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linux-user: add ioctl(SIOCGIWNAME, ...) support.

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Allow to run properly following program from linux-user:

/* cc -o wifi wifi.c */

 #include <stdio.h>
 #include <sys/ioctl.h>
 #include <sys/types.h>
 #include <sys/socket.h>
 #include <linux/wireless.h>
 #include <netinet/in.h>
 #include <arpa/inet.h>
 #include <string.h>

int main(int argc, char **argv)
{
    int ret;
    struct ifreq req;
    struct sockaddr_in *addr;
    int s;

    if (argc != 2) {
        fprintf(stderr, "Need an interface name (like wlan0)\n");
	return 1;
    }

    s = socket( AF_INET, SOCK_DGRAM, 0 );
    if (s < 0) {
        perror("Cannot open socket");
        return 1;
    }
    strncpy(req.ifr_name, argv[1], sizeof(req.ifr_name));
    ret = ioctl( s, SIOCGIWNAME, &req );
    if (ret < 0) {
	fprintf(stderr, "No wireless extension\n");
        return 1;
    }

    printf("%s\n", req.ifr_name);
    printf("%s\n", req.ifr_newname);
    return 0;
}

$ ./wifi eth0
No wireless extension

$ ./wifi wlan0
wlan0
IEEE 802.11bg

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
This commit is contained in:
Laurent Vivier 2011-03-30 01:35:23 +02:00 committed by Riku Voipio
parent 059c2f2cd7
commit 86fcd94632
3 changed files with 5 additions and 1 deletions
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1
linux-user/ioctls.h
View File

@ -122,6 +122,7 @@
IOCTL(SIOCDRARP, IOC_W, MK_PTR(MK_STRUCT(STRUCT_arpreq)))
IOCTL(SIOCSRARP, IOC_W, MK_PTR(MK_STRUCT(STRUCT_arpreq)))
IOCTL(SIOCGRARP, IOC_R, MK_PTR(MK_STRUCT(STRUCT_arpreq)))
IOCTL(SIOCGIWNAME, IOC_W | IOC_R, MK_PTR(MK_STRUCT(STRUCT_char_ifreq)))
IOCTL(CDROMPAUSE, 0, TYPE_NULL)
IOCTL(CDROMSTART, 0, TYPE_NULL)

2
linux-user/syscall.c
View File

@ -59,7 +59,7 @@ int __clone2(int (*fn)(void *), void *child_stack_base,
//#include <sys/user.h>
#include <netinet/ip.h>
#include <netinet/tcp.h>
#include <net/if.h>
#include <linux/wireless.h>
#include <qemu-common.h>
#ifdef TARGET_GPROF
#include <sys/gmon.h>

3
linux-user/syscall_defs.h
View File

@ -765,6 +765,9 @@ struct target_pollfd {
#define TARGET_SIOCADDDLCI 0x8980 /* Create new DLCI device */
#define TARGET_SIOCDELDLCI 0x8981 /* Delete DLCI device */
/* From <linux/wireless.h> */
#define TARGET_SIOCGIWNAME 0x8B01 /* get name == wireless protocol */
/* From <linux/fs.h> */