size;
|
||
if (R_BETWEEN (addr, core->offset, addr + size)) {
|
||
append_bound (list, core->io, search_itv, addr, size, s->perm);
|
||
}
|
||
}
|
||
}
|
||
} else if (!strcmp (mode, "anal.fcn") || !strcmp (mode, "anal.bb")) {
|
||
RAnalFunction *f = r_anal_get_fcn_in (core->anal, core->offset,
|
||
R_ANAL_FCN_TYPE_FCN | R_ANAL_FCN_TYPE_SYM);
|
||
if (f) {
|
||
ut64 from = f->addr, size = r_anal_fcn_size (f);
|
||
|
||
/* Search only inside the basic block */
|
||
if (!strcmp (mode, "anal.bb")) {
|
||
RListIter *iter;
|
||
RAnalBlock *bb;
|
||
|
||
r_list_foreach (f->bbs, iter, bb) {
|
||
ut64 at = core->offset;
|
||
if ((at >= bb->addr) && (at < (bb->addr + bb->size))) {
|
||
from = bb->addr;
|
||
size = bb->size;
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
append_bound (list, core->io, search_itv, from, size, 5);
|
||
} else {
|
||
eprintf ("WARNING: search.in = ( anal.bb | anal.fcn )"\
|
||
"requires to seek into a valid function\n");
|
||
append_bound (list, core->io, search_itv, core->offset, 1, 5);
|
||
}
|
||
} else if (!strncmp (mode, "dbg.", 4)) {
|
||
if (core->io->debug) {
|
||
int mask = 0;
|
||
int add = 0;
|
||
bool heap = false;
|
||
bool stack = false;
|
||
bool all = false;
|
||
bool first = false;
|
||
RListIter *iter;
|
||
RDebugMap *map;
|
||
|
||
r_debug_map_sync (core->dbg);
|
||
|
||
if (!strcmp (mode, "dbg.map")) {
|
||
int perm = 0;
|
||
ut64 from = core->offset;
|
||
ut64 to = core->offset;
|
||
r_list_foreach (core->dbg->maps, iter, map) {
|
||
if (from >= map->addr && from < map->addr_end) {
|
||
from = map->addr;
|
||
to = map->addr_end;
|
||
perm = map->perm;
|
||
break;
|
||
}
|
||
}
|
||
if (perm) {
|
||
RIOMap *nmap = R_NEW0 (RIOMap);
|
||
if (nmap) {
|
||
// nmap->fd = core->io->desc->fd;
|
||
nmap->itv.addr = from;
|
||
nmap->itv.size = to - from;
|
||
nmap->perm = perm;
|
||
nmap->delta = 0;
|
||
r_list_append (list, nmap);
|
||
}
|
||
}
|
||
} else {
|
||
bool only = false;
|
||
mask = 0;
|
||
if (!strcmp (mode, "dbg.program")) {
|
||
first = true;
|
||
mask = R_PERM_X;
|
||
} else if (!strcmp (mode, "dbg.maps")) {
|
||
all = true;
|
||
} else if (r_str_startswith (mode, "dbg.maps.")) {
|
||
mask = r_str_rwx (mode + 9);
|
||
only = (bool)(size_t)strstr (mode, ".only");
|
||
} else if (!strcmp (mode, "dbg.heap")) {
|
||
heap = true;
|
||
} else if (!strcmp (mode, "dbg.stack")) {
|
||
stack = true;
|
||
}
|
||
|
||
ut64 from = UT64_MAX;
|
||
ut64 to = 0;
|
||
r_list_foreach (core->dbg->maps, iter, map) {
|
||
if (!all && maskMatches (map->perm, mask, only)) {
|
||
continue;
|
||
}
|
||
add = (stack && strstr (map->name, "stack"))? 1: 0;
|
||
if (!add && (heap && (map->perm & R_PERM_W)) && strstr (map->name, "heap")) {
|
||
add = 1;
|
||
}
|
||
if ((mask && (map->perm & mask)) || add || all) {
|
||
if (!list) {
|
||
list = r_list_newf (free);
|
||
}
|
||
RIOMap *nmap = R_NEW0 (RIOMap);
|
||
if (!nmap) {
|
||
break;
|
||
}
|
||
nmap->itv.addr = map->addr;
|
||
nmap->itv.size = map->addr_end - map->addr;
|
||
if (nmap->itv.addr) {
|
||
from = R_MIN (from, nmap->itv.addr);
|
||
to = R_MAX (to - 1, r_itv_end (nmap->itv) - 1) + 1;
|
||
}
|
||
nmap->perm = map->perm;
|
||
nmap->delta = 0;
|
||
r_list_append (list, nmap);
|
||
if (first) {
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
} else {
|
||
// if (!strcmp (mode, "raw")) {
|
||
/* obey temporary seek if defined '/x 8080 @ addr:len' */
|
||
if (core->tmpseek) {
|
||
append_bound (list, core->io, search_itv, core->offset, core->blocksize, 5);
|
||
} else {
|
||
// TODO: repeat last search doesnt works for /a
|
||
ut64 from = r_config_get_i (core->config, bound_from);
|
||
if (from == UT64_MAX) {
|
||
from = core->offset;
|
||
}
|
||
ut64 to = r_config_get_i (core->config, bound_to);
|
||
if (to == UT64_MAX) {
|
||
if (core->io->va) {
|
||
/* TODO: section size? */
|
||
} else {
|
||
if (core->file) {
|
||
to = r_io_fd_size (core->io, core->file->fd);
|
||
}
|
||
}
|
||
}
|
||
append_bound (list, core->io, search_itv, from, to - from, 5);
|
||
}
|
||
}
|
||
return list;
|
||
}
|
||
|
||
static bool is_end_gadget(const RAnalOp *aop, const ut8 crop) {
|
||
switch (aop->type) {
|
||
case R_ANAL_OP_TYPE_TRAP:
|
||
case R_ANAL_OP_TYPE_RET:
|
||
case R_ANAL_OP_TYPE_UCALL:
|
||
case R_ANAL_OP_TYPE_RCALL:
|
||
case R_ANAL_OP_TYPE_ICALL:
|
||
case R_ANAL_OP_TYPE_IRCALL:
|
||
case R_ANAL_OP_TYPE_UJMP:
|
||
case R_ANAL_OP_TYPE_RJMP:
|
||
case R_ANAL_OP_TYPE_IJMP:
|
||
case R_ANAL_OP_TYPE_IRJMP:
|
||
case R_ANAL_OP_TYPE_JMP:
|
||
case R_ANAL_OP_TYPE_CALL:
|
||
return true;
|
||
}
|
||
if (crop) { // if conditional jumps, calls and returns should be used for the gadget-search too
|
||
switch (aop->type) {
|
||
case R_ANAL_OP_TYPE_CJMP:
|
||
case R_ANAL_OP_TYPE_UCJMP:
|
||
case R_ANAL_OP_TYPE_CCALL:
|
||
case R_ANAL_OP_TYPE_UCCALL:
|
||
case R_ANAL_OP_TYPE_CRET: // i'm a condret
|
||
return true;
|
||
}
|
||
}
|
||
return false;
|
||
}
|
||
|
||
static bool insert_into(void *user, const ut64 k, const ut64 v) {
|
||
HtUU *ht = (HtUU *)user;
|
||
ht_uu_insert (ht, k, v);
|
||
return true;
|
||
}
|
||
|
||
// TODO: follow unconditional jumps
|
||
static RList *construct_rop_gadget(RCore *core, ut64 addr, ut8 *buf, int idx, const char *grep, int regex, RList *rx_list, struct endlist_pair *end_gadget, HtUU *badstart) {
|
||
int endaddr = end_gadget->instr_offset;
|
||
int branch_delay = end_gadget->delay_size;
|
||
RAsmOp asmop;
|
||
const char *start = NULL, *end = NULL;
|
||
char *grep_str = NULL;
|
||
RCoreAsmHit *hit = NULL;
|
||
RList *hitlist = r_core_asm_hit_list_new ();
|
||
ut8 nb_instr = 0;
|
||
const ut8 max_instr = r_config_get_i (core->config, "rop.len");
|
||
bool valid = false;
|
||
int grep_find;
|
||
int search_hit;
|
||
char *rx = NULL;
|
||
HtUUOptions opt = { 0 };
|
||
HtUU *localbadstart = ht_uu_new_opt (&opt);
|
||
int count = 0;
|
||
|
||
if (grep) {
|
||
start = grep;
|
||
end = strstr (grep, ";");
|
||
if (!end) { // We filter on a single opcode, so no ";"
|
||
end = start + strlen (grep);
|
||
}
|
||
grep_str = calloc (1, end - start + 1);
|
||
strncpy (grep_str, start, end - start);
|
||
if (regex) {
|
||
// get the first regexp.
|
||
if (r_list_length (rx_list) > 0) {
|
||
rx = r_list_get_n (rx_list, count++);
|
||
}
|
||
}
|
||
}
|
||
|
||
bool found;
|
||
ht_uu_find (badstart, idx, &found);
|
||
if (found) {
|
||
valid = false;
|
||
goto ret;
|
||
}
|
||
int opsz = 0;
|
||
char *opst = NULL;
|
||
|
||
while (nb_instr < max_instr) {
|
||
ht_uu_insert (localbadstart, idx, 1);
|
||
r_asm_set_pc (core->assembler, addr);
|
||
if (!r_asm_disassemble (core->assembler, &asmop, buf + idx, 15)) {
|
||
goto ret;
|
||
} else {
|
||
opsz = asmop.size;
|
||
// opsz = r_strbuf_length (asmop.buf);
|
||
opst = r_asm_op_get_asm (&asmop);
|
||
}
|
||
if (!r_str_ncasecmp (opst, "invalid", strlen ("invalid")) ||
|
||
!r_str_ncasecmp (opst, ".byte", strlen (".byte"))) {
|
||
valid = false;
|
||
goto ret;
|
||
}
|
||
|
||
hit = r_core_asm_hit_new ();
|
||
hit->addr = addr;
|
||
hit->len = opsz;
|
||
r_list_append (hitlist, hit);
|
||
|
||
// Move on to the next instruction
|
||
idx += opsz;
|
||
addr += opsz;
|
||
if (rx) {
|
||
grep_find = !r_regex_match (rx, "e", opst);
|
||
search_hit = (end && grep && (grep_find < 1));
|
||
} else {
|
||
search_hit = (end && grep && strstr (opst, grep_str));
|
||
}
|
||
|
||
// Handle (possible) grep
|
||
if (search_hit) {
|
||
if (end[0] == ';') { // fields are semicolon-separated
|
||
start = end + 1; // skip the ;
|
||
end = strstr (start, ";");
|
||
end = end? end: start + strlen (start); // latest field?
|
||
free (grep_str);
|
||
grep_str = calloc (1, end - start + 1);
|
||
strncpy (grep_str, start, end - start);
|
||
} else {
|
||
end = NULL;
|
||
}
|
||
if (regex) {
|
||
rx = r_list_get_n (rx_list, count++);
|
||
}
|
||
}
|
||
|
||
if (endaddr <= (idx - opsz)) {
|
||
valid = (endaddr == idx - opsz);
|
||
goto ret;
|
||
}
|
||
nb_instr++;
|
||
}
|
||
ret:
|
||
free (grep_str);
|
||
if (regex && rx) {
|
||
r_list_free (hitlist);
|
||
ht_uu_free (localbadstart);
|
||
return NULL;
|
||
}
|
||
if (!valid || (grep && end)) {
|
||
r_list_free (hitlist);
|
||
ht_uu_free (localbadstart);
|
||
return NULL;
|
||
}
|
||
ht_uu_foreach (localbadstart, insert_into, badstart);
|
||
ht_uu_free (localbadstart);
|
||
// If our arch has bds then we better be including them
|
||
if (branch_delay && r_list_length (hitlist) < (1 + branch_delay)) {
|
||
r_list_free (hitlist);
|
||
return NULL;
|
||
}
|
||
return hitlist;
|
||
}
|
||
|
||
static void print_rop(RCore *core, RList *hitlist, char mode, bool *json_first) {
|
||
const char *otype;
|
||
RCoreAsmHit *hit = NULL;
|
||
RListIter *iter;
|
||
RList *ropList = NULL;
|
||
char *buf_asm = NULL;
|
||
unsigned int size = 0;
|
||
RAnalOp analop = R_EMPTY;
|
||
RAsmOp asmop;
|
||
Sdb *db = NULL;
|
||
const bool colorize = r_config_get_i (core->config, "scr.color");
|
||
const bool rop_comments = r_config_get_i (core->config, "rop.comments");
|
||
const bool esil = r_config_get_i (core->config, "asm.esil");
|
||
const bool rop_db = r_config_get_i (core->config, "rop.db");
|
||
|
||
if (rop_db) {
|
||
db = sdb_ns (core->sdb, "rop", true);
|
||
ropList = r_list_newf (free);
|
||
if (!db) {
|
||
eprintf ("Error: Could not create SDB 'rop' namespace\n");
|
||
r_list_free (ropList);
|
||
return;
|
||
}
|
||
}
|
||
|
||
switch (mode) {
|
||
case 'j':
|
||
// Handle comma between gadgets
|
||
if (*json_first) {
|
||
*json_first = 0;
|
||
} else {
|
||
r_cons_strcat (",");
|
||
}
|
||
r_cons_printf ("{\"opcodes\":[");
|
||
r_list_foreach (hitlist, iter, hit) {
|
||
ut8 *buf = malloc (hit->len);
|
||
r_io_read_at (core->io, hit->addr, buf, hit->len);
|
||
r_asm_set_pc (core->assembler, hit->addr);
|
||
r_asm_disassemble (core->assembler, &asmop, buf, hit->len);
|
||
r_anal_op (core->anal, &analop, hit->addr, buf, hit->len, R_ANAL_OP_MASK_ESIL);
|
||
size += hit->len;
|
||
if (analop.type != R_ANAL_OP_TYPE_RET) {
|
||
char *opstr_n = r_str_newf (" %s", R_STRBUF_SAFEGET (&analop.esil));
|
||
r_list_append (ropList, (void *) opstr_n);
|
||
}
|
||
r_cons_printf ("{\"offset\":%"PFMT64d ",\"size\":%d,"
|
||
"\"opcode\":\"%s\",\"type\":\"%s\"}%s",
|
||
hit->addr, hit->len, r_asm_op_get_asm (&asmop),
|
||
r_anal_optype_to_string (analop.type),
|
||
iter->n? ",": "");
|
||
free (buf);
|
||
}
|
||
if (db && hit) {
|
||
const ut64 addr = ((RCoreAsmHit *) hitlist->head->data)->addr;
|
||
// r_cons_printf ("Gadget size: %d\n", (int)size);
|
||
const char *key = sdb_fmt ("0x%08"PFMT64x, addr);
|
||
rop_classify (core, db, ropList, key, size);
|
||
r_cons_printf ("],\"retaddr\":%"PFMT64d ",\"size\":%d}", hit->addr, size);
|
||
} else if (hit) {
|
||
r_cons_printf ("],\"retaddr\":%"PFMT64d ",\"size\":%d}", hit->addr, size);
|
||
}
|
||
break;
|
||
case 'q':
|
||
// Print gadgets in a 'linear manner', each sequence
|
||
// on one line.
|
||
r_cons_printf ("0x%08"PFMT64x ":",
|
||
((RCoreAsmHit *) hitlist->head->data)->addr);
|
||
r_list_foreach (hitlist, iter, hit) {
|
||
ut8 *buf = malloc (hit->len);
|
||
r_io_read_at (core->io, hit->addr, buf, hit->len);
|
||
r_asm_set_pc (core->assembler, hit->addr);
|
||
r_asm_disassemble (core->assembler, &asmop, buf, hit->len);
|
||
r_anal_op (core->anal, &analop, hit->addr, buf, hit->len, R_ANAL_OP_MASK_BASIC);
|
||
size += hit->len;
|
||
const char *opstr = R_STRBUF_SAFEGET (&analop.esil);
|
||
if (analop.type != R_ANAL_OP_TYPE_RET) {
|
||
r_list_append (ropList, r_str_newf (" %s", opstr));
|
||
}
|
||
if (esil) {
|
||
r_cons_printf ("%s\n", opstr);
|
||
} else if (colorize) {
|
||
buf_asm = r_print_colorize_opcode (core->print, r_asm_op_get_asm (&asmop),
|
||
core->cons->context->pal.reg, core->cons->context->pal.num, false, 0);
|
||
r_cons_printf (" %s%s;", buf_asm, Color_RESET);
|
||
free (buf_asm);
|
||
} else {
|
||
r_cons_printf (" %s;", r_asm_op_get_asm (&asmop));
|
||
}
|
||
free (buf);
|
||
}
|
||
if (db && hit) {
|
||
const ut64 addr = ((RCoreAsmHit *) hitlist->head->data)->addr;
|
||
// r_cons_printf ("Gadget size: %d\n", (int)size);
|
||
const char *key = sdb_fmt ("0x%08"PFMT64x, addr);
|
||
rop_classify (core, db, ropList, key, size);
|
||
}
|
||
break;
|
||
default:
|
||
// Print gadgets with new instruction on a new line.
|
||
r_list_foreach (hitlist, iter, hit) {
|
||
char *comment = rop_comments? r_meta_get_string (core->anal,
|
||
R_META_TYPE_COMMENT, hit->addr): NULL;
|
||
if (hit->len < 0) {
|
||
eprintf ("Invalid hit length here\n");
|
||
continue;
|
||
}
|
||
ut8 *buf = malloc (1 + hit->len);
|
||
if (!buf) {
|
||
break;
|
||
}
|
||
buf[hit->len] = 0;
|
||
r_io_read_at (core->io, hit->addr, buf, hit->len);
|
||
r_asm_set_pc (core->assembler, hit->addr);
|
||
r_asm_disassemble (core->assembler, &asmop, buf, hit->len);
|
||
r_anal_op (core->anal, &analop, hit->addr, buf, hit->len, R_ANAL_OP_MASK_ESIL);
|
||
size += hit->len;
|
||
if (analop.type != R_ANAL_OP_TYPE_RET) {
|
||
char *opstr_n = r_str_newf (" %s", R_STRBUF_SAFEGET (&analop.esil));
|
||
r_list_append (ropList, (void *) opstr_n);
|
||
}
|
||
if (colorize) {
|
||
char *buf_asm = r_print_colorize_opcode (core->print, r_asm_op_get_asm (&asmop),
|
||
core->cons->context->pal.reg, core->cons->context->pal.num, false, 0);
|
||
otype = r_print_color_op_type (core->print, analop.type);
|
||
if (comment) {
|
||
r_cons_printf (" 0x%08"PFMT64x " %18s%s %s%s ; %s\n",
|
||
hit->addr, r_asm_op_get_hex (&asmop), otype, buf_asm, Color_RESET, comment);
|
||
} else {
|
||
r_cons_printf (" 0x%08"PFMT64x " %18s%s %s%s\n",
|
||
hit->addr, r_asm_op_get_hex (&asmop), otype, buf_asm, Color_RESET);
|
||
}
|
||
free (buf_asm);
|
||
} else {
|
||
if (comment) {
|
||
r_cons_printf (" 0x%08"PFMT64x " %18s %s ; %s\n",
|
||
hit->addr, r_asm_op_get_hex (&asmop), r_asm_op_get_asm (&asmop), comment);
|
||
} else {
|
||
r_cons_printf (" 0x%08"PFMT64x " %18s %s\n",
|
||
hit->addr, r_asm_op_get_hex (&asmop), r_asm_op_get_asm (&asmop));
|
||
}
|
||
}
|
||
free (buf);
|
||
}
|
||
if (db && hit) {
|
||
const ut64 addr = ((RCoreAsmHit *) hitlist->head->data)->addr;
|
||
// r_cons_printf ("Gadget size: %d\n", (int)size);
|
||
const char *key = sdb_fmt ("0x%08"PFMT64x, addr);
|
||
rop_classify (core, db, ropList, key, size);
|
||
}
|
||
}
|
||
if (mode != 'j') {
|
||
r_cons_newline ();
|
||
}
|
||
r_list_free (ropList);
|
||
}
|
||
|
||
static int r_core_search_rop(RCore *core, RInterval search_itv, int opt, const char *grep, int regexp, struct search_parameters *param) {
|
||
const ut8 crop = r_config_get_i (core->config, "rop.conditional"); // decide if cjmp, cret, and ccall should be used too for the gadget-search
|
||
const ut8 subchain = r_config_get_i (core->config, "rop.subchains");
|
||
const ut8 max_instr = r_config_get_i (core->config, "rop.len");
|
||
const char *arch = r_config_get (core->config, "asm.arch");
|
||
int max_count = r_config_get_i (core->config, "search.maxhits");
|
||
int i = 0, end = 0, mode = 0, increment = 1, ret, result = true;
|
||
RList /*<endlist_pair>*/ *end_list = r_list_newf (free);
|
||
RList /*<RRegex>*/ *rx_list = NULL;
|
||
int align = core->search->align;
|
||
RListIter *itermap = NULL;
|
||
char *tok, *gregexp = NULL;
|
||
char *grep_arg = NULL;
|
||
bool json_first = true;
|
||
char *rx = NULL;
|
||
int delta = 0;
|
||
ut8 *buf;
|
||
RIOMap *map;
|
||
RAsmOp asmop;
|
||
|
||
Sdb *gadgetSdb = NULL;
|
||
if (r_config_get_i (core->config, "rop.sdb")) {
|
||
if (!(gadgetSdb = sdb_ns (core->sdb, "gadget_sdb", false))) {
|
||
gadgetSdb = sdb_ns (core->sdb, "gadget_sdb", true);
|
||
}
|
||
}
|
||
if (max_count == 0) {
|
||
max_count = -1;
|
||
}
|
||
if (max_instr <= 1) {
|
||
r_list_free (end_list);
|
||
eprintf ("ROP length (rop.len) must be greater than 1.\n");
|
||
if (max_instr == 1) {
|
||
eprintf ("For rop.len = 1, use /c to search for single "
|
||
"instructions. See /c? for help.\n");
|
||
}
|
||
return false;
|
||
}
|
||
|
||
if (!strcmp (arch, "mips")) { // MIPS has no jump-in-the-middle
|
||
increment = 4;
|
||
} else if (!strcmp (arch, "arm")) { // ARM has no jump-in-the-middle
|
||
increment = r_config_get_i (core->config, "asm.bits") == 16? 2: 4;
|
||
} else if (!strcmp (arch, "avr")) { // AVR is halfword aligned.
|
||
increment = 2;
|
||
}
|
||
|
||
// Options, like JSON, linear, ...
|
||
grep_arg = strchr (grep, ' ');
|
||
if (*grep) {
|
||
if (grep_arg) {
|
||
mode = *(grep_arg - 1);
|
||
} else {
|
||
mode = *grep;
|
||
++grep;
|
||
}
|
||
}
|
||
if (grep_arg) {
|
||
grep_arg = strdup (grep_arg);
|
||
grep_arg = r_str_replace (grep_arg, ",,", ";", true);
|
||
grep = grep_arg;
|
||
}
|
||
|
||
if (*grep == ' ') { // grep mode
|
||
for (++grep; *grep == ' '; grep++) {
|
||
;
|
||
}
|
||
} else {
|
||
grep = NULL;
|
||
}
|
||
|
||
// Deal with the grep guy.
|
||
if (grep && regexp) {
|
||
if (!rx_list) {
|
||
rx_list = r_list_newf (free);
|
||
}
|
||
gregexp = strdup (grep);
|
||
tok = strtok (gregexp, ";");
|
||
while (tok) {
|
||
rx = strdup (tok);
|
||
r_list_append (rx_list, rx);
|
||
tok = strtok (NULL, ";");
|
||
}
|
||
}
|
||
if (json) {
|
||
r_cons_printf ("[");
|
||
}
|
||
r_cons_break_push (NULL, NULL);
|
||
|
||
r_list_foreach (param->boundaries, itermap, map) {
|
||
HtUUOptions opt = { 0 };
|
||
HtUU *badstart = ht_uu_new_opt (&opt);
|
||
if (!r_itv_overlap (search_itv, map->itv)) {
|
||
continue;
|
||
}
|
||
RInterval itv = r_itv_intersect (search_itv, map->itv);
|
||
ut64 from = itv.addr, to = r_itv_end (itv);
|
||
if (r_cons_is_breaked ()) {
|
||
break;
|
||
}
|
||
delta = to - from;
|
||
buf = calloc (1, delta);
|
||
if (!buf) {
|
||
result = false;
|
||
goto bad;
|
||
}
|
||
(void) r_io_read_at (core->io, from, buf, delta);
|
||
|
||
// Find the end gadgets.
|
||
for (i = 0; i + 32 < delta; i += increment) {
|
||
RAnalOp end_gadget = R_EMPTY;
|
||
// Disassemble one.
|
||
if (r_anal_op (core->anal, &end_gadget, from + i, buf + i,
|
||
delta - i, R_ANAL_OP_MASK_BASIC) <= 0) {
|
||
r_anal_op_fini (&end_gadget);
|
||
continue;
|
||
}
|
||
if (is_end_gadget (&end_gadget, crop)) {
|
||
struct endlist_pair *epair;
|
||
#if 0
|
||
if (search->maxhits && r_list_length (end_list) >= search->maxhits) {
|
||
// limit number of high level rop gadget results
|
||
r_anal_op_fini (&end_gadget);
|
||
break;
|
||
}
|
||
#endif
|
||
epair = R_NEW0 (struct endlist_pair);
|
||
if (epair) {
|
||
// If this arch has branch delay slots, add the next instr as well
|
||
if (end_gadget.delay) {
|
||
epair->instr_offset = i + increment;
|
||
epair->delay_size = end_gadget.delay;
|
||
} else {
|
||
epair->instr_offset = (intptr_t) i;
|
||
epair->delay_size = end_gadget.delay;
|
||
}
|
||
r_list_append (end_list, (void *) (intptr_t) epair);
|
||
}
|
||
}
|
||
r_anal_op_fini (&end_gadget);
|
||
if (r_cons_is_breaked ()) {
|
||
break;
|
||
}
|
||
// Right now we have a list of all of the end/stop gadgets.
|
||
// We can just construct gadgets from a little bit before them.
|
||
}
|
||
r_list_reverse (end_list);
|
||
// If we have no end gadgets, just skip all of this search nonsense.
|
||
if (r_list_length (end_list) > 0) {
|
||
int prev, next, ropdepth;
|
||
const int max_inst_size_x86 = 15;
|
||
// Get the depth of rop search, should just be max_instr
|
||
// instructions, x86 and friends are weird length instructions, so
|
||
// we'll just assume 15 byte instructions.
|
||
ropdepth = increment == 1?
|
||
max_instr * max_inst_size_x86 /* wow, x86 is long */:
|
||
max_instr * increment;
|
||
if (r_cons_is_breaked ()) {
|
||
break;
|
||
}
|
||
struct endlist_pair *end_gadget = (struct endlist_pair *) r_list_pop (end_list);
|
||
next = end_gadget->instr_offset;
|
||
prev = 0;
|
||
// Start at just before the first end gadget.
|
||
for (i = next - ropdepth; i < (delta - max_inst_size_x86) && max_count; i += increment) {
|
||
if (increment == 1) {
|
||
// give in-boundary instructions a shot
|
||
if (i < prev - max_inst_size_x86) {
|
||
i = prev - max_inst_size_x86;
|
||
}
|
||
} else {
|
||
if (i < prev) {
|
||
i = prev;
|
||
}
|
||
}
|
||
if (i < 0) {
|
||
i = 0;
|
||
}
|
||
if (r_cons_is_breaked ()) {
|
||
break;
|
||
}
|
||
if (i >= next) {
|
||
// We've exhausted the first end-gadget section,
|
||
// move to the next one.
|
||
free (end_gadget);
|
||
if (r_list_get_n (end_list, 0)) {
|
||
prev = i;
|
||
end_gadget = (struct endlist_pair *) r_list_pop (end_list);
|
||
next = end_gadget->instr_offset;
|
||
i = next - ropdepth;
|
||
if (i < 0) {
|
||
i = 0;
|
||
}
|
||
} else {
|
||
break;
|
||
}
|
||
}
|
||
if (i >= end) { // read by chunk of 4k
|
||
r_io_read_at (core->io, from + i, buf + i,
|
||
R_MIN ((delta - i), 4096));
|
||
end = i + 2048;
|
||
}
|
||
ret = r_asm_disassemble (core->assembler, &asmop, buf + i, delta - i);
|
||
if (ret) {
|
||
RList *hitlist;
|
||
r_asm_set_pc (core->assembler, from + i);
|
||
hitlist = construct_rop_gadget (core,
|
||
from + i, buf, i, grep, regexp,
|
||
rx_list, end_gadget, badstart);
|
||
if (!hitlist) {
|
||
continue;
|
||
}
|
||
if (align && (0 != ((from + i) % align))) {
|
||
continue;
|
||
}
|
||
if (gadgetSdb) {
|
||
RListIter *iter;
|
||
|
||
RCoreAsmHit *hit = (RCoreAsmHit *) hitlist->head->data;
|
||
char *headAddr = r_str_newf ("%"PFMT64x, hit->addr);
|
||
if (!headAddr) {
|
||
result = false;
|
||
goto bad;
|
||
}
|
||
|
||
r_list_foreach (hitlist, iter, hit) {
|
||
char *addr = r_str_newf ("%"PFMT64x"(%"PFMT32d")", hit->addr, hit->len);
|
||
if (!addr) {
|
||
free (headAddr);
|
||
result = false;
|
||
goto bad;
|
||
}
|
||
sdb_concat (gadgetSdb, headAddr, addr, 0);
|
||
free (addr);
|
||
}
|
||
free (headAddr);
|
||
}
|
||
|
||
if (json) {
|
||
mode = 'j';
|
||
}
|
||
if ((mode == 'q') && subchain) {
|
||
do {
|
||
print_rop (core, hitlist, mode, &json_first);
|
||
hitlist->head = hitlist->head->n;
|
||
} while (hitlist->head->n);
|
||
} else {
|
||
print_rop (core, hitlist, mode, &json_first);
|
||
}
|
||
r_list_free (hitlist);
|
||
if (max_count > 0) {
|
||
max_count--;
|
||
if (max_count < 1) {
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
if (increment != 1) {
|
||
i = next;
|
||
}
|
||
}
|
||
}
|
||
free (buf);
|
||
}
|
||
if (r_cons_is_breaked ()) {
|
||
eprintf ("\n");
|
||
}
|
||
r_cons_break_pop ();
|
||
|
||
if (json) {
|
||
r_cons_printf ("]\n");
|
||
}
|
||
bad:
|
||
r_list_free (rx_list);
|
||
r_list_free (end_list);
|
||
free (grep_arg);
|
||
free (gregexp);
|
||
return result;
|
||
}
|
||
|
||
static int esil_addrinfo(RAnalEsil *esil) {
|
||
RCore *core = (RCore *) esil->cb.user;
|
||
ut64 num = 0;
|
||
char *src = r_anal_esil_pop (esil);
|
||
if (src && *src && r_anal_esil_get_parm (esil, src, &num)) {
|
||
num = r_core_anal_address (core, num);
|
||
r_anal_esil_pushnum (esil, num);
|
||
} else {
|
||
// error. empty stack?
|
||
return 0;
|
||
}
|
||
free (src);
|
||
return 1;
|
||
}
|
||
|
||
static void do_esil_search(RCore *core, struct search_parameters *param, const char *input) {
|
||
const int hit_combo_limit = r_config_get_i (core->config, "search.esilcombo");
|
||
const bool cfgDebug = r_config_get_i (core->config, "cfg.debug");
|
||
RSearch *search = core->search;
|
||
RSearchKeyword kw = R_EMPTY;
|
||
if (input[0] == 'E' && input[1] != ' ') {
|
||
eprintf ("Usage: /E [esil-expr]\n");
|
||
return;
|
||
}
|
||
if (!core->anal->esil) {
|
||
// initialize esil vm
|
||
r_core_cmd0 (core, "aei");
|
||
if (!core->anal->esil) {
|
||
eprintf ("Cannot initialize the ESIL vm\n");
|
||
return;
|
||
}
|
||
}
|
||
RIOMap *map;
|
||
RListIter *iter;
|
||
r_list_foreach (param->boundaries, iter, map) {
|
||
const int iotrap = r_config_get_i (core->config, "esil.iotrap");
|
||
const int stacksize = r_config_get_i (core->config, "esil.stacksize");
|
||
int nonull = r_config_get_i (core->config, "esil.nonull");
|
||
int hit_happens = 0;
|
||
int hit_combo = 0;
|
||
char *res;
|
||
ut64 nres, addr;
|
||
ut64 from = map->itv.addr;
|
||
ut64 to = r_itv_end (map->itv);
|
||
unsigned int addrsize = r_config_get_i (core->config, "esil.addr.size");
|
||
if (!core->anal->esil) {
|
||
core->anal->esil = r_anal_esil_new (stacksize, iotrap, addrsize);
|
||
}
|
||
/* hook addrinfo */
|
||
core->anal->esil->cb.user = core;
|
||
r_anal_esil_set_op (core->anal->esil, "AddrInfo", esil_addrinfo);
|
||
/* hook addrinfo */
|
||
r_anal_esil_setup (core->anal->esil, core->anal, 1, 0, nonull);
|
||
r_anal_esil_stack_free (core->anal->esil);
|
||
core->anal->esil->verbose = 0;
|
||
|
||
r_cons_break_push (NULL, NULL);
|
||
for (addr = from; addr < to; addr++) {
|
||
if (core->search->align) {
|
||
if ((addr % core->search->align)) {
|
||
continue;
|
||
}
|
||
}
|
||
#if 0
|
||
// we need a way to retrieve info from a speicif address, and make it accessible from the esil search
|
||
// maybe we can just do it like this: 0x804840,AddressType,3,&, ... bitmask
|
||
// executable = 1
|
||
// writable = 2
|
||
// inprogram
|
||
// instack
|
||
// inlibrary
|
||
// inheap
|
||
r_anal_esil_set_op (core->anal->esil, "AddressInfo", esil_search_address_info);
|
||
#endif
|
||
if (r_cons_is_breaked ()) {
|
||
eprintf ("Breaked at 0x%08"PFMT64x "\n", addr);
|
||
break;
|
||
}
|
||
r_anal_esil_set_pc (core->anal->esil, addr);
|
||
if (!r_anal_esil_parse (core->anal->esil, input + 2)) {
|
||
// XXX: return value doesnt seems to be correct here
|
||
eprintf ("Cannot parse esil (%s)\n", input + 2);
|
||
break;
|
||
}
|
||
hit_happens = false;
|
||
res = r_anal_esil_pop (core->anal->esil);
|
||
if (r_anal_esil_get_parm (core->anal->esil, res, &nres)) {
|
||
if (cfgDebug) {
|
||
eprintf ("RES 0x%08"PFMT64x" %"PFMT64d"\n", addr, nres);
|
||
}
|
||
if (nres) {
|
||
if (!_cb_hit (&kw, param, addr)) {
|
||
free (res);
|
||
break;
|
||
}
|
||
// eprintf (" HIT AT 0x%"PFMT64x"\n", addr);
|
||
kw.type = 0; // R_SEARCH_TYPE_ESIL;
|
||
kw.kwidx = search->n_kws;
|
||
kw.count++;
|
||
eprintf ("hits: %d\r", kw.count);
|
||
kw.keyword_length = 0;
|
||
hit_happens = true;
|
||
}
|
||
} else {
|
||
eprintf ("Cannot parse esil (%s)\n", input + 2);
|
||
r_anal_esil_stack_free (core->anal->esil);
|
||
free (res);
|
||
break;
|
||
}
|
||
r_anal_esil_stack_free (core->anal->esil);
|
||
free (res);
|
||
|
||
if (hit_happens) {
|
||
hit_combo++;
|
||
if (hit_combo > hit_combo_limit) {
|
||
eprintf ("Hit search.esilcombo reached (%d). Stopping search. Use f-\n", hit_combo_limit);
|
||
break;
|
||
}
|
||
} else {
|
||
hit_combo = 0;
|
||
}
|
||
}
|
||
r_config_set_i (core->config, "search.kwidx", search->n_kws); // TODO remove
|
||
r_cons_break_pop ();
|
||
}
|
||
r_cons_clear_line (1);
|
||
}
|
||
|
||
#define MAXINSTR 8
|
||
#define SUMARRAY(arr, size, res) do (res) += (arr)[--(size)]; while ((size))
|
||
|
||
#if USE_EMULATION
|
||
// IMHO This code must be deleted
|
||
static int emulateSyscallPrelude(RCore *core, ut64 at, ut64 curpc) {
|
||
int i, inslen, bsize = R_MIN (64, core->blocksize);
|
||
ut8 *arr;
|
||
RAnalOp aop;
|
||
const int mininstrsz = r_anal_archinfo (core->anal, R_ANAL_ARCHINFO_MIN_OP_SIZE);
|
||
const int minopcode = R_MAX (1, mininstrsz);
|
||
const char *a0 = r_reg_get_name (core->anal->reg, R_REG_NAME_SN);
|
||
const char *pc = r_reg_get_name (core->dbg->reg, R_REG_NAME_PC);
|
||
RRegItem *r = r_reg_get (core->dbg->reg, pc, -1);
|
||
RRegItem *reg_a0 = r_reg_get (core->dbg->reg, a0, -1);
|
||
|
||
arr = malloc (bsize);
|
||
if (!arr) {
|
||
eprintf ("Cannot allocate %d byte(s)\n", bsize);
|
||
free (arr);
|
||
return -1;
|
||
}
|
||
r_reg_set_value (core->dbg->reg, r, curpc);
|
||
for (i = 0; curpc < at; curpc++, i++) {
|
||
if (i >= (bsize - 32)) {
|
||
i = 0;
|
||
}
|
||
if (!i) {
|
||
r_io_read_at (core->io, curpc, arr, bsize);
|
||
}
|
||
inslen = r_anal_op (core->anal, &aop, curpc, arr + i, bsize - i, R_ANAL_OP_MASK_BASIC);
|
||
if (inslen) {
|
||
int incr = (core->search->align > 0)? core->search->align - 1: inslen - 1;
|
||
if (incr < 0) {
|
||
incr = minopcode;
|
||
}
|
||
i += incr;
|
||
curpc += incr;
|
||
if (r_anal_op_nonlinear (aop.type)) { // skip the instr
|
||
r_reg_set_value (core->dbg->reg, r, curpc + 1);
|
||
} else { // step instr
|
||
r_core_esil_step (core, UT64_MAX, NULL, NULL);
|
||
}
|
||
}
|
||
}
|
||
free (arr);
|
||
int sysno = r_debug_reg_get (core->dbg, a0);
|
||
r_reg_set_value (core->dbg->reg, reg_a0, -2); // clearing register A0
|
||
return sysno;
|
||
}
|
||
#endif
|
||
|
||
static void do_syscall_search(RCore *core, struct search_parameters *param) {
|
||
RSearch *search = core->search;
|
||
ut64 at;
|
||
#if USE_EMULATION
|
||
ut64 curpc;
|
||
#endif
|
||
ut8 *buf;
|
||
int curpos, idx = 0, count = 0;
|
||
RAnalOp aop = {0};
|
||
int i, ret, bsize = R_MAX (64, core->blocksize);
|
||
int kwidx = core->search->n_kws;
|
||
RIOMap* map;
|
||
RListIter *iter;
|
||
const int mininstrsz = r_anal_archinfo (core->anal, R_ANAL_ARCHINFO_MIN_OP_SIZE);
|
||
const int minopcode = R_MAX (1, mininstrsz);
|
||
RAnalEsil *esil;
|
||
int align = core->search->align;
|
||
int stacksize = r_config_get_i (core->config, "esil.stack.depth");
|
||
int iotrap = r_config_get_i (core->config, "esil.iotrap");
|
||
unsigned int addrsize = r_config_get_i (core->config, "esil.addr.size");
|
||
|
||
if (!(esil = r_anal_esil_new (stacksize, iotrap, addrsize))) {
|
||
return;
|
||
}
|
||
int *previnstr = calloc (MAXINSTR + 1, sizeof (int));
|
||
if (!previnstr) {
|
||
r_anal_esil_free (esil);
|
||
return;
|
||
}
|
||
buf = malloc (bsize);
|
||
if (!buf) {
|
||
eprintf ("Cannot allocate %d byte(s)\n", bsize);
|
||
r_anal_esil_free (esil);
|
||
free (previnstr);
|
||
return;
|
||
}
|
||
ut64 oldoff = core->offset;
|
||
int syscallNumber = 0;
|
||
r_cons_break_push (NULL, NULL);
|
||
const char *a0 = r_reg_get_name (core->anal->reg, R_REG_NAME_SN);
|
||
char *esp = r_str_newf ("%s,=", a0);
|
||
char *esp32 = NULL;
|
||
if (core->anal->bits == 64) {
|
||
const char *reg = r_reg_64_to_32 (core->anal->reg, a0);
|
||
if (reg) {
|
||
esp32 = r_str_newf ("%s,=", reg);
|
||
}
|
||
}
|
||
r_list_foreach (param->boundaries, iter, map) {
|
||
ut64 from = map->itv.addr;
|
||
ut64 to = r_itv_end (map->itv);
|
||
if (from >= to) {
|
||
eprintf ("Error: from must be lower than to\n");
|
||
goto beach;
|
||
}
|
||
if (to == UT64_MAX) {
|
||
eprintf ("Error: Invalid destination boundary\n");
|
||
goto beach;
|
||
}
|
||
for (i = 0, at = from; at < to; at++, i++) {
|
||
if (r_cons_is_breaked ()) {
|
||
break;
|
||
}
|
||
if (i >= (bsize - 32)) {
|
||
i = 0;
|
||
}
|
||
if (align && (at % align)) {
|
||
continue;
|
||
}
|
||
if (!i) {
|
||
r_io_read_at (core->io, at, buf, bsize);
|
||
}
|
||
ret = r_anal_op (core->anal, &aop, at, buf + i, bsize - i, R_ANAL_OP_MASK_ESIL);
|
||
curpos = idx++ % (MAXINSTR + 1);
|
||
previnstr[curpos] = ret; // This array holds prev n instr size + cur instr size
|
||
if (aop.type == R_ANAL_OP_TYPE_MOV) {
|
||
const char *es = R_STRBUF_SAFEGET (&aop.esil);
|
||
if (strstr (es, esp)) {
|
||
if (aop.val != -1) {
|
||
syscallNumber = aop.val;
|
||
}
|
||
} else if (esp32 && strstr (es, esp32)){
|
||
if (aop.val != -1) {
|
||
syscallNumber = aop.val;
|
||
}
|
||
}
|
||
}
|
||
if ((aop.type == R_ANAL_OP_TYPE_SWI) && ret) { // && (aop.val > 10)) {
|
||
int scVector = -1; // int 0x80, svc 0x70, ...
|
||
int scNumber = 0; // r0/eax/...
|
||
#if USE_EMULATION
|
||
// This for calculating no of bytes to be subtracted , to get n instr above syscall
|
||
int nbytes = 0;
|
||
int nb_opcodes = MAXINSTR;
|
||
SUMARRAY (previnstr, nb_opcodes, nbytes);
|
||
curpc = at - (nbytes - previnstr[curpos]);
|
||
scNumber = emulateSyscallPrelude (core, at, curpc);
|
||
#else
|
||
scNumber = syscallNumber;
|
||
#endif
|
||
scVector = (aop.val > 0)? aop.val: -1; // int 0x80 (aop.val = 0x80)
|
||
RSyscallItem *item = r_syscall_get (core->anal->syscall, scNumber, scVector);
|
||
if (item) {
|
||
r_cons_printf ("0x%08"PFMT64x" %s\n", at, item->name);
|
||
}
|
||
memset (previnstr, 0, sizeof (previnstr) * sizeof (*previnstr)); // clearing the buffer
|
||
if (searchflags) {
|
||
char *flag = r_str_newf ("%s%d_%d.%s", searchprefix, kwidx, count, item? item->name: "syscall");
|
||
r_flag_set (core->flags, flag, at, ret);
|
||
free (flag);
|
||
}
|
||
if (*param->cmd_hit) {
|
||
ut64 here = core->offset;
|
||
r_core_seek (core, at, true);
|
||
r_core_cmd (core, param->cmd_hit, 0);
|
||
r_core_seek (core, here, true);
|
||
}
|
||
count++;
|
||
if (search->maxhits > 0 && count >= search->maxhits) {
|
||
r_anal_op_fini (&aop);
|
||
break;
|
||
}
|
||
syscallNumber = 0;
|
||
}
|
||
int inc = (core->search->align > 0)? core->search->align - 1: ret - 1;
|
||
if (inc < 0) {
|
||
inc = minopcode;
|
||
}
|
||
i += inc;
|
||
at += inc;
|
||
r_anal_op_fini (&aop);
|
||
}
|
||
}
|
||
beach:
|
||
r_core_seek (core, oldoff, 1);
|
||
r_anal_esil_free (esil);
|
||
r_cons_break_pop ();
|
||
free (buf);
|
||
free (esp32);
|
||
free (esp);
|
||
}
|
||
|
||
static void do_ref_search(RCore *core, ut64 addr,ut64 from, ut64 to, struct search_parameters *param) {
|
||
const int size = 12;
|
||
char str[512];
|
||
char *comment;
|
||
RAnalFunction *fcn;
|
||
RAnalRef *ref;
|
||
RListIter *iter;
|
||
ut8 buf[12];
|
||
RAsmOp asmop;
|
||
RList *list = r_anal_xrefs_get (core->anal, addr);
|
||
if (list) {
|
||
r_list_foreach (list, iter, ref) {
|
||
r_io_read_at (core->io, ref->addr, buf, size);
|
||
r_asm_set_pc (core->assembler, ref->addr);
|
||
r_asm_disassemble (core->assembler, &asmop, buf, size);
|
||
fcn = r_anal_get_fcn_in (core->anal, ref->addr, 0);
|
||
r_parse_filter (core->parser, ref->addr, core->flags, r_strbuf_get (&asmop.buf_asm),
|
||
str, sizeof (str), core->print->big_endian);
|
||
comment = r_meta_get_string (core->anal, R_META_TYPE_COMMENT, ref->addr);
|
||
char *buf_fcn = comment
|
||
? r_str_newf ("%s; %s", fcn ? fcn->name : "(nofunc)", strtok (comment, "\n"))
|
||
: r_str_newf ("%s", fcn ? fcn->name : "(nofunc)");
|
||
if (from <= ref->addr && to >= ref->addr) {
|
||
r_cons_printf ("%s 0x%" PFMT64x " [%s] %s\n",
|
||
buf_fcn, ref->addr, r_anal_xrefs_type_tostring (ref->type), str);
|
||
if (*param->cmd_hit) {
|
||
ut64 here = core->offset;
|
||
r_core_seek (core, ref->addr, true);
|
||
r_core_cmd (core, param->cmd_hit, 0);
|
||
r_core_seek (core, here, true);
|
||
}
|
||
}
|
||
free (buf_fcn);
|
||
}
|
||
}
|
||
r_list_free (list);
|
||
}
|
||
|
||
static bool do_anal_search(RCore *core, struct search_parameters *param, const char *input) {
|
||
RSearch *search = core->search;
|
||
ut64 at;
|
||
ut8 *buf;
|
||
RAnalOp aop;
|
||
int type = 0;
|
||
int mode = 0;
|
||
int i, ret, bsize = R_MIN (64, core->blocksize);
|
||
int kwidx = core->search->n_kws;
|
||
int count = 0;
|
||
bool firstItem = true;
|
||
|
||
while (*input && *input != ' ') {
|
||
switch (*input) {
|
||
case 'j':
|
||
case 'q':
|
||
mode = *input;
|
||
break;
|
||
case 'l': // "/alt" "/alf"
|
||
switch (type) {
|
||
case 't': // "/alt"
|
||
case 'f': // "/alf"
|
||
for (i = 0; i < 64; i++) {
|
||
const char *str = type == 'f'
|
||
? r_anal_op_family_to_string (i)
|
||
: r_anal_optype_to_string (i);
|
||
if (!str || !*str) {
|
||
break;
|
||
}
|
||
if (!strcmp (str, "undefined")) {
|
||
continue;
|
||
}
|
||
r_cons_println (str);
|
||
}
|
||
break;
|
||
case 's': // "als"
|
||
r_core_cmd0 (core, "asl");
|
||
break;
|
||
case 0:
|
||
r_core_cmd0 (core, "aoml");
|
||
break;
|
||
default:
|
||
eprintf ("wat\n");
|
||
break;
|
||
}
|
||
return false;
|
||
case 'f': // "/af"
|
||
case 's': // "/as"
|
||
case 't': // "/at"
|
||
case ' ':
|
||
type = *input;
|
||
break;
|
||
case 0:
|
||
case '?':
|
||
default:
|
||
r_core_cmd_help (core, help_msg_slash_a);
|
||
return false;
|
||
}
|
||
input++;
|
||
}
|
||
if (type == 's') {
|
||
eprintf ("Shouldnt reach\n");
|
||
// ??
|
||
#if 0
|
||
case 's': // "/s"
|
||
do_syscall_search (core, ¶m);
|
||
dosearch = false;
|
||
break;
|
||
#endif
|
||
return true;
|
||
}
|
||
if (mode == 'j') {
|
||
r_cons_printf ("[");
|
||
}
|
||
input = r_str_trim_ro (input);
|
||
buf = malloc (bsize);
|
||
if (!buf) {
|
||
eprintf ("Cannot allocate %d byte(s)\n", bsize);
|
||
return false;
|
||
}
|
||
r_cons_break_push (NULL, NULL);
|
||
RIOMap* map;
|
||
RListIter *iter;
|
||
r_list_foreach (param->boundaries, iter, map) {
|
||
ut64 from = map->itv.addr;
|
||
ut64 to = r_itv_end (map->itv);
|
||
for (i = 0, at = from; at < to; at++, i++) {
|
||
if (r_cons_is_breaked ()) {
|
||
break;
|
||
}
|
||
if (i >= (bsize - 32)) {
|
||
i = 0;
|
||
}
|
||
if (!i) {
|
||
r_io_read_at (core->io, at, buf, bsize);
|
||
}
|
||
ret = r_anal_op (core->anal, &aop, at, buf + i, bsize - i, R_ANAL_OP_MASK_BASIC);
|
||
if (ret) {
|
||
bool match = false;
|
||
if (type == 'f') {
|
||
const char *fam = r_anal_op_family_to_string (aop.family);
|
||
if (fam) {
|
||
if (!*input || !strcmp (input, fam)) {
|
||
match = true;
|
||
if (mode == 0) {
|
||
r_cons_printf ("0x%08"PFMT64x " - %d %s\n", at, ret, fam);
|
||
}
|
||
}
|
||
}
|
||
} else {
|
||
const char *type = r_anal_optype_to_string (aop.type);
|
||
if (type) {
|
||
bool isCandidate = !*input;
|
||
if (!strcmp (input, "cswi")) {
|
||
if (!strcmp (input + 1, type)) {
|
||
isCandidate = true;
|
||
}
|
||
} else {
|
||
if (!strcmp (input, type)) {
|
||
isCandidate = true;
|
||
}
|
||
}
|
||
if (isCandidate) {
|
||
if (strstr (input, "swi")) {
|
||
if (*input == 'c') {
|
||
match = true; // aop.cond;
|
||
} else {
|
||
match = !aop.cond;
|
||
}
|
||
} else {
|
||
match = true;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
if (match) {
|
||
// char *opstr = r_core_disassemble_instr (core, at, 1);
|
||
char *opstr = r_core_op_str (core, at);
|
||
switch (mode) {
|
||
case 'j':
|
||
r_cons_printf ("%s{\"addr\":%"PFMT64d ",\"size\":%d,\"opstr\":\"%s\"}",
|
||
firstItem? "": ",",
|
||
at, ret, opstr);
|
||
break;
|
||
case 'q':
|
||
r_cons_printf ("0x%08"PFMT64x "\n", at);
|
||
break;
|
||
default:
|
||
r_cons_printf ("0x%08"PFMT64x " %d %s\n", at, ret, opstr);
|
||
break;
|
||
}
|
||
R_FREE (opstr);
|
||
if (*input && searchflags) {
|
||
char flag[64];
|
||
snprintf (flag, sizeof (flag), "%s%d_%d",
|
||
searchprefix, kwidx, count);
|
||
r_flag_set (core->flags, flag, at, ret);
|
||
}
|
||
if (*param->cmd_hit) {
|
||
ut64 here = core->offset;
|
||
r_core_seek (core, at, true);
|
||
r_core_cmd (core, param->cmd_hit, 0);
|
||
r_core_seek (core, here, true);
|
||
}
|
||
count++;
|
||
if (search->maxhits && count >= search->maxhits) {
|
||
goto done;
|
||
}
|
||
firstItem = false;
|
||
}
|
||
int inc = (core->search->align > 0)? core->search->align - 1: ret - 1;
|
||
if (inc < 0) {
|
||
inc = 0;
|
||
}
|
||
i += inc;
|
||
at += inc;
|
||
}
|
||
}
|
||
}
|
||
done:
|
||
if (mode == 'j') {
|
||
r_cons_println ("]\n");
|
||
}
|
||
r_cons_break_pop ();
|
||
free (buf);
|
||
return false;
|
||
}
|
||
|
||
static void do_section_search(RCore *core, struct search_parameters *param, const char *input) {
|
||
double threshold = 1;
|
||
bool r2mode = false;
|
||
if (input && *input) {
|
||
if (*input == '*') {
|
||
r2mode = true;
|
||
}
|
||
sscanf (input, "%lf", &threshold);
|
||
if (threshold < 1) {
|
||
threshold = 1;
|
||
}
|
||
}
|
||
int buf_size = core->blocksize;
|
||
ut8 *buf = malloc (buf_size);
|
||
if (!buf) {
|
||
return;
|
||
}
|
||
double oe = 0;
|
||
RListIter *iter;
|
||
RIOMap *map;
|
||
ut64 begin = UT64_MAX;
|
||
ut64 at, end = 0;
|
||
int index = 0;
|
||
bool lastBlock = true;
|
||
r_cons_break_push (NULL, NULL);
|
||
r_list_foreach (param->boundaries, iter, map) {
|
||
ut64 from = map->itv.addr;
|
||
ut64 to = r_itv_end (map->itv);
|
||
if (r_cons_is_breaked ()) {
|
||
break;
|
||
}
|
||
for (at = from; at < to; at += buf_size) {
|
||
if (begin == UT64_MAX) {
|
||
begin = at;
|
||
}
|
||
r_io_read_at (core->io, at, buf, buf_size);
|
||
double e = r_hash_entropy (buf, buf_size);
|
||
double diff = oe - e;
|
||
diff = R_ABS (diff);
|
||
end = at + buf_size;
|
||
if (diff > threshold) {
|
||
if (r2mode) {
|
||
r_cons_printf ("f entropy_section_%d 0x%08"PFMT64x" 0x%08"PFMT64x"\n", index, end - begin, begin);
|
||
} else {
|
||
r_cons_printf ("0x%08"PFMT64x" - 0x%08"PFMT64x" ~ %lf\n", begin, end, e);
|
||
}
|
||
begin = UT64_MAX;
|
||
index++;
|
||
lastBlock = false;
|
||
} else {
|
||
lastBlock = true;
|
||
}
|
||
oe = e;
|
||
}
|
||
begin = UT64_MAX;
|
||
}
|
||
if (begin != UT64_MAX && lastBlock) {
|
||
if (r2mode) {
|
||
r_cons_printf ("f entropy_section_%d 0x%08"PFMT64x" 0x%08"PFMT64x"\n", index, end - begin, begin);
|
||
} else {
|
||
r_cons_printf ("0x%08"PFMT64x" - 0x%08"PFMT64x" ~ %lf .. last\n", begin, end, 0);
|
||
}
|
||
index++;
|
||
}
|
||
r_cons_break_pop();
|
||
free (buf);
|
||
}
|
||
|
||
static void do_asm_search(RCore *core, struct search_parameters *param, const char *input, int mode, RInterval search_itv) {
|
||
RCoreAsmHit *hit;
|
||
RListIter *iter, *itermap;
|
||
int count = 0, maxhits = 0, filter = 0;
|
||
int kwidx = core->search->n_kws; // (int)r_config_get_i (core->config, "search.kwidx")-1;
|
||
RList *hits;
|
||
RIOMap *map;
|
||
bool regexp = input[1] == '/'; // "/c/"
|
||
bool everyByte = regexp && input[2] == 'a';
|
||
char *end_cmd = strstr (input, " ");
|
||
int outmode;
|
||
if (!regexp && input[1] == 'a') {
|
||
everyByte = true;
|
||
}
|
||
if (regexp && input[2] == 'j') {
|
||
json = true;
|
||
}
|
||
if (input[1] && input[2] == 'j') {
|
||
json = true;
|
||
}
|
||
if (end_cmd) {
|
||
outmode = *(end_cmd - 1);
|
||
} else {
|
||
outmode = input[1];
|
||
}
|
||
if (outmode != 'j') {
|
||
json = 0;
|
||
}
|
||
if (input[1] == 'j') {
|
||
json = true;
|
||
}
|
||
|
||
maxhits = (int) r_config_get_i (core->config, "search.maxhits");
|
||
filter = (int) r_config_get_i (core->config, "asm.filter");
|
||
if (json) {
|
||
r_cons_print ("[");
|
||
}
|
||
r_cons_break_push (NULL, NULL);
|
||
if (everyByte) {
|
||
input ++;
|
||
}
|
||
r_list_foreach (param->boundaries, itermap, map) {
|
||
if (!r_itv_overlap (search_itv, map->itv)) {
|
||
continue;
|
||
}
|
||
ut64 from = map->itv.addr;
|
||
ut64 to = r_itv_end (map->itv);
|
||
if (r_cons_is_breaked ()) {
|
||
break;
|
||
}
|
||
if (maxhits && count >= maxhits) {
|
||
break;
|
||
}
|
||
if (!outmode) {
|
||
hits = NULL;
|
||
} else {
|
||
hits = r_core_asm_strsearch (core, end_cmd,
|
||
from, to, maxhits, regexp, everyByte, mode);
|
||
}
|
||
if (hits) {
|
||
const char *cmdhit = r_config_get (core->config, "cmd.hit");
|
||
r_list_foreach (hits, iter, hit) {
|
||
if (r_cons_is_breaked ()) {
|
||
break;
|
||
}
|
||
if (cmdhit && *cmdhit) {
|
||
r_core_cmdf (core, "%s @ 0x%"PFMT64x, cmdhit, hit->addr);
|
||
}
|
||
switch (outmode) {
|
||
case 'j':
|
||
if (count > 0) {
|
||
r_cons_printf (",");
|
||
}
|
||
r_cons_printf (
|
||
"{\"offset\":%"PFMT64d ",\"len\":%d,\"code\":\"%s\"}",
|
||
hit->addr, hit->len, hit->code);
|
||
break;
|
||
case '*':
|
||
r_cons_printf ("f %s%d_%i = 0x%08"PFMT64x "\n",
|
||
searchprefix, kwidx, count, hit->addr);
|
||
break;
|
||
default:
|
||
if (filter) {
|
||
char tmp[128] = {
|
||
0
|
||
};
|
||
r_parse_filter (core->parser, hit->addr, core->flags, hit->code, tmp, sizeof (tmp),
|
||
core->print->big_endian);
|
||
r_cons_printf ("0x%08"PFMT64x " # %i: %s\n",
|
||
hit->addr, hit->len, tmp);
|
||
} else {
|
||
r_cons_printf ("0x%08"PFMT64x " # %i: %s\n",
|
||
hit->addr, hit->len, hit->code);
|
||
}
|
||
break;
|
||
}
|
||
if (searchflags) {
|
||
const char *flagname = sdb_fmt ("%s%d_%d", searchprefix, kwidx, count);
|
||
if (flagname) {
|
||
r_flag_set (core->flags, flagname, hit->addr, hit->len);
|
||
}
|
||
}
|
||
count++;
|
||
}
|
||
r_list_purge (hits);
|
||
free (hits);
|
||
}
|
||
}
|
||
if (json) {
|
||
r_cons_printf ("]");
|
||
}
|
||
r_cons_break_pop ();
|
||
}
|
||
|
||
static void do_string_search(RCore *core, RInterval search_itv, struct search_parameters *param) {
|
||
ut64 at;
|
||
ut8 *buf;
|
||
RSearch *search = core->search;
|
||
|
||
if (json) {
|
||
r_cons_printf ("[");
|
||
}
|
||
RListIter *iter;
|
||
RIOMap *map;
|
||
if (!searchflags && !json) {
|
||
r_cons_printf ("fs hits\n");
|
||
}
|
||
core->search->inverse = param->inverse;
|
||
// TODO Bad but is to be compatible with the legacy behavior
|
||
if (param->inverse) {
|
||
core->search->maxhits = 1;
|
||
}
|
||
if (core->search->n_kws > 0 || param->crypto_search) {
|
||
RSearchKeyword aeskw;
|
||
if (param->crypto_search) {
|
||
memset (&aeskw, 0, sizeof (aeskw));
|
||
aeskw.keyword_length = 31;
|
||
}
|
||
/* set callback */
|
||
/* TODO: handle last block of data */
|
||
/* TODO: handle ^C */
|
||
/* TODO: launch search in background support */
|
||
// REMOVE OLD FLAGS r_core_cmdf (core, "f-%s*", r_config_get (core->config, "search.prefix"));
|
||
r_search_set_callback (core->search, &_cb_hit, param);
|
||
cmdhit = r_config_get (core->config, "cmd.hit");
|
||
if (!(buf = malloc (core->blocksize))) {
|
||
return;
|
||
}
|
||
if (search->bckwrds) {
|
||
r_search_string_prepare_backward (search);
|
||
}
|
||
r_cons_break_push (NULL, NULL);
|
||
// TODO search cross boundary
|
||
r_list_foreach (param->boundaries, iter, map) {
|
||
if (!r_itv_overlap (search_itv, map->itv)) {
|
||
continue;
|
||
}
|
||
const ut64 saved_nhits = search->nhits;
|
||
RInterval itv = r_itv_intersect (search_itv, map->itv);
|
||
if (r_cons_is_breaked ()) {
|
||
break;
|
||
}
|
||
if (!json) {
|
||
RSearchKeyword *kw = r_list_first (core->search->kws);
|
||
int lenstr = kw? kw->keyword_length: 0;
|
||
const char *bytestr = lenstr > 1? "bytes": "byte";
|
||
eprintf ("Searching %d %s in [0x%"PFMT64x "-0x%"PFMT64x "]\n",
|
||
kw? kw->keyword_length: 0, bytestr, itv.addr, r_itv_end (itv));
|
||
}
|
||
if (r_sandbox_enable (0) && itv.size > 1024 * 64) {
|
||
eprintf ("Sandbox restricts search range\n");
|
||
break;
|
||
}
|
||
|
||
const ut64 from = itv.addr, to = r_itv_end (itv),
|
||
from1 = search->bckwrds ? to : from,
|
||
to1 = search->bckwrds ? from : to;
|
||
ut64 len;
|
||
for (at = from1; at != to1; at = search->bckwrds ? at - len : at + len) {
|
||
print_search_progress (at, to1, search->nhits);
|
||
if (r_cons_is_breaked ()) {
|
||
eprintf ("\n\n");
|
||
break;
|
||
}
|
||
if (search->bckwrds) {
|
||
len = R_MIN (core->blocksize, at - from);
|
||
// TODO prefix_read_at
|
||
if (!r_io_is_valid_offset (core->io, at - len, 0)) {
|
||
break;
|
||
}
|
||
(void)r_io_read_at (core->io, at - len, buf, len);
|
||
} else {
|
||
len = R_MIN (core->blocksize, to - at);
|
||
if (!r_io_is_valid_offset (core->io, at, 0)) {
|
||
break;
|
||
}
|
||
(void)r_io_read_at (core->io, at, buf, len);
|
||
}
|
||
if (param->crypto_search) {
|
||
// TODO support backward search
|
||
int delta = 0;
|
||
if (param->aes_search) {
|
||
delta = r_search_aes_update (core->search, at, buf, len);
|
||
} else if (param->rsa_search) {
|
||
delta = r_search_rsa_update (core->search, at, buf, len);
|
||
}
|
||
if (delta != -1) {
|
||
int t = r_search_hit_new (core->search, &aeskw, at + delta);
|
||
if (!t || t > 1) {
|
||
break;
|
||
}
|
||
}
|
||
} else {
|
||
(void)r_search_update (core->search, at, buf, len);
|
||
if (core->search->maxhits > 0 && core->search->nhits >= core->search->maxhits) {
|
||
goto done;
|
||
}
|
||
}
|
||
}
|
||
print_search_progress (at, to1, search->nhits);
|
||
r_cons_clear_line (1);
|
||
core->num->value = search->nhits;
|
||
if (!json) {
|
||
eprintf ("hits: %" PFMT64d "\n", search->nhits - saved_nhits);
|
||
}
|
||
}
|
||
done:
|
||
r_cons_break_pop ();
|
||
free (buf);
|
||
} else {
|
||
eprintf ("No keywords defined\n");
|
||
}
|
||
|
||
if (json) {
|
||
r_cons_printf ("]");
|
||
}
|
||
}
|
||
|
||
static void rop_kuery(void *data, const char *input) {
|
||
RCore *core = (RCore *) data;
|
||
Sdb *db_rop = sdb_ns (core->sdb, "rop", false);
|
||
bool json_first = true;
|
||
SdbListIter *sdb_iter, *it;
|
||
SdbList *sdb_list;
|
||
SdbNs *ns;
|
||
SdbKv *kv;
|
||
char *out;
|
||
|
||
if (!db_rop) {
|
||
eprintf ("Error: could not find SDB 'rop' namespace\n");
|
||
return;
|
||
}
|
||
|
||
switch (*input) {
|
||
case 'q':
|
||
ls_foreach (db_rop->ns, it, ns) {
|
||
sdb_list = sdb_foreach_list (ns->sdb, false);
|
||
ls_foreach (sdb_list, sdb_iter, kv) {
|
||
r_cons_printf ("%s ", sdbkv_key (kv));
|
||
}
|
||
}
|
||
break;
|
||
case 'j':
|
||
r_cons_print ("{\"gadgets\":[");
|
||
ls_foreach (db_rop->ns, it, ns) {
|
||
sdb_list = sdb_foreach_list (ns->sdb, false);
|
||
ls_foreach (sdb_list, sdb_iter, kv) {
|
||
char *dup = strdup (sdbkv_value (kv));
|
||
bool flag = false; // to free tok when doing strdup
|
||
char *size = strtok (dup, " ");
|
||
char *tok = strtok (NULL, "{}");
|
||
if (!tok) {
|
||
tok = strdup ("NOP");
|
||
flag = true;
|
||
}
|
||
if (json_first) {
|
||
json_first = false;
|
||
} else {
|
||
r_cons_print (",");
|
||
}
|
||
r_cons_printf ("{\"address\":%s, \"size\":%s, \"type\":\"%s\", \"effect\":\"%s\"}",
|
||
sdbkv_key (kv), size, ns->name, tok);
|
||
free (dup);
|
||
if (flag) {
|
||
free (tok);
|
||
}
|
||
}
|
||
}
|
||
r_cons_printf ("]}\n");
|
||
break;
|
||
case ' ':
|
||
if (!strcmp (input + 1, "nop")) {
|
||
out = sdb_querys (core->sdb, NULL, 0, "rop/nop/*");
|
||
if (out) {
|
||
r_cons_println (out);
|
||
free (out);
|
||
}
|
||
} else if (!strcmp (input + 1, "mov")) {
|
||
out = sdb_querys (core->sdb, NULL, 0, "rop/mov/*");
|
||
if (out) {
|
||
r_cons_println (out);
|
||
free (out);
|
||
}
|
||
} else if (!strcmp (input + 1, "const")) {
|
||
out = sdb_querys (core->sdb, NULL, 0, "rop/const/*");
|
||
if (out) {
|
||
r_cons_println (out);
|
||
free (out);
|
||
}
|
||
} else if (!strcmp (input + 1, "arithm")) {
|
||
out = sdb_querys (core->sdb, NULL, 0, "rop/arithm/*");
|
||
if (out) {
|
||
r_cons_println (out);
|
||
free (out);
|
||
}
|
||
} else if (!strcmp (input + 1, "arithm_ct")) {
|
||
out = sdb_querys (core->sdb, NULL, 0, "rop/arithm_ct/*");
|
||
if (out) {
|
||
r_cons_println (out);
|
||
free (out);
|
||
}
|
||
} else {
|
||
eprintf ("Invalid ROP class\n");
|
||
}
|
||
break;
|
||
default:
|
||
out = sdb_querys (core->sdb, NULL, 0, "rop/***");
|
||
if (out) {
|
||
r_cons_println (out);
|
||
free (out);
|
||
}
|
||
break;
|
||
}
|
||
}
|
||
|
||
static int memcmpdiff(const ut8 *a, const ut8 *b, int len) {
|
||
int i, diff = 0;
|
||
for (i = 0; i < len; i++) {
|
||
if (a[i] == b[i] && a[i] == 0x00) {
|
||
/* ignore nulls */
|
||
} else if (a[i] != b[i]) {
|
||
diff++;
|
||
}
|
||
}
|
||
return diff;
|
||
}
|
||
|
||
static void search_similar_pattern_in(RCore *core, int count, ut64 from, ut64 to) {
|
||
ut64 addr = from;
|
||
ut8 *block = calloc (core->blocksize, 1);
|
||
if (!block) {
|
||
return;
|
||
}
|
||
while (addr < to) {
|
||
(void) r_io_read_at (core->io, addr, block, core->blocksize);
|
||
if (r_cons_is_breaked ()) {
|
||
break;
|
||
}
|
||
int diff = memcmpdiff (core->block, block, core->blocksize);
|
||
int equal = core->blocksize - diff;
|
||
if (equal >= count) {
|
||
int pc = (equal * 100) / core->blocksize;
|
||
r_cons_printf ("0x%08"PFMT64x " %4d/%d %3d%% ", addr, equal, core->blocksize, pc);
|
||
ut8 ptr[2] = {
|
||
(ut8)(pc * 2.5), 0
|
||
};
|
||
r_print_fill (core->print, ptr, 1, UT64_MAX, core->blocksize);
|
||
}
|
||
addr += core->blocksize;
|
||
}
|
||
free (block);
|
||
}
|
||
|
||
static void search_similar_pattern(RCore *core, int count, struct search_parameters *param) {
|
||
RIOMap *p;
|
||
RListIter *iter;
|
||
|
||
r_cons_break_push (NULL, NULL);
|
||
r_list_foreach (param->boundaries, iter, p) {
|
||
search_similar_pattern_in (core, count, p->itv.addr, r_itv_end (p->itv));
|
||
}
|
||
r_cons_break_pop ();
|
||
}
|
||
|
||
static bool isArm(RCore *core) {
|
||
RAsm *as = core ? core->assembler : NULL;
|
||
if (as && as->cur && as->cur->arch) {
|
||
if (r_str_startswith (as->cur->arch, "arm")) {
|
||
if (as->cur->bits < 64) {
|
||
return true;
|
||
}
|
||
}
|
||
}
|
||
return false;
|
||
}
|
||
|
||
void _CbInRangeSearchV(RCore *core, ut64 from, ut64 to, int vsize, bool asterisk, int count) {
|
||
bool isarm = isArm (core);
|
||
// this is expensive operation that could be cached but is a callback
|
||
// and for not messing adding a new param
|
||
const char *prefix = r_config_get (core->config, "search.prefix");
|
||
if (isarm) {
|
||
if (to & 1) {
|
||
to--;
|
||
}
|
||
}
|
||
if (!json) {
|
||
r_cons_printf ("0x%"PFMT64x ": 0x%"PFMT64x"\n", from, to);
|
||
} else {
|
||
if (count >= 1) {
|
||
r_cons_printf (",");
|
||
}
|
||
r_cons_printf ("{\"offset\":%"PFMT64d ",\"value\":%"PFMT64d "}",
|
||
from, to);
|
||
}
|
||
r_core_cmdf (core, "f %s.value.0x%08"PFMT64x" %d = 0x%08"PFMT64x" \n", prefix, to, vsize, to); // flag at value of hit
|
||
r_core_cmdf (core, "f %s.offset.0x%08"PFMT64x" %d = 0x%08"PFMT64x " \n", prefix, from, vsize, from); // flag at offset of hit
|
||
const char *cmdHit = r_config_get (core->config, "cmd.hit");
|
||
if (cmdHit && *cmdHit) {
|
||
ut64 addr = core->offset;
|
||
r_core_seek (core, from, 1);
|
||
r_core_cmd (core, cmdHit, 0);
|
||
r_core_seek (core, addr, 1);
|
||
}
|
||
}
|
||
|
||
static ut8 *v_writebuf(RCore *core, RList *nums, int len, char ch, int bsize) {
|
||
ut8 *ptr;
|
||
ut64 n64;
|
||
ut32 n32;
|
||
ut16 n16;
|
||
ut8 n8;
|
||
int i = 0;
|
||
ut8 *buf = calloc (1, bsize);
|
||
if (!buf) {
|
||
eprintf ("Cannot allocate %d byte(s)\n", bsize);
|
||
free (buf);
|
||
return NULL;
|
||
}
|
||
ptr = buf;
|
||
for (i = 0; i < len; i++) {
|
||
switch (ch) {
|
||
case '1':
|
||
n8 = r_num_math (core->num, r_list_pop_head (nums));
|
||
r_write_le8 (ptr, n8);
|
||
ptr = (ut8 *) ptr + sizeof (ut8);
|
||
break;
|
||
case '2':
|
||
n16 = r_num_math (core->num, r_list_pop_head (nums));
|
||
r_write_le16 (ptr, n16);
|
||
ptr = (ut8 *) ptr + sizeof (ut16);
|
||
break;
|
||
case '4':
|
||
n32 = (ut32)r_num_math (core->num, r_list_pop_head (nums));
|
||
r_write_le32 (ptr, n32);
|
||
ptr = (ut8 *) ptr + sizeof (ut32);
|
||
break;
|
||
default:
|
||
case '8':
|
||
n64 = r_num_math (core->num, r_list_pop_head (nums));
|
||
r_write_le64 (ptr, n64);
|
||
ptr = (ut8 *) ptr + sizeof (ut64);
|
||
break;
|
||
}
|
||
if (ptr > ptr + bsize) {
|
||
return NULL;
|
||
}
|
||
}
|
||
return buf;
|
||
}
|
||
|
||
// maybe useful as in util/big.c .?
|
||
static void incBuffer(ut8 *buf, int bufsz) {
|
||
int i = 0;
|
||
while (i < bufsz) {
|
||
buf[i]++;
|
||
if (!buf[i]) {
|
||
i++;
|
||
continue;
|
||
}
|
||
break;
|
||
}
|
||
// may overflow/hang/end/stop/whatever here
|
||
}
|
||
|
||
static void search_collisions(RCore *core, const char *hashName, const ut8 *hashValue, int hashLength) {
|
||
ut8 R_ALIGNED(8) cmphash[128];
|
||
int i, algoType = R_HASH_CRC32;
|
||
int bufsz = core->blocksize;
|
||
ut8 *buf = calloc (1, bufsz);
|
||
if (!buf) {
|
||
return;
|
||
}
|
||
memcpy (buf, core->block, bufsz);
|
||
if (hashLength > sizeof (cmphash)) {
|
||
eprintf ("Hashlength mismatch %d %d\n", hashLength, (int)sizeof (cmphash));
|
||
return;
|
||
}
|
||
memcpy (cmphash, hashValue, hashLength);
|
||
|
||
ut64 hashBits = r_hash_name_to_bits (hashName);
|
||
int hashSize = r_hash_size (hashBits);
|
||
if (hashLength != hashSize) {
|
||
eprintf ("Invalid hash size %d vs %d\n", hashLength, hashSize);
|
||
return;
|
||
}
|
||
|
||
RHash *ctx = r_hash_new (true, algoType);
|
||
if (!ctx) {
|
||
return;
|
||
}
|
||
r_cons_break_push (NULL, NULL);
|
||
ut64 prev = r_sys_now ();
|
||
ut64 inc = 0;
|
||
int amount = 0;
|
||
int mount = 0;
|
||
while (!r_cons_is_breaked ()) {
|
||
ut64 now = r_sys_now ();
|
||
if (now < (prev + 1000000)) {
|
||
amount++;
|
||
} else {
|
||
mount += amount;
|
||
mount /= 2;
|
||
amount = 0;
|
||
prev = now;
|
||
}
|
||
incBuffer (buf, bufsz);
|
||
|
||
r_hash_do_begin (ctx, hashBits);
|
||
(void)r_hash_calculate (ctx, hashBits, buf, bufsz);
|
||
r_hash_do_end (ctx, hashBits);
|
||
|
||
eprintf ("0x%08" PFMT64x " ", inc);
|
||
for (i = 0; i < hashLength; i++) {
|
||
eprintf ("%02x", ctx->digest[i]);
|
||
}
|
||
eprintf (" (%d h/s) \r", mount);
|
||
if (!memcmp (hashValue, ctx->digest, hashLength)) {
|
||
eprintf ("\nCOLLISION!\n");
|
||
r_print_hexdump (core->print, core->offset, buf, bufsz, 0, 16, 0);
|
||
r_cons_flush ();
|
||
}
|
||
inc++;
|
||
}
|
||
r_cons_break_pop ();
|
||
free (buf);
|
||
r_hash_free (ctx);
|
||
}
|
||
|
||
static void __core_cmd_search_asm_infinite (RCore *core, const char *arg) {
|
||
const char *search_in = r_config_get (core->config, "search.in");
|
||
RList *boundaries = r_core_get_boundaries_prot (core, -1, search_in, "search");
|
||
RListIter *iter;
|
||
RIOMap *map;
|
||
RAnalOp analop;
|
||
ut64 at;
|
||
r_list_foreach (boundaries, iter, map) {
|
||
ut64 map_begin = map->itv.addr;
|
||
ut64 map_size = map->itv.size;
|
||
ut64 map_end = map_begin + map_size;
|
||
ut8 *buf = calloc (map_end - map_begin, 1);
|
||
if (!buf) {
|
||
continue;
|
||
}
|
||
(void) r_io_read_at (core->io, map_begin, buf, map_size);
|
||
for (at = map->itv.addr; at + 24< map_end; at += 1) {
|
||
r_anal_op (core->anal, &analop, at, buf + (at - map_begin), 24, R_ANAL_OP_MASK_HINT);
|
||
if (at == analop.jump) {
|
||
r_cons_printf ("0x%08"PFMT64x"\n", at);
|
||
}
|
||
at += analop.size;
|
||
r_anal_op_fini (&analop);
|
||
}
|
||
free (buf);
|
||
}
|
||
}
|
||
|
||
static void __core_cmd_search_asm_byteswap (RCore *core, int nth) {
|
||
RAsmOp asmop;
|
||
ut8 buf[32];
|
||
int i;
|
||
r_io_read_at (core->io, 0, buf, sizeof (buf));
|
||
if (nth < 0 || nth >= sizeof (buf) - 1) {
|
||
return;
|
||
}
|
||
for (i = 0; i <= 0xff; i++) {
|
||
buf[nth] = i;
|
||
if (r_asm_disassemble (core->assembler, &asmop, buf, sizeof (buf)) > 0) {
|
||
const char *asmstr = r_strbuf_get (&asmop.buf_asm);
|
||
if (!strstr (asmstr, "invalid") && !strstr (asmstr, "unaligned")) {
|
||
r_cons_printf ("%02x %s\n", i, asmstr);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
static int cmd_search(void *data, const char *input) {
|
||
bool dosearch = false;
|
||
int ret = true;
|
||
RCore *core = (RCore *) data;
|
||
struct search_parameters param = {
|
||
.core = core,
|
||
.cmd_hit = r_config_get (core->config, "cmd.hit"),
|
||
.inverse = false,
|
||
.crypto_search = false,
|
||
.aes_search = false,
|
||
.rsa_search = false,
|
||
};
|
||
if (!param.cmd_hit) {
|
||
param.cmd_hit = "";
|
||
}
|
||
RSearch *search = core->search;
|
||
int ignorecase = false;
|
||
int param_offset = 2;
|
||
char *inp;
|
||
if (!core || !core->io) {
|
||
eprintf ("Can't search if we don't have an open file.\n");
|
||
return false;
|
||
}
|
||
if (core->in_search) {
|
||
eprintf ("Can't search from within a search.\n");
|
||
return false;
|
||
}
|
||
if (input[0] == '/') {
|
||
if (core->lastsearch) {
|
||
input = core->lastsearch;
|
||
} else {
|
||
eprintf ("No previous search done\n");
|
||
return false;
|
||
}
|
||
} else {
|
||
free (core->lastsearch);
|
||
core->lastsearch = strdup (input);
|
||
}
|
||
|
||
core->in_search = true;
|
||
r_flag_space_push (core->flags, "search");
|
||
const ut64 search_from = r_config_get_i (core->config, "search.from"),
|
||
search_to = r_config_get_i (core->config, "search.to");
|
||
if (search_from > search_to && search_to) {
|
||
eprintf ("search.from > search.to is not supported\n");
|
||
ret = false;
|
||
goto beach;
|
||
}
|
||
// {.addr = UT64_MAX, .size = 0} means search range is unspecified
|
||
RInterval search_itv = {search_from, search_to - search_from};
|
||
bool empty_search_itv = search_from == search_to && search_from != UT64_MAX;
|
||
// TODO full address cannot be represented, shrink 1 byte to [0, UT64_MAX)
|
||
if (search_from == UT64_MAX && search_to == UT64_MAX) {
|
||
search_itv.addr = 0;
|
||
search_itv.size = UT64_MAX;
|
||
}
|
||
|
||
c = 0;
|
||
json = false;
|
||
|
||
searchshow = r_config_get_i (core->config, "search.show");
|
||
param.mode = r_config_get (core->config, "search.in");
|
||
param.boundaries = r_core_get_boundaries_prot (core, -1, param.mode, "search");
|
||
|
||
/*
|
||
this introduces a bug until we implement backwards search
|
||
for all search types
|
||
if (__to < __from) {
|
||
eprintf ("Invalid search range. Check 'e search.{from|to}'\n");
|
||
return false;
|
||
}
|
||
since the backward search will be implemented soon I'm not gonna stick
|
||
checks for every case in switch // jjdredd
|
||
remove when everything is done
|
||
*/
|
||
|
||
core->search->align = r_config_get_i (core->config, "search.align");
|
||
searchflags = r_config_get_i (core->config, "search.flags");
|
||
core->search->maxhits = r_config_get_i (core->config, "search.maxhits");
|
||
searchprefix = r_config_get (core->config, "search.prefix");
|
||
core->search->overlap = r_config_get_i (core->config, "search.overlap");
|
||
if (!core->io->va) {
|
||
RInterval itv = {0, r_io_size (core->io)};
|
||
if (!r_itv_overlap (search_itv, itv)) {
|
||
empty_search_itv = true;
|
||
} else {
|
||
search_itv = r_itv_intersect (search_itv, itv);
|
||
}
|
||
}
|
||
core->search->bckwrds = false;
|
||
|
||
if (empty_search_itv) {
|
||
eprintf ("WARNING from == to?\n");
|
||
ret = false;
|
||
goto beach;
|
||
}
|
||
/* Quick & dirty check for json output */
|
||
if (input[0] && (input[1] == 'j') && (input[0] != ' ')) {
|
||
json = true;
|
||
param_offset++;
|
||
}
|
||
|
||
reread:
|
||
switch (*input) {
|
||
case '!':
|
||
input++;
|
||
param.inverse = true;
|
||
goto reread;
|
||
case 'B':
|
||
{
|
||
bool bin_verbose = r_config_get_i (core->config, "bin.verbose");
|
||
r_config_set_i (core->config, "bin.verbose", false);
|
||
// TODO : iter maps?
|
||
cmd_search_bin (core, search_itv);
|
||
r_config_set_i (core->config, "bin.verbose", bin_verbose);
|
||
}
|
||
break;
|
||
case 'b': // "/b" backward search TODO(maskray) add a generic reverse function
|
||
if (*(++input) == '?') {
|
||
eprintf ("Usage: /b<command> [value] backward search, see '/?'\n");
|
||
goto beach;
|
||
}
|
||
search->bckwrds = true;
|
||
if (core->offset) {
|
||
RInterval itv = {0, core->offset};
|
||
if (!r_itv_overlap (search_itv, itv)) {
|
||
ret = false;
|
||
goto beach;
|
||
} else {
|
||
search_itv = r_itv_intersect (search_itv, itv);
|
||
}
|
||
}
|
||
goto reread;
|
||
case 'o': { // "/o" print the offset of the Previous opcode
|
||
ut64 addr, n = input[param_offset - 1] ? r_num_math (core->num, input + param_offset) : 1;
|
||
if (!n) {
|
||
n = 1;
|
||
}
|
||
if (!r_core_prevop_addr (core, core->offset, n, &addr)) {
|
||
addr = UT64_MAX;
|
||
(void)r_core_asm_bwdis_len (core, NULL, &addr, n);
|
||
}
|
||
if (json) {
|
||
r_cons_printf ("[%"PFMT64u "]", addr);
|
||
} else {
|
||
r_cons_printf ("0x%08"PFMT64x "\n", addr);
|
||
}
|
||
break;
|
||
}
|
||
case 'O': { // "/O" alternative to "/o"
|
||
ut64 addr, n = input[param_offset - 1] ? r_num_math (core->num, input + param_offset) : 1;
|
||
if (!n) {
|
||
n = 1;
|
||
}
|
||
addr = r_core_prevop_addr_force (core, core->offset, n);
|
||
if (json) {
|
||
r_cons_printf ("[%"PFMT64u "]", addr);
|
||
} else {
|
||
r_cons_printf ("0x%08"PFMT64x "\n", addr);
|
||
}
|
||
break;
|
||
}
|
||
case 'R': // "/R"
|
||
if (input[1] == '?') {
|
||
r_core_cmd_help (core, help_msg_slash_R);
|
||
} else if (input[1] == '/') {
|
||
r_core_search_rop (core, search_itv, 0, input + 1, 1, ¶m);
|
||
} else if (input[1] == 'k') {
|
||
if (input[2] == '?') {
|
||
r_core_cmd_help (core, help_msg_slash_Rk);
|
||
} else {
|
||
rop_kuery (core, input + 2);
|
||
}
|
||
} else {
|
||
Sdb *gadgetSdb = sdb_ns (core->sdb, "gadget_sdb", false);
|
||
|
||
if (!gadgetSdb) {
|
||
r_core_search_rop (core, search_itv, 0, input + 1, 0, ¶m);
|
||
} else {
|
||
SdbKv *kv;
|
||
SdbListIter *sdb_iter;
|
||
SdbList *sdb_list = sdb_foreach_list (gadgetSdb, true);
|
||
|
||
ls_foreach (sdb_list, sdb_iter, kv) {
|
||
RList *hitlist = r_core_asm_hit_list_new ();
|
||
if (!hitlist) {
|
||
goto beach;
|
||
}
|
||
|
||
char *s = sdbkv_value (kv);
|
||
ut64 addr;
|
||
int opsz;
|
||
int mode = 0;
|
||
bool json_first = true;
|
||
|
||
// Options, like JSON, linear, ...
|
||
if (input + 1) {
|
||
mode = *(input + 1);
|
||
}
|
||
|
||
do {
|
||
RCoreAsmHit *hit = r_core_asm_hit_new ();
|
||
if (!hit) {
|
||
r_list_free (hitlist);
|
||
goto beach;
|
||
}
|
||
sscanf (s, "%"PFMT64x"(%"PFMT32d")", &addr, &opsz);
|
||
hit->addr = addr;
|
||
hit->len = opsz;
|
||
r_list_append (hitlist, hit);
|
||
} while (*(s = strchr (s, ')') + 1) != '\0');
|
||
|
||
print_rop (core, hitlist, mode, &json_first);
|
||
r_list_free (hitlist);
|
||
}
|
||
}
|
||
}
|
||
goto beach;
|
||
case 'r': // "/r" and "/re"
|
||
{
|
||
ut64 n = (input[1] == ' ' || (input[1] && input[2]==' '))
|
||
? r_num_math (core->num, input + 2): UT64_MAX;
|
||
if (n == 0LL) {
|
||
eprintf ("Cannot find null references.\n");
|
||
break;
|
||
}
|
||
switch (input[1]) {
|
||
case 'c': // "/rc"
|
||
{
|
||
RListIter *iter;
|
||
RIOMap *map;
|
||
r_list_foreach (param.boundaries, iter, map) {
|
||
eprintf ("-- 0x%"PFMT64x" 0x%"PFMT64x"\n", map->itv.addr, r_itv_end (map->itv));
|
||
r_core_anal_search (core, map->itv.addr, r_itv_end (map->itv), n, 'c');
|
||
}
|
||
}
|
||
break;
|
||
case 'a': // "/ra"
|
||
{
|
||
RListIter *iter;
|
||
RIOMap *map;
|
||
r_list_foreach (param.boundaries, iter, map) {
|
||
eprintf ("-- 0x%"PFMT64x" 0x%"PFMT64x"\n", map->itv.addr, r_itv_end (map->itv));
|
||
r_core_anal_search (core, map->itv.addr, r_itv_end (map->itv), n, 0);
|
||
}
|
||
}
|
||
break;
|
||
case 'e': // "/re"
|
||
if (input[2] == '?') {
|
||
eprintf ("Usage: /re $$ - to find references to current address\n");
|
||
} else {
|
||
RListIter *iter;
|
||
RIOMap *map;
|
||
r_list_foreach (param.boundaries, iter, map) {
|
||
eprintf ("-- 0x%"PFMT64x" 0x%"PFMT64x"\n", map->itv.addr, r_itv_end (map->itv));
|
||
ut64 refptr = r_num_math (core->num, input + 2);
|
||
ut64 curseek = core->offset;
|
||
r_core_seek (core, map->itv.addr, 1);
|
||
char *arg = r_str_newf (" %"PFMT64d, r_itv_end (map->itv) - map->itv.addr);
|
||
char *trg = refptr? r_str_newf (" %"PFMT64d, refptr): strdup ("");
|
||
r_core_anal_esil (core, arg, trg);
|
||
free (arg);
|
||
free (trg);
|
||
r_core_seek (core, curseek, 1);
|
||
}
|
||
}
|
||
break;
|
||
case 'r': // "/rr" - read refs
|
||
{
|
||
RListIter *iter;
|
||
RIOMap *map;
|
||
r_list_foreach (param.boundaries, iter, map) {
|
||
eprintf ("-- 0x%"PFMT64x" 0x%"PFMT64x"\n", map->itv.addr, r_itv_end (map->itv));
|
||
r_core_anal_search (core, map->itv.addr, r_itv_end (map->itv), n, 'r');
|
||
}
|
||
}
|
||
break;
|
||
case 'w': // "/rw" - write refs
|
||
{
|
||
RListIter *iter;
|
||
RIOMap *map;
|
||
r_list_foreach (param.boundaries, iter, map) {
|
||
eprintf ("-- 0x%"PFMT64x" 0x%"PFMT64x"\n", map->itv.addr, r_itv_end (map->itv));
|
||
r_core_anal_search (core, map->itv.addr, r_itv_end (map->itv), n, 'w');
|
||
}
|
||
}
|
||
break;
|
||
case ' ': // "/r $$"
|
||
case 0: // "/r"
|
||
{
|
||
RListIter *iter;
|
||
RIOMap *map;
|
||
r_list_foreach (param.boundaries, iter, map) {
|
||
ut64 from = map->itv.addr;
|
||
ut64 to = r_itv_end (map->itv);
|
||
if (input[param_offset - 1] == ' ') {
|
||
r_core_anal_search (core, from, to,
|
||
r_num_math (core->num, input + 2), 0);
|
||
do_ref_search (core, r_num_math (core->num, input + 2), from, to, ¶m);
|
||
} else {
|
||
r_core_anal_search (core, from, to, core->offset, 0);
|
||
do_ref_search (core, core->offset, from, to, ¶m);
|
||
}
|
||
if (r_cons_is_breaked ()) {
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
break;
|
||
case '?':
|
||
r_core_cmd_help (core, help_msg_slash_r);
|
||
break;
|
||
}
|
||
}
|
||
break;
|
||
case 'a': // "/a"
|
||
if (input[1] == '1') {
|
||
__core_cmd_search_asm_byteswap (core, (int)r_num_math (core->num, input + 2));
|
||
} else if (input[1] == 'i') {
|
||
__core_cmd_search_asm_infinite (core, r_str_trim_ro (input + 1));
|
||
} else if (input[1] == ' ') {
|
||
if (input[param_offset - 1]) {
|
||
char *kwd = r_core_asm_search (core, input + param_offset);
|
||
if (!kwd) {
|
||
ret = false;
|
||
goto beach;
|
||
}
|
||
dosearch = true;
|
||
r_search_reset (core->search, R_SEARCH_KEYWORD);
|
||
r_search_set_distance (core->search, (int)
|
||
r_config_get_i (core->config, "search.distance"));
|
||
r_search_kw_add (core->search,
|
||
r_search_keyword_new_hexmask (kwd, NULL));
|
||
free (kwd);
|
||
}
|
||
} else if (input[1] == 's') {
|
||
if (input[2] == 'l') { // "asl"
|
||
r_core_cmd0 (core, "asl");
|
||
} else { // "as"
|
||
do_syscall_search (core, ¶m);
|
||
}
|
||
dosearch = false;
|
||
} else {
|
||
dosearch = do_anal_search (core, ¶m, input + 1);
|
||
}
|
||
break;
|
||
case 'C': { // "/C"
|
||
dosearch = true;
|
||
param.crypto_search = true;
|
||
switch (input[1]) {
|
||
case 'c': // "Cc"
|
||
{
|
||
ret = false;
|
||
const char *arg = r_str_trim_ro (input + 2);
|
||
if (!arg) {
|
||
eprintf ("Usage: /Cc [hashname] [hexpairhashvalue]\n");
|
||
goto beach;
|
||
}
|
||
char *s = strdup (arg);
|
||
char *sp = strchr (s, ' ');
|
||
if (sp) {
|
||
*sp = 0;
|
||
sp++;
|
||
char *hashName = s;
|
||
ut8 *hashValue = (ut8*)strdup (sp);
|
||
if (hashValue) {
|
||
int hashLength = r_hex_str2bin (sp, hashValue);
|
||
if (hashLength > 0) {
|
||
search_collisions (core, hashName, hashValue, hashLength);
|
||
} else {
|
||
eprintf ("Invalid expected hash hexpairs.\n");
|
||
}
|
||
} else {
|
||
eprintf ("Cannot allocate memory.\n");
|
||
}
|
||
free (hashValue);
|
||
ret = true;
|
||
goto beach;
|
||
} else {
|
||
eprintf ("Usage: /Cc [hashname] [hexpairhashvalue]\n");
|
||
goto beach;
|
||
}
|
||
free (s);
|
||
goto beach;
|
||
}
|
||
break;
|
||
case 'd': // "Cd"
|
||
{
|
||
param.crypto_search = false;
|
||
RSearchKeyword *kw;
|
||
kw = r_search_keyword_new_hex ("308200003082", "ffff0000ffff", NULL);
|
||
if (kw) {
|
||
r_search_kw_add (core->search, kw);
|
||
// eprintf ("Searching %d byte(s)...\n", kw->keyword_length);
|
||
r_search_begin (core->search);
|
||
} else {
|
||
eprintf ("bad pointer\n");
|
||
dosearch = false;
|
||
}
|
||
}
|
||
break;
|
||
case 'a':
|
||
param.aes_search = true;
|
||
break;
|
||
case 'r':
|
||
param.rsa_search = true;
|
||
break;
|
||
default: {
|
||
dosearch = false;
|
||
param.crypto_search = false;
|
||
r_core_cmd_help (core, help_msg_slash_C);
|
||
}
|
||
}
|
||
} break;
|
||
case 'M': // "/M"
|
||
{
|
||
ut64 addr = search_itv.addr;
|
||
RListIter *iter;
|
||
RIOMap *map;
|
||
int count = 0;
|
||
const int align = core->search->align;
|
||
r_list_foreach (param.boundaries, iter, map) {
|
||
// eprintf ("-- %llx %llx\n", map->itv.addr, r_itv_end (map->itv));
|
||
r_cons_break_push (NULL, NULL);
|
||
for (addr = map->itv.addr; addr < r_itv_end (map->itv); addr++) {
|
||
if (r_cons_is_breaked ()) {
|
||
break;
|
||
}
|
||
if (align && (0 != (addr % align))) {
|
||
addr += (addr % align) - 1;
|
||
continue;
|
||
}
|
||
char *mp = r_str_newf ("/mnt%d", count);
|
||
eprintf ("[*] Trying to mount at 0x%08"PFMT64x"\r[", addr);
|
||
if (r_fs_mount (core->fs, NULL, mp, addr)) {
|
||
count ++;
|
||
eprintf ("Mounted %s at 0x%08"PFMT64x"\n", mp, addr);
|
||
}
|
||
free (mp);
|
||
}
|
||
r_cons_clear_line (1);
|
||
r_cons_break_pop ();
|
||
}
|
||
eprintf ("\n");
|
||
}
|
||
break;
|
||
case 'm': // "/m"
|
||
dosearch = false;
|
||
if (input[1] == 'e') { // "/me"
|
||
r_cons_printf ("* r2 thinks%s\n", input + 2);
|
||
} else if (input[1] == ' ' || input[1] == '\0' || json) {
|
||
int ret;
|
||
const char *file = input[param_offset - 1]? input + param_offset: NULL;
|
||
ut64 addr = search_itv.addr;
|
||
RListIter *iter;
|
||
RIOMap *map;
|
||
if (json) {
|
||
r_cons_printf ("[");
|
||
}
|
||
r_core_magic_reset (core);
|
||
int maxHits = r_config_get_i (core->config, "search.maxhits");
|
||
int hits = 0;
|
||
r_list_foreach (param.boundaries, iter, map) {
|
||
if (!json) {
|
||
eprintf ("-- %llx %llx\n", map->itv.addr, r_itv_end (map->itv));
|
||
}
|
||
r_cons_break_push (NULL, NULL);
|
||
for (addr = map->itv.addr; addr < r_itv_end (map->itv); addr++) {
|
||
if (r_cons_is_breaked ()) {
|
||
break;
|
||
}
|
||
ret = r_core_magic_at (core, file, addr, 99, false, json, &hits);
|
||
if (ret == -1) {
|
||
// something went terribly wrong.
|
||
break;
|
||
}
|
||
if (maxHits && hits >= maxHits) {
|
||
break;
|
||
}
|
||
addr += ret - 1;
|
||
}
|
||
r_cons_clear_line (1);
|
||
r_cons_break_pop ();
|
||
}
|
||
if (json) {
|
||
r_cons_printf ("]");
|
||
}
|
||
} else {
|
||
eprintf ("Usage: /m [file]\n");
|
||
}
|
||
r_cons_clear_line (1);
|
||
break;
|
||
case 'p': // "/p"
|
||
{
|
||
if (input[param_offset - 1]) {
|
||
int ps = atoi (input + param_offset);
|
||
if (ps > 1) {
|
||
RListIter *iter;
|
||
RIOMap *map;
|
||
r_list_foreach (param.boundaries, iter, map) {
|
||
eprintf ("-- %llx %llx\n", map->itv.addr, r_itv_end (map->itv));
|
||
r_cons_break_push (NULL, NULL);
|
||
r_search_pattern_size (core->search, ps);
|
||
r_search_pattern (core->search, map->itv.addr, r_itv_end (map->itv));
|
||
r_cons_break_pop ();
|
||
}
|
||
break;
|
||
}
|
||
}
|
||
eprintf ("Invalid pattern size (must be > 0)\n");
|
||
}
|
||
break;
|
||
case 'P': // "/P"
|
||
search_similar_pattern (core, atoi (input + 1), ¶m);
|
||
break;
|
||
case 'V': // "/V"
|
||
{
|
||
if (input[2] == 'j') {
|
||
json = true;
|
||
param_offset++;
|
||
}
|
||
int err = 1, vsize = atoi (input + 1);
|
||
bool asterisk = strchr (input + 1, '*');
|
||
const char *num_str = input + param_offset + 1;
|
||
if (vsize && input[2] && num_str) {
|
||
if (json) {
|
||
r_cons_printf ("[");
|
||
}
|
||
char *w = strchr (num_str, ' ');
|
||
if (w) {
|
||
*w++ = 0;
|
||
ut64 vmin = r_num_math (core->num, num_str);
|
||
ut64 vmax = r_num_math (core->num, w);
|
||
if (vsize > 0) {
|
||
RIOMap *map;
|
||
RListIter *iter;
|
||
r_list_foreach (param.boundaries, iter, map) {
|
||
err = 0;
|
||
int hits = r_core_search_value_in_range (core, map->itv,
|
||
vmin, vmax, vsize, asterisk,
|
||
_CbInRangeSearchV);
|
||
if (!json) {
|
||
eprintf ("hits: %d\n", hits);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
if (json) {
|
||
r_cons_printf ("]");
|
||
}
|
||
}
|
||
if (err) {
|
||
eprintf ("Usage: /V[1|2|4|8] [minval] [maxval]\n");
|
||
}
|
||
}
|
||
dosearch = false;
|
||
break;
|
||
case 'v': // "/v"
|
||
if (input[1]) {
|
||
if (input[1] == '?') {
|
||
r_cons_print ("Usage: /v[1|2|4|8] [value]\n");
|
||
break;
|
||
}
|
||
if (input[2] == 'j') {
|
||
json = true;
|
||
param_offset++;
|
||
}
|
||
}
|
||
r_search_reset (core->search, R_SEARCH_KEYWORD);
|
||
r_search_set_distance (core->search, (int)
|
||
r_config_get_i (core->config, "search.distance"));
|
||
char *v_str = (char *)r_str_trim_ro (input + param_offset);
|
||
RList *nums = r_num_str_split_list (v_str);
|
||
int len = r_list_length (nums);
|
||
int bsize = 0;
|
||
ut8 *v_buf = NULL;
|
||
switch (input[1]) {
|
||
case '8':
|
||
if (input[param_offset]) {
|
||
bsize = sizeof (ut64) * len;
|
||
v_buf = v_writebuf (core, nums, len, '8', bsize);
|
||
} else {
|
||
eprintf ("Usage: /v8 value\n");
|
||
}
|
||
break;
|
||
case '1':
|
||
if (input[param_offset]) {
|
||
bsize = sizeof (ut8) * len;
|
||
v_buf = v_writebuf (core, nums, len, '1', bsize);
|
||
} else {
|
||
eprintf ("Usage: /v1 value\n");
|
||
}
|
||
break;
|
||
case '2':
|
||
if (input[param_offset]) {
|
||
bsize = sizeof (ut16) * len;
|
||
v_buf = v_writebuf (core, nums, len, '2', bsize);
|
||
} else {
|
||
eprintf ("Usage: /v2 value\n");
|
||
}
|
||
break;
|
||
default: // default size
|
||
case '4':
|
||
if (input[param_offset - 1]) {
|
||
if (input[param_offset]) {
|
||
bsize = sizeof (ut32) * len;
|
||
v_buf = v_writebuf (core, nums, len, '4', bsize);
|
||
}
|
||
} else {
|
||
eprintf ("Usage: /v4 value\n");
|
||
}
|
||
break;
|
||
}
|
||
if (v_buf) {
|
||
r_search_kw_add (core->search,
|
||
r_search_keyword_new ((const ut8 *) v_buf, bsize, NULL, 0, NULL));
|
||
free (v_buf);
|
||
}
|
||
r_search_begin (core->search);
|
||
dosearch = true;
|
||
break;
|
||
case 'w': // "/w" search wide string, includes ignorecase search functionality (/wi cmd)!
|
||
if (input[1]) {
|
||
if (input[2]) {
|
||
if (input[1] == 'j' || input[2] == 'j') {
|
||
json = true;
|
||
}
|
||
if (input[1] == 'i' || input[2] == 'i') {
|
||
ignorecase = true;
|
||
}
|
||
}
|
||
|
||
if (input[1 + json + ignorecase] == ' ') {
|
||
int strstart, len;
|
||
const char *p2;
|
||
char *p, *str;
|
||
strstart = 2 + json + ignorecase;
|
||
len = strlen (input + strstart);
|
||
str = calloc ((len + 1), 2);
|
||
for (p2 = input + strstart, p = str; *p2; p += 2, p2++) {
|
||
if (ignorecase) {
|
||
p[0] = tolower ((const ut8) *p2);
|
||
} else {
|
||
p[0] = *p2;
|
||
}
|
||
p[1] = 0;
|
||
}
|
||
r_search_reset (core->search, R_SEARCH_KEYWORD);
|
||
r_search_set_distance (core->search, (int)
|
||
r_config_get_i (core->config, "search.distance"));
|
||
RSearchKeyword *skw;
|
||
skw = r_search_keyword_new ((const ut8 *) str, len * 2, NULL, 0, NULL);
|
||
free (str);
|
||
if (skw) {
|
||
skw->icase = ignorecase;
|
||
r_search_kw_add (core->search, skw);
|
||
r_search_begin (core->search);
|
||
dosearch = true;
|
||
} else {
|
||
eprintf ("Invalid keyword\n");
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
break;
|
||
case 'i': // "/i"
|
||
if (input[param_offset - 1] != ' ') {
|
||
eprintf ("Missing ' ' after /i\n");
|
||
ret = false;
|
||
goto beach;
|
||
}
|
||
ignorecase = true;
|
||
case 'j': // "/j"
|
||
if (input[0] == 'j') {
|
||
json = true;
|
||
}
|
||
// fallthrough
|
||
case ' ': // "/ " search string
|
||
inp = strdup (input + 1 + ignorecase + json);
|
||
len = r_str_unescape (inp);
|
||
#if 0
|
||
if (!json) {
|
||
eprintf ("Searching %d byte(s) from 0x%08"PFMT64x " to 0x%08"PFMT64x ": ",
|
||
len, search_itv.addr, r_itv_end (search_itv));
|
||
for (i = 0; i < len; i++) {
|
||
eprintf ("%02x ", (ut8) inp[i]);
|
||
}
|
||
eprintf ("\n");
|
||
}
|
||
#endif
|
||
r_search_reset (core->search, R_SEARCH_KEYWORD);
|
||
r_search_set_distance (core->search, (int)
|
||
r_config_get_i (core->config, "search.distance"));
|
||
{
|
||
RSearchKeyword *skw;
|
||
skw = r_search_keyword_new ((const ut8 *) inp, len, NULL, 0, NULL);
|
||
free (inp);
|
||
if (skw) {
|
||
skw->icase = ignorecase;
|
||
skw->type = R_SEARCH_KEYWORD_TYPE_STRING;
|
||
r_search_kw_add (core->search, skw);
|
||
} else {
|
||
eprintf ("Invalid keyword\n");
|
||
break;
|
||
}
|
||
}
|
||
r_search_begin (core->search);
|
||
dosearch = true;
|
||
break;
|
||
case 'e': // "/e" match regexp
|
||
if (input[1] == '?') {
|
||
eprintf ("Usage: /e /foo/i or /e/foo/i\n");
|
||
} else if (input[1]) {
|
||
RSearchKeyword *kw;
|
||
kw = r_search_keyword_new_regexp (input + 1, NULL);
|
||
if (!kw) {
|
||
eprintf ("Invalid regexp specified\n");
|
||
break;
|
||
}
|
||
r_search_reset (core->search, R_SEARCH_REGEXP);
|
||
// TODO distance is unused
|
||
r_search_set_distance (core->search, (int)
|
||
r_config_get_i (core->config, "search.distance"));
|
||
r_search_kw_add (core->search, kw);
|
||
r_search_begin (core->search);
|
||
dosearch = true;
|
||
} else {
|
||
eprintf ("Missing regex\n");
|
||
}
|
||
break;
|
||
case 'E': // "/E"
|
||
if (core->io && core->io->debug) {
|
||
r_debug_map_sync (core->dbg);
|
||
}
|
||
do_esil_search (core, ¶m, input);
|
||
goto beach;
|
||
case 'd': // "/d" search delta key
|
||
if (input[1]) {
|
||
r_search_reset (core->search, R_SEARCH_DELTAKEY);
|
||
r_search_kw_add (core->search,
|
||
r_search_keyword_new_hexmask (input + param_offset, NULL));
|
||
r_search_begin (core->search);
|
||
dosearch = true;
|
||
} else {
|
||
eprintf ("Missing delta\n");
|
||
}
|
||
break;
|
||
case 'h': // "/h"
|
||
{
|
||
char *p, *arg = r_str_trim (strdup (input + 1));
|
||
p = strchr (arg, ' ');
|
||
if (p) {
|
||
*p++ = 0;
|
||
if (*arg == '?') {
|
||
eprintf ("Usage: /h md5 [hash] [datalen]\n");
|
||
} else {
|
||
ut32 min = UT32_MAX;
|
||
ut32 max = UT32_MAX;
|
||
char *pmax, *pmin = strchr (p, ' ');
|
||
if (pmin) {
|
||
*pmin++ = 0;
|
||
pmax = strchr (pmin, ' ');
|
||
if (pmax) {
|
||
*pmax++ = 0;
|
||
max = r_num_math (core->num, pmax);
|
||
}
|
||
min = r_num_math (core->num, pmin);
|
||
}
|
||
search_hash (core, arg, p, min, max, ¶m);
|
||
}
|
||
} else {
|
||
eprintf ("Missing hash. See ph?\n");
|
||
}
|
||
free (arg);
|
||
}
|
||
break;
|
||
case 'f': // "/f" forward search
|
||
if (core->offset) {
|
||
RInterval itv = {core->offset, -core->offset};
|
||
if (!r_itv_overlap (search_itv, itv)) {
|
||
ret = false;
|
||
goto beach;
|
||
} else {
|
||
search_itv = r_itv_intersect (search_itv, itv);
|
||
}
|
||
}
|
||
break;
|
||
case 'g': // "/g" graph search
|
||
if (input[1] == '?') {
|
||
r_cons_printf ("Usage: /g[g] [fromaddr] @ [toaddr]\n");
|
||
r_cons_printf ("(find all graph paths A to B (/gg follow jumps, see search.count and anal.depth)");
|
||
} else {
|
||
ut64 addr = UT64_MAX;
|
||
if (input[1]) {
|
||
addr = r_num_math (core->num, input + 2);
|
||
} else {
|
||
RAnalFunction *fcn = r_anal_get_fcn_at (core->anal, addr, 0);
|
||
if (fcn) {
|
||
addr = fcn->addr;
|
||
} else {
|
||
addr = core->offset;
|
||
}
|
||
}
|
||
const int depth = r_config_get_i (core->config, "anal.depth");
|
||
// Va;ifate input length
|
||
if (input[1] != '\0') {
|
||
r_core_anal_paths (core, addr, core->offset, input[1] == 'g', depth, (input[1] == 'j' || input[2] == 'j'));
|
||
}
|
||
}
|
||
break;
|
||
case 'F': // "/F" search file /F [file] ([offset] ([sz]))
|
||
if (input[param_offset - 1] == ' ') {
|
||
int n_args;
|
||
char **args = r_str_argv (input + param_offset, &n_args);
|
||
ut8 *buf = NULL;
|
||
ut64 offset = 0;
|
||
int size;
|
||
buf = (ut8 *)r_file_slurp (args[0], &size);
|
||
if (!buf) {
|
||
eprintf ("Cannot open '%s'\n", args[0]);
|
||
r_str_argv_free (args);
|
||
break;
|
||
}
|
||
if (n_args > 1) {
|
||
offset = r_num_math (core->num, args[1]);
|
||
if (size <= offset) {
|
||
eprintf ("size <= offset\n");
|
||
r_str_argv_free (args);
|
||
free (buf);
|
||
break;
|
||
}
|
||
}
|
||
if (n_args > 2) {
|
||
len = r_num_math (core->num, args[2]);
|
||
if (len > size - offset) {
|
||
eprintf ("len too large\n");
|
||
r_str_argv_free (args);
|
||
free (buf);
|
||
break;
|
||
}
|
||
} else {
|
||
len = size - offset;
|
||
}
|
||
RSearchKeyword *kw;
|
||
r_search_reset (core->search, R_SEARCH_KEYWORD);
|
||
r_search_set_distance (core->search, (int)r_config_get_i (core->config, "search.distance"));
|
||
kw = r_search_keyword_new (buf + offset, len, NULL, 0, NULL);
|
||
if (kw) {
|
||
r_search_kw_add (core->search, kw);
|
||
// eprintf ("Searching %d byte(s)...\n", kw->keyword_length);
|
||
r_search_begin (core->search);
|
||
dosearch = true;
|
||
} else {
|
||
eprintf ("no keyword\n");
|
||
}
|
||
|
||
r_str_argv_free (args);
|
||
free (buf);
|
||
} else {
|
||
eprintf ("Usage: /F[j] [file] ([offset] ([sz]))\n");
|
||
}
|
||
break;
|
||
case 'x': // "/x" search hex
|
||
if (input[1] == '?') {
|
||
r_core_cmd_help (core, help_msg_slash_x);
|
||
} else {
|
||
RSearchKeyword *kw;
|
||
char *s, *p = strdup (input + param_offset);
|
||
r_search_reset (core->search, R_SEARCH_KEYWORD);
|
||
r_search_set_distance (core->search, (int)r_config_get_i (core->config, "search.distance"));
|
||
s = strchr (p, ':');
|
||
if (s) {
|
||
*s++ = 0;
|
||
kw = r_search_keyword_new_hex (p, s, NULL);
|
||
} else {
|
||
kw = r_search_keyword_new_hexmask (p, NULL);
|
||
}
|
||
if (kw) {
|
||
r_search_kw_add (core->search, kw);
|
||
// eprintf ("Searching %d byte(s)...\n", kw->keyword_length);
|
||
r_search_begin (core->search);
|
||
dosearch = true;
|
||
} else {
|
||
eprintf ("no keyword\n");
|
||
}
|
||
free (p);
|
||
}
|
||
break;
|
||
case 'c': // "/c" search asm
|
||
dosearch = 0;
|
||
if (input[1] == '?') {
|
||
r_core_cmd_help (core, help_msg_slash_c);
|
||
} else if (input[1] == 'i') { // "/ci"
|
||
do_asm_search (core, ¶m, input + 1, 'i', search_itv);
|
||
} else if (input[1] == 'e') { // "/ce"
|
||
do_asm_search (core, ¶m, input + 1, 'e', search_itv);
|
||
} else { // "/c"
|
||
do_asm_search (core, ¶m, input, 0, search_itv);
|
||
}
|
||
break;
|
||
case 's': // "/s"
|
||
do_section_search (core, ¶m, input + 1);
|
||
break;
|
||
case '+': // "/+"
|
||
if (input[1] == ' ') {
|
||
// TODO: support /+j
|
||
char *buf = malloc (strlen (input) * 2);
|
||
char *str = strdup (input + 2);
|
||
int ochunksize;
|
||
int i, len, chunksize = r_config_get_i (core->config, "search.chunk");
|
||
if (chunksize < 1) {
|
||
chunksize = core->assembler->bits / 8;
|
||
}
|
||
len = r_str_unescape (str);
|
||
ochunksize = chunksize = R_MIN (len, chunksize);
|
||
eprintf ("Using chunksize: %d\n", chunksize);
|
||
core->in_search = false;
|
||
for (i = 0; i < len; i += chunksize) {
|
||
chunksize = ochunksize;
|
||
again:
|
||
r_hex_bin2str ((ut8 *) str + i, R_MIN (chunksize, len - i), buf);
|
||
eprintf ("/x %s\n", buf);
|
||
r_core_cmdf (core, "/x %s", buf);
|
||
if (core->num->value == 0) {
|
||
chunksize--;
|
||
if (chunksize < 1) {
|
||
eprintf ("Oops\n");
|
||
free (buf);
|
||
free (str);
|
||
goto beach;
|
||
}
|
||
eprintf ("Repeat with chunk size %d\n", chunksize);
|
||
goto again;
|
||
}
|
||
}
|
||
free (str);
|
||
free (buf);
|
||
} else {
|
||
eprintf ("Usage: /+ [string]\n");
|
||
}
|
||
break;
|
||
case 'z': // "/z" search strings of min-max range
|
||
{
|
||
char *p;
|
||
ut32 min, max;
|
||
if (!input[1]) {
|
||
eprintf ("Usage: /z min max\n");
|
||
break;
|
||
}
|
||
if ((p = strchr (input + 2, ' '))) {
|
||
*p = 0;
|
||
max = r_num_math (core->num, p + 1);
|
||
} else {
|
||
eprintf ("Usage: /z min max\n");
|
||
break;
|
||
}
|
||
min = r_num_math (core->num, input + 2);
|
||
if (!r_search_set_string_limits (core->search, min, max)) {
|
||
eprintf ("Error: min must be lower than max\n");
|
||
break;
|
||
}
|
||
r_search_reset (core->search, R_SEARCH_STRING);
|
||
r_search_set_distance (core->search, (int)
|
||
r_config_get_i (core->config, "search.distance"));
|
||
{
|
||
RSearchKeyword *kw = r_search_keyword_new_hexmask ("00", NULL);
|
||
kw->type = R_SEARCH_KEYWORD_TYPE_STRING;
|
||
r_search_kw_add (search, kw);
|
||
}
|
||
r_search_begin (search);
|
||
dosearch = true;
|
||
}
|
||
break;
|
||
case '?': // "/?"
|
||
r_core_cmd_help (core, help_msg_slash);
|
||
break;
|
||
default:
|
||
eprintf ("See /? for help.\n");
|
||
break;
|
||
}
|
||
r_config_set_i (core->config, "search.kwidx", search->n_kws);
|
||
if (dosearch) {
|
||
do_string_search (core, search_itv, ¶m);
|
||
}
|
||
beach:
|
||
core->num->value = search->nhits;
|
||
core->in_search = false;
|
||
r_flag_space_pop (core->flags);
|
||
if (json) {
|
||
r_cons_newline ();
|
||
}
|
||
r_list_free (param.boundaries);
|
||
r_search_kw_reset (search);
|
||
return ret;
|
||
}
|