* Laszlo Valko <valko@linux.karinthy.hu> 990223: address label must be zero terminated
*/
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <syslog.h>
-#include <fcntl.h>
-#include <sys/ioctl.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-#include <string.h>
+
#include <fnmatch.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
-#include <linux/netdevice.h>
-#include <linux/if_arp.h>
-#include <linux/sockios.h>
+#include <arpa/inet.h>
+
+#include <net/if.h>
+#include <net/if_arp.h>
#include "rt_names.h"
#include "utils.h"
-#include "ll_map.h"
-#include "ip_common.h"
-#include "busybox.h"
+#include "libbb.h"
static struct
{
int flags, flagmask;
int up;
char *label;
+ int flushed;
+ char *flushb;
+ int flushp;
+ int flushe;
struct rtnl_handle *rth;
} filter;
-static int do_link;
-
void print_link_flags(FILE *fp, unsigned flags, unsigned mdown)
{
fprintf(fp, "<");
fprintf(fp, "> ");
}
-void print_queuelen(char *name)
+static void print_queuelen(char *name)
{
struct ifreq ifr;
int s;
printf("qlen %d", ifr.ifr_qlen);
}
-int print_linkinfo(struct sockaddr_nl *who, struct nlmsghdr *n, void *arg)
+static int print_linkinfo(struct sockaddr_nl *who, struct nlmsghdr *n, void *arg)
{
FILE *fp = (FILE*)arg;
struct ifinfomsg *ifi = NLMSG_DATA(n);
return 0;
}
-int print_addrinfo(struct sockaddr_nl *who, struct nlmsghdr *n, void *arg)
+static int flush_update(void)
+{
+ if (rtnl_send(filter.rth, filter.flushb, filter.flushp) < 0) {
+ perror("Failed to send flush request\n");
+ return -1;
+ }
+ filter.flushp = 0;
+ return 0;
+}
+
+static int print_addrinfo(struct sockaddr_nl *who, struct nlmsghdr *n, void *arg)
{
FILE *fp = (FILE*)arg;
struct ifaddrmsg *ifa = NLMSG_DATA(n);
return -1;
}
+ if (filter.flushb && n->nlmsg_type != RTM_NEWADDR)
+ return 0;
+
memset(rta_tb, 0, sizeof(rta_tb));
parse_rtattr(rta_tb, IFA_MAX, IFA_RTA(ifa), n->nlmsg_len - NLMSG_LENGTH(sizeof(*ifa)));
}
}
+ if (filter.flushb) {
+ struct nlmsghdr *fn;
+ if (NLMSG_ALIGN(filter.flushp) + n->nlmsg_len > filter.flushe) {
+ if (flush_update())
+ return -1;
+ }
+ fn = (struct nlmsghdr*)(filter.flushb + NLMSG_ALIGN(filter.flushp));
+ memcpy(fn, n, n->nlmsg_len);
+ fn->nlmsg_type = RTM_DELADDR;
+ fn->nlmsg_flags = NLM_F_REQUEST;
+ fn->nlmsg_seq = ++filter.rth->seq;
+ filter.flushp = (((char*)fn) + n->nlmsg_len) - filter.flushb;
+ filter.flushed++;
+ return 0;
+ }
+
if (n->nlmsg_type == RTM_DELADDR)
fprintf(fp, "Deleted ");
struct nlmsghdr h;
};
-int print_selected_addrinfo(int ifindex, struct nlmsg_list *ainfo, FILE *fp)
+static int print_selected_addrinfo(int ifindex, struct nlmsg_list *ainfo, FILE *fp)
{
for ( ;ainfo ; ainfo = ainfo->next) {
struct nlmsghdr *n = &ainfo->h;
}
-int store_nlmsg(struct sockaddr_nl *who, struct nlmsghdr *n, void *arg)
+static int store_nlmsg(struct sockaddr_nl *who, struct nlmsghdr *n, void *arg)
{
struct nlmsg_list **linfo = (struct nlmsg_list**)arg;
struct nlmsg_list *h;
return 0;
}
-int ipaddr_list(int argc, char **argv)
+static void ipaddr_reset_filter(int _oneline)
{
+ memset(&filter, 0, sizeof(filter));
+ filter.oneline = _oneline;
+}
+
+extern int ipaddr_list_or_flush(int argc, char **argv, int flush)
+{
+ const char *option[] = { "to", "scope", "up", "label", "dev", 0 };
struct nlmsg_list *linfo = NULL;
struct nlmsg_list *ainfo = NULL;
struct nlmsg_list *l;
if (filter.family == AF_UNSPEC)
filter.family = preferred_family;
+ if (flush) {
+ if (argc <= 0) {
+ fprintf(stderr, "Flush requires arguments.\n");
+ return -1;
+ }
+ if (filter.family == AF_PACKET) {
+ fprintf(stderr, "Cannot flush link addresses.\n");
+ return -1;
+ }
+ }
+
while (argc > 0) {
- if (strcmp(*argv, "to") == 0) {
- NEXT_ARG();
- get_prefix(&filter.pfx, *argv, filter.family);
- if (filter.family == AF_UNSPEC)
- filter.family = filter.pfx.family;
- } else if (strcmp(*argv, "scope") == 0) {
- int scope = 0;
- NEXT_ARG();
- filter.scopemask = -1;
- if (rtnl_rtscope_a2n(&scope, *argv)) {
- if (strcmp(*argv, "all") != 0)
- invarg("invalid \"scope\"\n", *argv);
- scope = RT_SCOPE_NOWHERE;
- filter.scopemask = 0;
- }
- filter.scope = scope;
- } else if (strcmp(*argv, "up") == 0) {
- filter.up = 1;
- } else if (strcmp(*argv, "label") == 0) {
- NEXT_ARG();
- filter.label = *argv;
- } else {
- if (strcmp(*argv, "dev") == 0) {
+ const unsigned short option_num = compare_string_array(option, *argv);
+ switch (option_num) {
+ case 0: /* to */
+ NEXT_ARG();
+ get_prefix(&filter.pfx, *argv, filter.family);
+ if (filter.family == AF_UNSPEC) {
+ filter.family = filter.pfx.family;
+ }
+ break;
+ case 1: /* scope */
+ {
+ int scope = 0;
NEXT_ARG();
+ filter.scopemask = -1;
+ if (rtnl_rtscope_a2n(&scope, *argv)) {
+ if (strcmp(*argv, "all") != 0) {
+ invarg("invalid \"scope\"\n", *argv);
+ }
+ scope = RT_SCOPE_NOWHERE;
+ filter.scopemask = 0;
+ }
+ filter.scope = scope;
+ break;
}
- if (filter_dev)
- duparg2("dev", *argv);
- filter_dev = *argv;
+ case 2: /* up */
+ filter.up = 1;
+ break;
+ case 3: /* label */
+ NEXT_ARG();
+ filter.label = *argv;
+ break;
+ case 4: /* dev */
+ NEXT_ARG();
+ default:
+ if (filter_dev) {
+ duparg2("dev", *argv);
+ }
+ filter_dev = *argv;
}
- argv++; argc--;
+ argv++;
+ argc--;
}
if (rtnl_open(&rth, 0) < 0)
}
}
+ if (flush) {
+ int round = 0;
+ char flushb[4096-512];
+
+ filter.flushb = flushb;
+ filter.flushp = 0;
+ filter.flushe = sizeof(flushb);
+ filter.rth = &rth;
+
+ for (;;) {
+ if (rtnl_wilddump_request(&rth, filter.family, RTM_GETADDR) < 0) {
+ perror("Cannot send dump request");
+ exit(1);
+ }
+ filter.flushed = 0;
+ if (rtnl_dump_filter(&rth, print_addrinfo, stdout, NULL, NULL) < 0) {
+ fprintf(stderr, "Flush terminated\n");
+ exit(1);
+ }
+ if (filter.flushed == 0) {
+ if (round == 0)
+ fprintf(stderr, "Nothing to flush.\n");
+ fflush(stdout);
+ return 0;
+ }
+ round++;
+ if (flush_update() < 0)
+ exit(1);
+ }
+ }
+
if (filter.family != AF_PACKET) {
if (rtnl_wilddump_request(&rth, filter.family, RTM_GETADDR) < 0) {
perror_msg_and_die("Cannot send dump request");
exit(0);
}
-int ipaddr_list_link(int argc, char **argv)
-{
- preferred_family = AF_PACKET;
- do_link = 1;
- return ipaddr_list(argc, argv);
-}
-
-void ipaddr_reset_filter(int _oneline)
-{
- memset(&filter, 0, sizeof(filter));
- filter.oneline = _oneline;
-}
-
-int default_scope(inet_prefix *lcl)
+static int default_scope(inet_prefix *lcl)
{
if (lcl->family == AF_INET) {
if (lcl->bytelen >= 1 && *(__u8*)&lcl->data == 127)
return 0;
}
-int ipaddr_modify(int cmd, int argc, char **argv)
+static int ipaddr_modify(int cmd, int argc, char **argv)
{
+ const char *option[] = { "peer", "remote", "broadcast", "brd",
+ "anycast", "scope", "dev", "label", "local", 0 };
struct rtnl_handle rth;
struct {
struct nlmsghdr n;
req.ifa.ifa_family = preferred_family;
while (argc > 0) {
- if (strcmp(*argv, "peer") == 0 ||
- strcmp(*argv, "remote") == 0) {
- NEXT_ARG();
-
- if (peer_len)
- duparg("peer", *argv);
- get_prefix(&peer, *argv, req.ifa.ifa_family);
- peer_len = peer.bytelen;
- if (req.ifa.ifa_family == AF_UNSPEC)
- req.ifa.ifa_family = peer.family;
- addattr_l(&req.n, sizeof(req), IFA_ADDRESS, &peer.data, peer.bytelen);
- req.ifa.ifa_prefixlen = peer.bitlen;
- } else if (matches(*argv, "broadcast") == 0 ||
- strcmp(*argv, "brd") == 0) {
- inet_prefix addr;
- NEXT_ARG();
- if (brd_len)
- duparg("broadcast", *argv);
- if (strcmp(*argv, "+") == 0)
- brd_len = -1;
- else if (strcmp(*argv, "-") == 0)
- brd_len = -2;
- else {
+ const unsigned short option_num = compare_string_array(option, *argv);
+ switch (option_num) {
+ case 0: /* peer */
+ case 1: /* remote */
+ NEXT_ARG();
+
+ if (peer_len) {
+ duparg("peer", *argv);
+ }
+ get_prefix(&peer, *argv, req.ifa.ifa_family);
+ peer_len = peer.bytelen;
+ if (req.ifa.ifa_family == AF_UNSPEC) {
+ req.ifa.ifa_family = peer.family;
+ }
+ addattr_l(&req.n, sizeof(req), IFA_ADDRESS, &peer.data, peer.bytelen);
+ req.ifa.ifa_prefixlen = peer.bitlen;
+ break;
+ case 2: /* broadcast */
+ case 3: /* brd */
+ {
+ inet_prefix addr;
+ NEXT_ARG();
+ if (brd_len) {
+ duparg("broadcast", *argv);
+ }
+ if (strcmp(*argv, "+") == 0) {
+ brd_len = -1;
+ }
+ else if (strcmp(*argv, "-") == 0) {
+ brd_len = -2;
+ } else {
+ get_addr(&addr, *argv, req.ifa.ifa_family);
+ if (req.ifa.ifa_family == AF_UNSPEC)
+ req.ifa.ifa_family = addr.family;
+ addattr_l(&req.n, sizeof(req), IFA_BROADCAST, &addr.data, addr.bytelen);
+ brd_len = addr.bytelen;
+ }
+ break;
+ }
+ case 4: /* anycast */
+ {
+ inet_prefix addr;
+ NEXT_ARG();
+ if (any_len) {
+ duparg("anycast", *argv);
+ }
get_addr(&addr, *argv, req.ifa.ifa_family);
- if (req.ifa.ifa_family == AF_UNSPEC)
+ if (req.ifa.ifa_family == AF_UNSPEC) {
req.ifa.ifa_family = addr.family;
- addattr_l(&req.n, sizeof(req), IFA_BROADCAST, &addr.data, addr.bytelen);
- brd_len = addr.bytelen;
+ }
+ addattr_l(&req.n, sizeof(req), IFA_ANYCAST, &addr.data, addr.bytelen);
+ any_len = addr.bytelen;
+ break;
}
- } else if (strcmp(*argv, "anycast") == 0) {
- inet_prefix addr;
- NEXT_ARG();
- if (any_len)
- duparg("anycast", *argv);
- get_addr(&addr, *argv, req.ifa.ifa_family);
- if (req.ifa.ifa_family == AF_UNSPEC)
- req.ifa.ifa_family = addr.family;
- addattr_l(&req.n, sizeof(req), IFA_ANYCAST, &addr.data, addr.bytelen);
- any_len = addr.bytelen;
- } else if (strcmp(*argv, "scope") == 0) {
- int scope = 0;
- NEXT_ARG();
- if (rtnl_rtscope_a2n(&scope, *argv))
- invarg(*argv, "invalid scope value.");
- req.ifa.ifa_scope = scope;
- scoped = 1;
- } else if (strcmp(*argv, "dev") == 0) {
- NEXT_ARG();
- d = *argv;
- } else if (strcmp(*argv, "label") == 0) {
- NEXT_ARG();
- l = *argv;
- addattr_l(&req.n, sizeof(req), IFA_LABEL, l, strlen(l)+1);
- } else {
- if (strcmp(*argv, "local") == 0) {
+ case 5: /* scope */
+ {
+ int scope = 0;
NEXT_ARG();
+ if (rtnl_rtscope_a2n(&scope, *argv)) {
+ invarg(*argv, "invalid scope value.");
+ }
+ req.ifa.ifa_scope = scope;
+ scoped = 1;
+ break;
}
- if (local_len)
- duparg2("local", *argv);
- get_prefix(&lcl, *argv, req.ifa.ifa_family);
- if (req.ifa.ifa_family == AF_UNSPEC)
- req.ifa.ifa_family = lcl.family;
- addattr_l(&req.n, sizeof(req), IFA_LOCAL, &lcl.data, lcl.bytelen);
- local_len = lcl.bytelen;
+ case 6: /* dev */
+ NEXT_ARG();
+ d = *argv;
+ break;
+ case 7: /* label */
+ NEXT_ARG();
+ l = *argv;
+ addattr_l(&req.n, sizeof(req), IFA_LABEL, l, strlen(l)+1);
+ break;
+ case 8: /* local */
+ NEXT_ARG();
+ default:
+ if (local_len) {
+ duparg2("local", *argv);
+ }
+ get_prefix(&lcl, *argv, req.ifa.ifa_family);
+ if (req.ifa.ifa_family == AF_UNSPEC) {
+ req.ifa.ifa_family = lcl.family;
+ }
+ addattr_l(&req.n, sizeof(req), IFA_LOCAL, &lcl.data, lcl.bytelen);
+ local_len = lcl.bytelen;
}
- argc--; argv++;
+ argc--;
+ argv++;
}
+
if (d == NULL) {
error_msg("Not enough information: \"dev\" argument is required.");
return -1;
exit(0);
}
-int do_ipaddr(int argc, char **argv)
+extern int do_ipaddr(int argc, char **argv)
{
- if (argc < 1)
- return ipaddr_list(0, NULL);
- if (matches(*argv, "add") == 0)
- return ipaddr_modify(RTM_NEWADDR, argc-1, argv+1);
- if (matches(*argv, "delete") == 0)
- return ipaddr_modify(RTM_DELADDR, argc-1, argv+1);
- if (matches(*argv, "list") == 0 || matches(*argv, "show") == 0
- || matches(*argv, "lst") == 0)
- return ipaddr_list(argc-1, argv+1);
- error_msg("Command \"%s\" is unknown, try \"ip address help\".", *argv);
- exit(-1);
+ const char *commands[] = { "add", "delete", "list", "show", "lst", "flush", 0 };
+ unsigned short command_num = 2;
+
+ if (*argv) {
+ command_num = compare_string_array(commands, *argv);
+ }
+ switch (command_num) {
+ case 0: /* add */
+ return ipaddr_modify(RTM_NEWADDR, argc-1, argv+1);
+ case 1: /* delete */
+ return ipaddr_modify(RTM_DELADDR, argc-1, argv+1);
+ case 2: /* list */
+ case 3: /* show */
+ case 4: /* lst */
+ return ipaddr_list_or_flush(argc-1, argv+1, 0);
+ case 5: /* flush */
+ return ipaddr_list_or_flush(argc-1, argv+1, 1);
+ }
+ error_msg_and_die("Unknown command %s", *argv);
}
projects / oweals / busybox.git / blobdiff