#include "rt_names.h"
#include "utils.h"
-#include "ip_common.h"
#include "busybox.h"
inet_prefix msrc;
} filter;
-int print_route(struct sockaddr_nl *who, struct nlmsghdr *n, void *arg)
+static int print_route(struct sockaddr_nl *who, struct nlmsghdr *n, void *arg)
{
FILE *fp = (FILE*)arg;
struct rtmsg *r = NLMSG_DATA(n);
}
len -= NLMSG_LENGTH(sizeof(*r));
if (len < 0) {
- fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
+ error_msg("wrong nlmsg len %d", len);
return -1;
}
if (r->rtm_family == AF_INET6) {
if (filter.tb) {
if (filter.tb < 0) {
- if (!(r->rtm_flags&RTM_F_CLONED))
+ if (!(r->rtm_flags&RTM_F_CLONED)) {
return 0;
+ }
} else {
- if (r->rtm_flags&RTM_F_CLONED)
+ if (r->rtm_flags&RTM_F_CLONED) {
return 0;
+ }
if (filter.tb == RT_TABLE_LOCAL) {
- if (r->rtm_type != RTN_LOCAL)
+ if (r->rtm_type != RTN_LOCAL) {
return 0;
+ }
} else if (filter.tb == RT_TABLE_MAIN) {
- if (r->rtm_type == RTN_LOCAL)
+ if (r->rtm_type == RTN_LOCAL) {
return 0;
+ }
} else {
return 0;
}
}
}
} else {
- if (filter.tb > 0 && filter.tb != r->rtm_table)
+ if (filter.tb > 0 && filter.tb != r->rtm_table) {
return 0;
+ }
}
if (filter.rdst.family &&
- (r->rtm_family != filter.rdst.family || filter.rdst.bitlen > r->rtm_dst_len))
+ (r->rtm_family != filter.rdst.family || filter.rdst.bitlen > r->rtm_dst_len)) {
return 0;
+ }
if (filter.mdst.family &&
(r->rtm_family != filter.mdst.family ||
- (filter.mdst.bitlen >= 0 && filter.mdst.bitlen < r->rtm_dst_len)))
+ (filter.mdst.bitlen >= 0 && filter.mdst.bitlen < r->rtm_dst_len))) {
return 0;
+ }
if (filter.rsrc.family &&
- (r->rtm_family != filter.rsrc.family || filter.rsrc.bitlen > r->rtm_src_len))
+ (r->rtm_family != filter.rsrc.family || filter.rsrc.bitlen > r->rtm_src_len)) {
return 0;
+ }
if (filter.msrc.family &&
(r->rtm_family != filter.msrc.family ||
- (filter.msrc.bitlen >= 0 && filter.msrc.bitlen < r->rtm_src_len)))
+ (filter.msrc.bitlen >= 0 && filter.msrc.bitlen < r->rtm_src_len))) {
return 0;
+ }
memset(tb, 0, sizeof(tb));
parse_rtattr(tb, RTA_MAX, RTM_RTA(r), len);
- if (n->nlmsg_type == RTM_DELROUTE)
+ if (n->nlmsg_type == RTM_DELROUTE) {
fprintf(fp, "Deleted ");
- if (r->rtm_type != RTN_UNICAST && !filter.type)
+ }
+ if (r->rtm_type != RTN_UNICAST && !filter.type) {
fprintf(fp, "%s ", rtnl_rtntype_n2a(r->rtm_type, b1, sizeof(b1)));
+ }
if (tb[RTA_DST]) {
if (r->rtm_dst_len != host_len) {
RTA_DATA(tb[RTA_GATEWAY]),
abuf, sizeof(abuf)));
}
- if (tb[RTA_OIF] && filter.oifmask != -1)
+ if (tb[RTA_OIF] && filter.oifmask != -1) {
fprintf(fp, "dev %s ", ll_index_to_name(*(int*)RTA_DATA(tb[RTA_OIF])));
+ }
if (tb[RTA_PREFSRC] && filter.rprefsrc.bitlen != host_len) {
/* Do not use format_host(). It is our local addr
RTA_DATA(tb[RTA_PREFSRC]),
abuf, sizeof(abuf)));
}
- if (tb[RTA_PRIORITY])
+ if (tb[RTA_PRIORITY]) {
fprintf(fp, " metric %d ", *(__u32*)RTA_DATA(tb[RTA_PRIORITY]));
+ }
if (r->rtm_family == AF_INET6) {
struct rta_cacheinfo *ci = NULL;
- if (tb[RTA_CACHEINFO])
+ if (tb[RTA_CACHEINFO]) {
ci = RTA_DATA(tb[RTA_CACHEINFO]);
+ }
if ((r->rtm_flags & RTM_F_CLONED) || (ci && ci->rta_expires)) {
static int hz;
- if (!hz)
+ if (!hz) {
hz = get_hz();
- if (r->rtm_flags & RTM_F_CLONED)
+ }
+ if (r->rtm_flags & RTM_F_CLONED) {
fprintf(fp, "%s cache ", _SL_);
- if (ci->rta_expires)
+ }
+ if (ci->rta_expires) {
fprintf(fp, " expires %dsec", ci->rta_expires/hz);
- if (ci->rta_error != 0)
+ }
+ if (ci->rta_error != 0) {
fprintf(fp, " error %d", ci->rta_error);
+ }
} else if (ci) {
if (ci->rta_error != 0)
fprintf(fp, " error %d", ci->rta_error);
return 0;
}
-int iproute_modify(int cmd, unsigned flags, int argc, char **argv)
+static int iproute_modify(int cmd, unsigned flags, int argc, char **argv)
{
struct rtnl_handle rth;
struct {
inet_prefix addr;
NEXT_ARG();
get_addr(&addr, *argv, req.r.rtm_family);
- if (req.r.rtm_family == AF_UNSPEC)
+ if (req.r.rtm_family == AF_UNSPEC) {
req.r.rtm_family = addr.family;
+ }
addattr_l(&req.n, sizeof(req), RTA_PREFSRC, &addr.data, addr.bytelen);
} else if (strcmp(*argv, "via") == 0) {
inet_prefix addr;
gw_ok = 1;
NEXT_ARG();
get_addr(&addr, *argv, req.r.rtm_family);
- if (req.r.rtm_family == AF_UNSPEC)
+ if (req.r.rtm_family == AF_UNSPEC) {
req.r.rtm_family = addr.family;
+ }
addattr_l(&req.n, sizeof(req), RTA_GATEWAY, &addr.data, addr.bytelen);
} else if (strcmp(*argv, "mtu") == 0) {
unsigned mtu;
mxlock |= (1<<RTAX_MTU);
NEXT_ARG();
}
- if (get_unsigned(&mtu, *argv, 0))
+ if (get_unsigned(&mtu, *argv, 0)) {
invarg("\"mtu\" value is invalid\n", *argv);
+ }
rta_addattr32(mxrta, sizeof(mxbuf), RTAX_MTU, mtu);
} else if (matches(*argv, "protocol") == 0) {
int prot;
type_ok = 1;
}
- if (dst_ok)
+ if (dst_ok) {
duparg2("to", *argv);
+ }
get_prefix(&dst, *argv, req.r.rtm_family);
- if (req.r.rtm_family == AF_UNSPEC)
+ if (req.r.rtm_family == AF_UNSPEC) {
req.r.rtm_family = dst.family;
+ }
req.r.rtm_dst_len = dst.bitlen;
dst_ok = 1;
- if (dst.bytelen)
+ if (dst.bytelen) {
addattr_l(&req.n, sizeof(req), RTA_DST, &dst.data, dst.bytelen);
+ }
}
argc--; argv++;
}
- if (rtnl_open(&rth, 0) < 0)
+ if (rtnl_open(&rth, 0) < 0) {
exit(1);
+ }
if (d) {
int idx;
if (d) {
if ((idx = ll_name_to_index(d)) == 0) {
- fprintf(stderr, "Cannot find device \"%s\"\n", d);
+ error_msg("Cannot find device \"%s\"", d);
return -1;
}
addattr32(&req.n, sizeof(req), RTA_OIF, idx);
}
if (mxrta->rta_len > RTA_LENGTH(0)) {
- if (mxlock)
+ if (mxlock) {
rta_addattr32(mxrta, sizeof(mxbuf), RTAX_LOCK, mxlock);
+ }
addattr_l(&req.n, sizeof(req), RTA_METRICS, RTA_DATA(mxrta), RTA_PAYLOAD(mxrta));
}
- if (req.r.rtm_family == AF_UNSPEC)
+ if (req.r.rtm_family == AF_UNSPEC) {
req.r.rtm_family = AF_INET;
+ }
- if (rtnl_talk(&rth, &req.n, 0, 0, NULL, NULL, NULL) < 0)
+ if (rtnl_talk(&rth, &req.n, 0, 0, NULL, NULL, NULL) < 0) {
exit(2);
+ }
return 0;
}
return sendto(rth->fd, (void*)&req, sizeof(req), 0, (struct sockaddr*)&nladdr, sizeof(nladdr));
}
+static void iproute_reset_filter(void)
+{
+ memset(&filter, 0, sizeof(filter));
+ filter.mdst.bitlen = -1;
+ filter.msrc.bitlen = -1;
+}
+
static int iproute_list(int argc, char **argv)
{
int do_ipv6 = preferred_family;
NEXT_ARG();
filter.protocolmask = -1;
if (rtnl_rtprot_a2n(&prot, *argv)) {
- if (strcmp(*argv, "all") != 0)
+ if (strcmp(*argv, "all") != 0) {
invarg("invalid \"protocol\"\n", *argv);
+ }
prot = 0;
filter.protocolmask = 0;
}
argc--; argv++;
}
- if (do_ipv6 == AF_UNSPEC && filter.tb)
+ if (do_ipv6 == AF_UNSPEC && filter.tb) {
do_ipv6 = AF_INET;
+ }
- if (rtnl_open(&rth, 0) < 0)
+ if (rtnl_open(&rth, 0) < 0) {
exit(1);
+ }
ll_init_map(&rth);
if (id) {
if ((idx = ll_name_to_index(id)) == 0) {
- fprintf(stderr, "Cannot find device \"%s\"\n", id);
+ error_msg("Cannot find device \"%s\"", id);
return -1;
}
filter.iif = idx;
}
if (od) {
if ((idx = ll_name_to_index(od)) == 0) {
- fprintf(stderr, "Cannot find device \"%s\"\n", od);
- return -1;
+ error_msg("Cannot find device \"%s\"", od);
}
filter.oif = idx;
filter.oifmask = -1;
if (filter.tb != -1) {
if (rtnl_wilddump_request(&rth, do_ipv6, RTM_GETROUTE) < 0) {
- perror("Cannot send dump request");
- exit(1);
+ perror_msg_and_die("Cannot send dump request");
}
} else {
if (rtnl_rtcache_request(&rth, do_ipv6) < 0) {
- perror("Cannot send dump request");
- exit(1);
+ perror_msg_and_die("Cannot send dump request");
}
}
if (rtnl_dump_filter(&rth, print_route, stdout, NULL, NULL) < 0) {
- fprintf(stderr, "Dump terminated\n");
- exit(1);
+ error_msg_and_die("Dump terminated");
}
exit(0);
}
-int iproute_get(int argc, char **argv)
+static int iproute_get(int argc, char **argv)
{
struct rtnl_handle rth;
struct {
char *odev = NULL;
int connected = 0;
int from_ok = 0;
+ const char *options[] = { "from", "iif", "oif", "dev", "notify", "connected", "to", 0 };
memset(&req, 0, sizeof(req));
req.r.rtm_tos = 0;
while (argc > 0) {
- if (matches(*argv, "from") == 0) {
- inet_prefix addr;
- NEXT_ARG();
- from_ok = 1;
- get_prefix(&addr, *argv, req.r.rtm_family);
- if (req.r.rtm_family == AF_UNSPEC)
- req.r.rtm_family = addr.family;
- if (addr.bytelen)
- addattr_l(&req.n, sizeof(req), RTA_SRC, &addr.data, addr.bytelen);
- req.r.rtm_src_len = addr.bitlen;
- } else if (matches(*argv, "iif") == 0) {
- NEXT_ARG();
- idev = *argv;
- } else if (matches(*argv, "oif") == 0 ||
- strcmp(*argv, "dev") == 0) {
- NEXT_ARG();
- odev = *argv;
- } else if (matches(*argv, "notify") == 0) {
- req.r.rtm_flags |= RTM_F_NOTIFY;
- } else if (matches(*argv, "connected") == 0) {
- connected = 1;
- } else {
- inet_prefix addr;
- if (strcmp(*argv, "to") == 0) {
+ switch (compare_string_array(options, *argv)) {
+ case 0: /* from */
+ {
+ inet_prefix addr;
NEXT_ARG();
+ from_ok = 1;
+ get_prefix(&addr, *argv, req.r.rtm_family);
+ if (req.r.rtm_family == AF_UNSPEC) {
+ req.r.rtm_family = addr.family;
+ }
+ if (addr.bytelen) {
+ addattr_l(&req.n, sizeof(req), RTA_SRC, &addr.data, addr.bytelen);
+ }
+ req.r.rtm_src_len = addr.bitlen;
+ break;
}
- get_prefix(&addr, *argv, req.r.rtm_family);
- if (req.r.rtm_family == AF_UNSPEC)
- req.r.rtm_family = addr.family;
- if (addr.bytelen)
- addattr_l(&req.n, sizeof(req), RTA_DST, &addr.data, addr.bytelen);
- req.r.rtm_dst_len = addr.bitlen;
+ case 1: /* iif */
+ NEXT_ARG();
+ idev = *argv;
+ break;
+ case 2: /* oif */
+ case 3: /* dev */
+ NEXT_ARG();
+ odev = *argv;
+ break;
+ case 4: /* notify */
+ req.r.rtm_flags |= RTM_F_NOTIFY;
+ break;
+ case 5: /* connected */
+ connected = 1;
+ break;
+ case 6: /* to */
+ NEXT_ARG();
+ default:
+ {
+ inet_prefix addr;
+ get_prefix(&addr, *argv, req.r.rtm_family);
+ if (req.r.rtm_family == AF_UNSPEC) {
+ req.r.rtm_family = addr.family;
+ }
+ if (addr.bytelen) {
+ addattr_l(&req.n, sizeof(req), RTA_DST, &addr.data, addr.bytelen);
+ }
+ req.r.rtm_dst_len = addr.bitlen;
+ }
+ argc--; argv++;
}
- argc--; argv++;
}
if (req.r.rtm_dst_len == 0) {
- fprintf(stderr, "need at least destination address\n");
- exit(1);
+ error_msg_and_die("need at least destination address");
}
if (rtnl_open(&rth, 0) < 0)
if (idev) {
if ((idx = ll_name_to_index(idev)) == 0) {
- fprintf(stderr, "Cannot find device \"%s\"\n", idev);
+ error_msg("Cannot find device \"%s\"", idev);
return -1;
}
addattr32(&req.n, sizeof(req), RTA_IIF, idx);
}
if (odev) {
if ((idx = ll_name_to_index(odev)) == 0) {
- fprintf(stderr, "Cannot find device \"%s\"\n", odev);
+ error_msg("Cannot find device \"%s\"", odev);
return -1;
}
addattr32(&req.n, sizeof(req), RTA_OIF, idx);
}
}
- if (req.r.rtm_family == AF_UNSPEC)
+ if (req.r.rtm_family == AF_UNSPEC) {
req.r.rtm_family = AF_INET;
+ }
- if (rtnl_talk(&rth, &req.n, 0, 0, &req.n, NULL, NULL) < 0)
+ if (rtnl_talk(&rth, &req.n, 0, 0, &req.n, NULL, NULL) < 0) {
exit(2);
+ }
if (connected && !from_ok) {
struct rtmsg *r = NLMSG_DATA(&req.n);
struct rtattr * tb[RTA_MAX+1];
if (print_route(NULL, &req.n, (void*)stdout) < 0) {
- fprintf(stderr, "An error :-)\n");
- exit(1);
+ error_msg_and_die("An error :-)");
}
if (req.n.nlmsg_type != RTM_NEWROUTE) {
- fprintf(stderr, "Not a route?\n");
+ error_msg("Not a route?");
return -1;
}
len -= NLMSG_LENGTH(sizeof(*r));
if (len < 0) {
- fprintf(stderr, "Wrong len %d\n", len);
+ error_msg("Wrong len %d", len);
return -1;
}
tb[RTA_PREFSRC]->rta_type = RTA_SRC;
r->rtm_src_len = 8*RTA_PAYLOAD(tb[RTA_PREFSRC]);
} else if (!tb[RTA_SRC]) {
- fprintf(stderr, "Failed to connect the route\n");
+ error_msg("Failed to connect the route");
return -1;
}
- if (!odev && tb[RTA_OIF])
+ if (!odev && tb[RTA_OIF]) {
tb[RTA_OIF]->rta_type = 0;
- if (tb[RTA_GATEWAY])
+ }
+ if (tb[RTA_GATEWAY]) {
tb[RTA_GATEWAY]->rta_type = 0;
- if (!idev && tb[RTA_IIF])
+ }
+ if (!idev && tb[RTA_IIF]) {
tb[RTA_IIF]->rta_type = 0;
+ }
req.n.nlmsg_flags = NLM_F_REQUEST;
req.n.nlmsg_type = RTM_GETROUTE;
- if (rtnl_talk(&rth, &req.n, 0, 0, &req.n, NULL, NULL) < 0)
+ if (rtnl_talk(&rth, &req.n, 0, 0, &req.n, NULL, NULL) < 0) {
exit(2);
+ }
}
if (print_route(NULL, &req.n, (void*)stdout) < 0) {
- fprintf(stderr, "An error :-)\n");
- exit(1);
+ error_msg_and_die("An error :-)");
}
exit(0);
}
-void iproute_reset_filter()
-{
- memset(&filter, 0, sizeof(filter));
- filter.mdst.bitlen = -1;
- filter.msrc.bitlen = -1;
-}
-
int do_iproute(int argc, char **argv)
{
- if (argc < 1)
- return iproute_list(0, NULL);
-
- if (matches(*argv, "add") == 0)
- return iproute_modify(RTM_NEWROUTE, NLM_F_CREATE|NLM_F_EXCL,
- argc-1, argv+1);
- if (matches(*argv, "change") == 0 || strcmp(*argv, "chg") == 0)
- return iproute_modify(RTM_NEWROUTE, NLM_F_REPLACE,
- argc-1, argv+1);
- if (matches(*argv, "replace") == 0)
- return iproute_modify(RTM_NEWROUTE, NLM_F_CREATE|NLM_F_REPLACE,
- argc-1, argv+1);
- if (matches(*argv, "prepend") == 0)
- return iproute_modify(RTM_NEWROUTE, NLM_F_CREATE,
- argc-1, argv+1);
- if (matches(*argv, "append") == 0)
- return iproute_modify(RTM_NEWROUTE, NLM_F_CREATE|NLM_F_APPEND,
- argc-1, argv+1);
- if (matches(*argv, "test") == 0)
- return iproute_modify(RTM_NEWROUTE, NLM_F_EXCL,
- argc-1, argv+1);
- if (matches(*argv, "delete") == 0)
- return iproute_modify(RTM_DELROUTE, 0,
- argc-1, argv+1);
- if (matches(*argv, "list") == 0 || matches(*argv, "show") == 0
- || matches(*argv, "lst") == 0)
- return iproute_list(argc-1, argv+1);
- if (matches(*argv, "get") == 0)
- return iproute_get(argc-1, argv+1);
- fprintf(stderr, "Command \"%s\" is unknown, try \"ip route help\".\n", *argv);
- exit(-1);
+ const char *ip_route_commands[] = { "add", "append", "change", "chg",
+ "delete", "get", "list", "show", "prepend", "replace", "test", 0 };
+ unsigned short command_num = 6;
+ unsigned int flags = 0;
+ int cmd = RTM_NEWROUTE;
+
+ if (*argv) {
+ command_num = compare_string_array(ip_route_commands, *argv);
+ }
+ switch(command_num) {
+ case 0: /* add*/
+ flags = NLM_F_CREATE|NLM_F_EXCL;
+ break;
+ case 1: /* append */
+ flags = NLM_F_CREATE|NLM_F_APPEND;
+ break;
+ case 2: /* change */
+ case 3: /* chg */
+ flags = NLM_F_REPLACE;
+ break;
+ case 4: /* delete */
+ cmd = RTM_DELROUTE;
+ break;
+ case 5: /* get */
+ return iproute_get(argc-1, argv+1);
+ case 6: /* list */
+ case 7: /* show */
+ return iproute_list(argc-1, argv+1);
+ case 8: /* prepend */
+ flags = NLM_F_CREATE;
+ case 9: /* replace */
+ flags = NLM_F_CREATE|NLM_F_REPLACE;
+ case 10: /* test */
+ flags = NLM_F_EXCL;
+ default:
+ error_msg_and_die("Unknown command %s", *argv);
+ }
+
+ return iproute_modify(cmd, flags, argc-1, argv+1);
}
projects / oweals / busybox.git / blobdiff