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Diffstat (limited to 'release/src/router/busybox/networking/vconfig.c')
-rw-r--r--release/src/router/busybox/networking/vconfig.c112
1 files changed, 62 insertions, 50 deletions
diff --git a/release/src/router/busybox/networking/vconfig.c b/release/src/router/busybox/networking/vconfig.c
index d58c375f..00379fc2 100644
--- a/release/src/router/busybox/networking/vconfig.c
+++ b/release/src/router/busybox/networking/vconfig.c
@@ -4,51 +4,67 @@
*
* Copyright (C) 2001 Manuel Novoa III <mjn3@codepoet.org>
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
*/
/* BB_AUDIT SUSv3 N/A */
-#include <stdlib.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <sys/ioctl.h>
+#include "libbb.h"
#include <net/if.h>
-#include <linux/if_vlan.h>
-#include <string.h>
-#include <limits.h>
-#include "busybox.h"
+
+/* Stuff from linux/if_vlan.h, kernel version 2.4.23 */
+enum vlan_ioctl_cmds {
+ ADD_VLAN_CMD,
+ DEL_VLAN_CMD,
+ SET_VLAN_INGRESS_PRIORITY_CMD,
+ SET_VLAN_EGRESS_PRIORITY_CMD,
+ GET_VLAN_INGRESS_PRIORITY_CMD,
+ GET_VLAN_EGRESS_PRIORITY_CMD,
+ SET_VLAN_NAME_TYPE_CMD,
+ SET_VLAN_FLAG_CMD
+};
+enum vlan_name_types {
+ VLAN_NAME_TYPE_PLUS_VID, /* Name will look like: vlan0005 */
+ VLAN_NAME_TYPE_RAW_PLUS_VID, /* name will look like: eth1.0005 */
+ VLAN_NAME_TYPE_PLUS_VID_NO_PAD, /* Name will look like: vlan5 */
+ VLAN_NAME_TYPE_RAW_PLUS_VID_NO_PAD, /* Name will look like: eth0.5 */
+ VLAN_NAME_TYPE_HIGHEST
+};
+
+struct vlan_ioctl_args {
+ int cmd; /* Should be one of the vlan_ioctl_cmds enum above. */
+ char device1[24];
+
+ union {
+ char device2[24];
+ int VID;
+ unsigned int skb_priority;
+ unsigned int name_type;
+ unsigned int bind_type;
+ unsigned int flag; /* Matches vlan_dev_info flags */
+ } u;
+
+ short vlan_qos;
+};
#define VLAN_GROUP_ARRAY_LEN 4096
-#define SIOCSIFVLAN 0x8983 /* Set 802.1Q VLAN options */
+#define SIOCSIFVLAN 0x8983 /* Set 802.1Q VLAN options */
-/* On entry, table points to the length of the current string plus
- * nul terminator plus data length for the subsequent entry. The
- * return value is the last data entry for the matching string. */
+/* On entry, table points to the length of the current string
+ * plus NUL terminator plus data length for the subsequent entry.
+ * The return value is the last data entry for the matching string. */
static const char *xfind_str(const char *table, const char *str)
{
while (strcasecmp(str, table+1) != 0) {
- if (!*(table += table[0])) {
+ table += table[0];
+ if (!*table) {
bb_show_usage();
}
}
return table - 1;
}
-static const char cmds[] = {
+static const char cmds[] ALIGN1 = {
4, ADD_VLAN_CMD, 7,
'a', 'd', 'd', 0,
3, DEL_VLAN_CMD, 7,
@@ -57,7 +73,7 @@ static const char cmds[] = {
's', 'e', 't', '_',
'n', 'a', 'm', 'e', '_',
't', 'y', 'p', 'e', 0,
- 4, SET_VLAN_FLAG_CMD, 12,
+ 5, SET_VLAN_FLAG_CMD, 12,
's', 'e', 't', '_',
'f', 'l', 'a', 'g', 0,
5, SET_VLAN_EGRESS_PRIORITY_CMD, 18,
@@ -70,13 +86,13 @@ static const char cmds[] = {
'm', 'a', 'p', 0,
};
-static const char name_types[] = {
+static const char name_types[] ALIGN1 = {
VLAN_NAME_TYPE_PLUS_VID, 16,
'V', 'L', 'A', 'N',
'_', 'P', 'L', 'U', 'S', '_', 'V', 'I', 'D',
0,
VLAN_NAME_TYPE_PLUS_VID_NO_PAD, 22,
- 'V', 'L', 'A', 'N',
+ 'V', 'L', 'A', 'N',
'_', 'P', 'L', 'U', 'S', '_', 'V', 'I', 'D',
'_', 'N', 'O', '_', 'P', 'A', 'D', 0,
VLAN_NAME_TYPE_RAW_PLUS_VID, 15,
@@ -89,8 +105,9 @@ static const char name_types[] = {
'_', 'N', 'O', '_', 'P', 'A', 'D', 0,
};
-static const char conf_file_name[] = "/proc/net/vlan/config";
+static const char conf_file_name[] ALIGN1 = "/proc/net/vlan/config";
+int vconfig_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int vconfig_main(int argc, char **argv)
{
struct vlan_ioctl_args ifr;
@@ -102,11 +119,10 @@ int vconfig_main(int argc, char **argv)
}
/* Don't bother closing the filedes. It will be closed on cleanup. */
- if (open(conf_file_name, O_RDONLY) < 0) { /* Is 802.1q is present? */
- bb_perror_msg_and_die("open %s", conf_file_name);
- }
+ /* Will die if 802.1q is not present */
+ xopen(conf_file_name, O_RDONLY);
- memset(&ifr, 0, sizeof(struct vlan_ioctl_args));
+ memset(&ifr, 0, sizeof(ifr));
++argv;
p = xfind_str(cmds+2, *argv);
@@ -118,10 +134,7 @@ int vconfig_main(int argc, char **argv)
if (ifr.cmd == SET_VLAN_NAME_TYPE_CMD) { /* set_name_type */
ifr.u.name_type = *xfind_str(name_types+1, argv[1]);
} else {
- if (strlen(argv[1]) >= IF_NAMESIZE) {
- bb_error_msg_and_die("if_name >= %d chars\n", IF_NAMESIZE);
- }
- strcpy(ifr.device1, argv[1]);
+ strncpy_IFNAMSIZ(ifr.device1, argv[1]);
p = argv[2];
/* I suppose one could try to combine some of the function calls below,
@@ -130,21 +143,20 @@ int vconfig_main(int argc, char **argv)
* doing so wouldn't save that much space and would also make maintainence
* more of a pain. */
if (ifr.cmd == SET_VLAN_FLAG_CMD) { /* set_flag */
- ifr.u.flag = bb_xgetularg10_bnd(p, 0, 1);
+ ifr.u.flag = xatoul_range(p, 0, 1);
+ /* DM: in order to set reorder header, qos must be set */
+ ifr.vlan_qos = xatoul_range(argv[3], 0, 7);
} else if (ifr.cmd == ADD_VLAN_CMD) { /* add */
- ifr.u.VID = bb_xgetularg10_bnd(p, 0, VLAN_GROUP_ARRAY_LEN-1);
+ ifr.u.VID = xatoul_range(p, 0, VLAN_GROUP_ARRAY_LEN-1);
} else if (ifr.cmd != DEL_VLAN_CMD) { /* set_{egress|ingress}_map */
- ifr.u.skb_priority = bb_xgetularg10_bnd(p, 0, ULONG_MAX);
- ifr.vlan_qos = bb_xgetularg10_bnd(argv[3], 0, 7);
+ ifr.u.skb_priority = xatou(p);
+ ifr.vlan_qos = xatoul_range(argv[3], 0, 7);
}
}
- if (((fd = socket(AF_INET, SOCK_STREAM, 0)) < 0)
- || (ioctl(fd, SIOCSIFVLAN, &ifr) < 0)
- ) {
- bb_perror_msg_and_die("socket or ioctl error for %s", *argv);
- }
+ fd = xsocket(AF_INET, SOCK_STREAM, 0);
+ ioctl_or_perror_and_die(fd, SIOCSIFVLAN, &ifr,
+ "ioctl error for %s", *argv);
return 0;
}
-