mirror of
https://github.com/FEX-Emu/linux.git
synced 2024-12-23 01:40:30 +00:00
a016892cd6
Cleans up TIPC's source code to eliminate the presence of unnecessary use of {} around single statements. These changes are purely cosmetic and do not alter the operation of TIPC in any way. Signed-off-by: Allan Stephens <Allan.Stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
414 lines
11 KiB
C
414 lines
11 KiB
C
/*
|
|
* net/tipc/msg.c: TIPC message header routines
|
|
*
|
|
* Copyright (c) 2000-2006, Ericsson AB
|
|
* Copyright (c) 2005, Wind River Systems
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. Neither the names of the copyright holders nor the names of its
|
|
* contributors may be used to endorse or promote products derived from
|
|
* this software without specific prior written permission.
|
|
*
|
|
* Alternatively, this software may be distributed under the terms of the
|
|
* GNU General Public License ("GPL") version 2 as published by the Free
|
|
* Software Foundation.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
|
|
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include "core.h"
|
|
#include "msg.h"
|
|
|
|
u32 tipc_msg_tot_importance(struct tipc_msg *m)
|
|
{
|
|
if (likely(msg_isdata(m))) {
|
|
if (likely(msg_orignode(m) == tipc_own_addr))
|
|
return msg_importance(m);
|
|
return msg_importance(m) + 4;
|
|
}
|
|
if ((msg_user(m) == MSG_FRAGMENTER) &&
|
|
(msg_type(m) == FIRST_FRAGMENT))
|
|
return msg_importance(msg_get_wrapped(m));
|
|
return msg_importance(m);
|
|
}
|
|
|
|
|
|
void tipc_msg_init(struct tipc_msg *m, u32 user, u32 type,
|
|
u32 hsize, u32 destnode)
|
|
{
|
|
memset(m, 0, hsize);
|
|
msg_set_version(m);
|
|
msg_set_user(m, user);
|
|
msg_set_hdr_sz(m, hsize);
|
|
msg_set_size(m, hsize);
|
|
msg_set_prevnode(m, tipc_own_addr);
|
|
msg_set_type(m, type);
|
|
if (!msg_short(m)) {
|
|
msg_set_orignode(m, tipc_own_addr);
|
|
msg_set_destnode(m, destnode);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* tipc_msg_calc_data_size - determine total data size for message
|
|
*/
|
|
|
|
int tipc_msg_calc_data_size(struct iovec const *msg_sect, u32 num_sect)
|
|
{
|
|
int dsz = 0;
|
|
int i;
|
|
|
|
for (i = 0; i < num_sect; i++)
|
|
dsz += msg_sect[i].iov_len;
|
|
return dsz;
|
|
}
|
|
|
|
/**
|
|
* tipc_msg_build - create message using specified header and data
|
|
*
|
|
* Note: Caller must not hold any locks in case copy_from_user() is interrupted!
|
|
*
|
|
* Returns message data size or errno
|
|
*/
|
|
|
|
int tipc_msg_build(struct tipc_msg *hdr,
|
|
struct iovec const *msg_sect, u32 num_sect,
|
|
int max_size, int usrmem, struct sk_buff **buf)
|
|
{
|
|
int dsz, sz, hsz, pos, res, cnt;
|
|
|
|
dsz = tipc_msg_calc_data_size(msg_sect, num_sect);
|
|
if (unlikely(dsz > TIPC_MAX_USER_MSG_SIZE)) {
|
|
*buf = NULL;
|
|
return -EINVAL;
|
|
}
|
|
|
|
pos = hsz = msg_hdr_sz(hdr);
|
|
sz = hsz + dsz;
|
|
msg_set_size(hdr, sz);
|
|
if (unlikely(sz > max_size)) {
|
|
*buf = NULL;
|
|
return dsz;
|
|
}
|
|
|
|
*buf = tipc_buf_acquire(sz);
|
|
if (!(*buf))
|
|
return -ENOMEM;
|
|
skb_copy_to_linear_data(*buf, hdr, hsz);
|
|
for (res = 1, cnt = 0; res && (cnt < num_sect); cnt++) {
|
|
if (likely(usrmem))
|
|
res = !copy_from_user((*buf)->data + pos,
|
|
msg_sect[cnt].iov_base,
|
|
msg_sect[cnt].iov_len);
|
|
else
|
|
skb_copy_to_linear_data_offset(*buf, pos,
|
|
msg_sect[cnt].iov_base,
|
|
msg_sect[cnt].iov_len);
|
|
pos += msg_sect[cnt].iov_len;
|
|
}
|
|
if (likely(res))
|
|
return dsz;
|
|
|
|
buf_discard(*buf);
|
|
*buf = NULL;
|
|
return -EFAULT;
|
|
}
|
|
|
|
#ifdef CONFIG_TIPC_DEBUG
|
|
|
|
void tipc_msg_dbg(struct print_buf *buf, struct tipc_msg *msg, const char *str)
|
|
{
|
|
u32 usr = msg_user(msg);
|
|
tipc_printf(buf, KERN_DEBUG);
|
|
tipc_printf(buf, str);
|
|
|
|
switch (usr) {
|
|
case MSG_BUNDLER:
|
|
tipc_printf(buf, "BNDL::");
|
|
tipc_printf(buf, "MSGS(%u):", msg_msgcnt(msg));
|
|
break;
|
|
case BCAST_PROTOCOL:
|
|
tipc_printf(buf, "BCASTP::");
|
|
break;
|
|
case MSG_FRAGMENTER:
|
|
tipc_printf(buf, "FRAGM::");
|
|
switch (msg_type(msg)) {
|
|
case FIRST_FRAGMENT:
|
|
tipc_printf(buf, "FIRST:");
|
|
break;
|
|
case FRAGMENT:
|
|
tipc_printf(buf, "BODY:");
|
|
break;
|
|
case LAST_FRAGMENT:
|
|
tipc_printf(buf, "LAST:");
|
|
break;
|
|
default:
|
|
tipc_printf(buf, "UNKNOWN:%x", msg_type(msg));
|
|
|
|
}
|
|
tipc_printf(buf, "NO(%u/%u):", msg_long_msgno(msg),
|
|
msg_fragm_no(msg));
|
|
break;
|
|
case TIPC_LOW_IMPORTANCE:
|
|
case TIPC_MEDIUM_IMPORTANCE:
|
|
case TIPC_HIGH_IMPORTANCE:
|
|
case TIPC_CRITICAL_IMPORTANCE:
|
|
tipc_printf(buf, "DAT%u:", msg_user(msg));
|
|
if (msg_short(msg)) {
|
|
tipc_printf(buf, "CON:");
|
|
break;
|
|
}
|
|
switch (msg_type(msg)) {
|
|
case TIPC_CONN_MSG:
|
|
tipc_printf(buf, "CON:");
|
|
break;
|
|
case TIPC_MCAST_MSG:
|
|
tipc_printf(buf, "MCST:");
|
|
break;
|
|
case TIPC_NAMED_MSG:
|
|
tipc_printf(buf, "NAM:");
|
|
break;
|
|
case TIPC_DIRECT_MSG:
|
|
tipc_printf(buf, "DIR:");
|
|
break;
|
|
default:
|
|
tipc_printf(buf, "UNKNOWN TYPE %u", msg_type(msg));
|
|
}
|
|
if (msg_routed(msg) && !msg_non_seq(msg))
|
|
tipc_printf(buf, "ROUT:");
|
|
if (msg_reroute_cnt(msg))
|
|
tipc_printf(buf, "REROUTED(%u):",
|
|
msg_reroute_cnt(msg));
|
|
break;
|
|
case NAME_DISTRIBUTOR:
|
|
tipc_printf(buf, "NMD::");
|
|
switch (msg_type(msg)) {
|
|
case PUBLICATION:
|
|
tipc_printf(buf, "PUBL(%u):", (msg_size(msg) - msg_hdr_sz(msg)) / 20); /* Items */
|
|
break;
|
|
case WITHDRAWAL:
|
|
tipc_printf(buf, "WDRW:");
|
|
break;
|
|
default:
|
|
tipc_printf(buf, "UNKNOWN:%x", msg_type(msg));
|
|
}
|
|
if (msg_routed(msg))
|
|
tipc_printf(buf, "ROUT:");
|
|
if (msg_reroute_cnt(msg))
|
|
tipc_printf(buf, "REROUTED(%u):",
|
|
msg_reroute_cnt(msg));
|
|
break;
|
|
case CONN_MANAGER:
|
|
tipc_printf(buf, "CONN_MNG:");
|
|
switch (msg_type(msg)) {
|
|
case CONN_PROBE:
|
|
tipc_printf(buf, "PROBE:");
|
|
break;
|
|
case CONN_PROBE_REPLY:
|
|
tipc_printf(buf, "PROBE_REPLY:");
|
|
break;
|
|
case CONN_ACK:
|
|
tipc_printf(buf, "CONN_ACK:");
|
|
tipc_printf(buf, "ACK(%u):", msg_msgcnt(msg));
|
|
break;
|
|
default:
|
|
tipc_printf(buf, "UNKNOWN TYPE:%x", msg_type(msg));
|
|
}
|
|
if (msg_routed(msg))
|
|
tipc_printf(buf, "ROUT:");
|
|
if (msg_reroute_cnt(msg))
|
|
tipc_printf(buf, "REROUTED(%u):", msg_reroute_cnt(msg));
|
|
break;
|
|
case LINK_PROTOCOL:
|
|
tipc_printf(buf, "PROT:TIM(%u):", msg_timestamp(msg));
|
|
switch (msg_type(msg)) {
|
|
case STATE_MSG:
|
|
tipc_printf(buf, "STATE:");
|
|
tipc_printf(buf, "%s:", msg_probe(msg) ? "PRB" : "");
|
|
tipc_printf(buf, "NXS(%u):", msg_next_sent(msg));
|
|
tipc_printf(buf, "GAP(%u):", msg_seq_gap(msg));
|
|
tipc_printf(buf, "LSTBC(%u):", msg_last_bcast(msg));
|
|
break;
|
|
case RESET_MSG:
|
|
tipc_printf(buf, "RESET:");
|
|
if (msg_size(msg) != msg_hdr_sz(msg))
|
|
tipc_printf(buf, "BEAR:%s:", msg_data(msg));
|
|
break;
|
|
case ACTIVATE_MSG:
|
|
tipc_printf(buf, "ACTIVATE:");
|
|
break;
|
|
default:
|
|
tipc_printf(buf, "UNKNOWN TYPE:%x", msg_type(msg));
|
|
}
|
|
tipc_printf(buf, "PLANE(%c):", msg_net_plane(msg));
|
|
tipc_printf(buf, "SESS(%u):", msg_session(msg));
|
|
break;
|
|
case CHANGEOVER_PROTOCOL:
|
|
tipc_printf(buf, "TUNL:");
|
|
switch (msg_type(msg)) {
|
|
case DUPLICATE_MSG:
|
|
tipc_printf(buf, "DUPL:");
|
|
break;
|
|
case ORIGINAL_MSG:
|
|
tipc_printf(buf, "ORIG:");
|
|
tipc_printf(buf, "EXP(%u)", msg_msgcnt(msg));
|
|
break;
|
|
default:
|
|
tipc_printf(buf, "UNKNOWN TYPE:%x", msg_type(msg));
|
|
}
|
|
break;
|
|
case ROUTE_DISTRIBUTOR:
|
|
tipc_printf(buf, "ROUTING_MNG:");
|
|
switch (msg_type(msg)) {
|
|
case EXT_ROUTING_TABLE:
|
|
tipc_printf(buf, "EXT_TBL:");
|
|
tipc_printf(buf, "TO:%x:", msg_remote_node(msg));
|
|
break;
|
|
case LOCAL_ROUTING_TABLE:
|
|
tipc_printf(buf, "LOCAL_TBL:");
|
|
tipc_printf(buf, "TO:%x:", msg_remote_node(msg));
|
|
break;
|
|
case SLAVE_ROUTING_TABLE:
|
|
tipc_printf(buf, "DP_TBL:");
|
|
tipc_printf(buf, "TO:%x:", msg_remote_node(msg));
|
|
break;
|
|
case ROUTE_ADDITION:
|
|
tipc_printf(buf, "ADD:");
|
|
tipc_printf(buf, "TO:%x:", msg_remote_node(msg));
|
|
break;
|
|
case ROUTE_REMOVAL:
|
|
tipc_printf(buf, "REMOVE:");
|
|
tipc_printf(buf, "TO:%x:", msg_remote_node(msg));
|
|
break;
|
|
default:
|
|
tipc_printf(buf, "UNKNOWN TYPE:%x", msg_type(msg));
|
|
}
|
|
break;
|
|
case LINK_CONFIG:
|
|
tipc_printf(buf, "CFG:");
|
|
switch (msg_type(msg)) {
|
|
case DSC_REQ_MSG:
|
|
tipc_printf(buf, "DSC_REQ:");
|
|
break;
|
|
case DSC_RESP_MSG:
|
|
tipc_printf(buf, "DSC_RESP:");
|
|
break;
|
|
default:
|
|
tipc_printf(buf, "UNKNOWN TYPE:%x:", msg_type(msg));
|
|
break;
|
|
}
|
|
break;
|
|
default:
|
|
tipc_printf(buf, "UNKNOWN USER:");
|
|
}
|
|
|
|
switch (usr) {
|
|
case CONN_MANAGER:
|
|
case TIPC_LOW_IMPORTANCE:
|
|
case TIPC_MEDIUM_IMPORTANCE:
|
|
case TIPC_HIGH_IMPORTANCE:
|
|
case TIPC_CRITICAL_IMPORTANCE:
|
|
switch (msg_errcode(msg)) {
|
|
case TIPC_OK:
|
|
break;
|
|
case TIPC_ERR_NO_NAME:
|
|
tipc_printf(buf, "NO_NAME:");
|
|
break;
|
|
case TIPC_ERR_NO_PORT:
|
|
tipc_printf(buf, "NO_PORT:");
|
|
break;
|
|
case TIPC_ERR_NO_NODE:
|
|
tipc_printf(buf, "NO_PROC:");
|
|
break;
|
|
case TIPC_ERR_OVERLOAD:
|
|
tipc_printf(buf, "OVERLOAD:");
|
|
break;
|
|
case TIPC_CONN_SHUTDOWN:
|
|
tipc_printf(buf, "SHUTDOWN:");
|
|
break;
|
|
default:
|
|
tipc_printf(buf, "UNKNOWN ERROR(%x):",
|
|
msg_errcode(msg));
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
|
|
tipc_printf(buf, "HZ(%u):", msg_hdr_sz(msg));
|
|
tipc_printf(buf, "SZ(%u):", msg_size(msg));
|
|
tipc_printf(buf, "SQNO(%u):", msg_seqno(msg));
|
|
|
|
if (msg_non_seq(msg))
|
|
tipc_printf(buf, "NOSEQ:");
|
|
else
|
|
tipc_printf(buf, "ACK(%u):", msg_ack(msg));
|
|
tipc_printf(buf, "BACK(%u):", msg_bcast_ack(msg));
|
|
tipc_printf(buf, "PRND(%x)", msg_prevnode(msg));
|
|
|
|
if (msg_isdata(msg)) {
|
|
if (msg_named(msg)) {
|
|
tipc_printf(buf, "NTYP(%u):", msg_nametype(msg));
|
|
tipc_printf(buf, "NINST(%u)", msg_nameinst(msg));
|
|
}
|
|
}
|
|
|
|
if ((usr != LINK_PROTOCOL) && (usr != LINK_CONFIG) &&
|
|
(usr != MSG_BUNDLER)) {
|
|
if (!msg_short(msg)) {
|
|
tipc_printf(buf, ":ORIG(%x:%u):",
|
|
msg_orignode(msg), msg_origport(msg));
|
|
tipc_printf(buf, ":DEST(%x:%u):",
|
|
msg_destnode(msg), msg_destport(msg));
|
|
} else {
|
|
tipc_printf(buf, ":OPRT(%u):", msg_origport(msg));
|
|
tipc_printf(buf, ":DPRT(%u):", msg_destport(msg));
|
|
}
|
|
if (msg_routed(msg) && !msg_non_seq(msg))
|
|
tipc_printf(buf, ":TSEQN(%u)", msg_transp_seqno(msg));
|
|
}
|
|
if (msg_user(msg) == NAME_DISTRIBUTOR) {
|
|
tipc_printf(buf, ":ONOD(%x):", msg_orignode(msg));
|
|
tipc_printf(buf, ":DNOD(%x):", msg_destnode(msg));
|
|
if (msg_routed(msg))
|
|
tipc_printf(buf, ":CSEQN(%u)", msg_transp_seqno(msg));
|
|
}
|
|
|
|
if (msg_user(msg) == LINK_CONFIG) {
|
|
u32 *raw = (u32 *)msg;
|
|
struct tipc_media_addr *orig = (struct tipc_media_addr *)&raw[5];
|
|
tipc_printf(buf, ":REQL(%u):", msg_req_links(msg));
|
|
tipc_printf(buf, ":DDOM(%x):", msg_dest_domain(msg));
|
|
tipc_printf(buf, ":NETID(%u):", msg_bc_netid(msg));
|
|
tipc_media_addr_printf(buf, orig);
|
|
}
|
|
if (msg_user(msg) == BCAST_PROTOCOL) {
|
|
tipc_printf(buf, "BCNACK:AFTER(%u):", msg_bcgap_after(msg));
|
|
tipc_printf(buf, "TO(%u):", msg_bcgap_to(msg));
|
|
}
|
|
tipc_printf(buf, "\n");
|
|
if ((usr == CHANGEOVER_PROTOCOL) && (msg_msgcnt(msg)))
|
|
tipc_msg_dbg(buf, msg_get_wrapped(msg), " /");
|
|
if ((usr == MSG_FRAGMENTER) && (msg_type(msg) == FIRST_FRAGMENT))
|
|
tipc_msg_dbg(buf, msg_get_wrapped(msg), " /");
|
|
}
|
|
|
|
#endif
|