/* vi: set sw=4 ts=4: */
/*
- * iproute.c "ip route".
- *
- * Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
- *
- * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
*
+ * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
*
* Changes:
*
- * Rani Assaf <rani@magic.metawire.com> 980929: resolve addresses
+ * Rani Assaf <rani@magic.metawire.com> 980929: resolve addresses
* Kunihiro Ishiguro <kunihiro@zebra.org> 001102: rtnh_ifindex was not initialized
*/
-
-#include "ip_common.h" /* #include "libbb.h" is inside */
+#include "ip_common.h" /* #include "libbb.h" is inside */
+#include "common_bufsiz.h"
#include "rt_names.h"
#include "utils.h"
+#include <linux/version.h>
+/* RTA_TABLE is not a define, can't test with ifdef. */
+/* As a proxy, test which kernels toolchain expects: */
+#define HAVE_RTA_TABLE (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,19))
+
#ifndef RTAX_RTTVAR
#define RTAX_RTTVAR RTAX_HOPS
#endif
-typedef struct filter_t {
+struct filter_t {
int tb;
+ /* Misnomer. Does not mean "flushed something" */
+ /* More like "flush commands were constructed by print_route()" */
smallint flushed;
+ /* Flush cmd buf. If !NULL, print_route() constructs flush commands in it */
char *flushb;
int flushp;
int flushe;
struct rtnl_handle *rth;
- int protocol, protocolmask;
+ //int protocol, protocolmask; - write-only fields?!
int scope, scopemask;
- int type, typemask;
- int tos, tosmask;
- int iif, iifmask;
- int oif, oifmask;
- int realm, realmmask;
- inet_prefix rprefsrc;
+ //int type; - read-only
+ //int typemask; - unused
+ //int tos, tosmask; - unused
+ int iif;
+ int oif;
+ //int realm, realmmask; - unused
+ //inet_prefix rprefsrc; - read-only
inet_prefix rvia;
inet_prefix rdst;
inet_prefix mdst;
inet_prefix rsrc;
inet_prefix msrc;
-} filter_t;
+} FIX_ALIASING;
+typedef struct filter_t filter_t;
-#define filter (*(filter_t*)&bb_common_bufsiz1)
+#define G_filter (*(filter_t*)bb_common_bufsiz1)
+#define INIT_G() do { setup_common_bufsiz(); } while (0)
static int flush_update(void)
{
- if (rtnl_send(filter.rth, filter.flushb, filter.flushp) < 0) {
- bb_perror_msg("failed to send flush request");
+ if (rtnl_send_check(G_filter.rth, G_filter.flushb, G_filter.flushp) < 0) {
+ bb_simple_perror_msg("can't send flush request");
return -1;
}
- filter.flushp = 0;
+ G_filter.flushp = 0;
return 0;
}
-static unsigned get_hz(void)
+static int FAST_FUNC print_route(const struct sockaddr_nl *who UNUSED_PARAM,
+ struct nlmsghdr *n, void *arg UNUSED_PARAM)
{
- static unsigned hz_internal;
- FILE *fp;
-
- if (hz_internal)
- return hz_internal;
-
- fp = fopen("/proc/net/psched", "r");
- if (fp) {
- unsigned nom, denom;
-
- if (fscanf(fp, "%*08x%*08x%08x%08x", &nom, &denom) == 2)
- if (nom == 1000000)
- hz_internal = denom;
- fclose(fp);
- }
- if (!hz_internal)
- hz_internal = sysconf(_SC_CLK_TCK);
- return hz_internal;
-}
-
-static int print_route(const struct sockaddr_nl *who ATTRIBUTE_UNUSED,
- struct nlmsghdr *n, void *arg)
-{
- FILE *fp = (FILE*)arg;
struct rtmsg *r = NLMSG_DATA(n);
int len = n->nlmsg_len;
- struct rtattr * tb[RTA_MAX+1];
- char abuf[256];
+ struct rtattr *tb[RTA_MAX+1];
inet_prefix dst;
inet_prefix src;
int host_len = -1;
- SPRINT_BUF(b1);
+ uint32_t tid;
if (n->nlmsg_type != RTM_NEWROUTE && n->nlmsg_type != RTM_DELROUTE) {
fprintf(stderr, "Not a route: %08x %08x %08x\n",
n->nlmsg_len, n->nlmsg_type, n->nlmsg_flags);
return 0;
}
- if (filter.flushb && n->nlmsg_type != RTM_NEWROUTE)
+ if (G_filter.flushb && n->nlmsg_type != RTM_NEWROUTE)
return 0;
len -= NLMSG_LENGTH(sizeof(*r));
if (len < 0)
bb_error_msg_and_die("wrong nlmsg len %d", len);
+ //memset(tb, 0, sizeof(tb)); - parse_rtattr does this
+ parse_rtattr(tb, RTA_MAX, RTM_RTA(r), len);
+
+#if HAVE_RTA_TABLE
+ if (tb[RTA_TABLE])
+ tid = *(uint32_t *)RTA_DATA(tb[RTA_TABLE]);
+ else
+#endif
+ tid = r->rtm_table;
+
if (r->rtm_family == AF_INET6)
host_len = 128;
else if (r->rtm_family == AF_INET)
host_len = 32;
if (r->rtm_family == AF_INET6) {
- if (filter.tb) {
- if (filter.tb < 0) {
+ if (G_filter.tb) {
+ if (G_filter.tb < 0) {
if (!(r->rtm_flags & RTM_F_CLONED)) {
return 0;
}
if (r->rtm_flags & RTM_F_CLONED) {
return 0;
}
- if (filter.tb == RT_TABLE_LOCAL) {
+ if (G_filter.tb == RT_TABLE_LOCAL) {
if (r->rtm_type != RTN_LOCAL) {
return 0;
}
- } else if (filter.tb == RT_TABLE_MAIN) {
+ } else if (G_filter.tb == RT_TABLE_MAIN) {
if (r->rtm_type == RTN_LOCAL) {
return 0;
}
}
}
} else {
- if (filter.tb > 0 && filter.tb != r->rtm_table) {
+ if (G_filter.tb > 0 && G_filter.tb != tid) {
return 0;
}
}
- if (filter.rdst.family &&
- (r->rtm_family != filter.rdst.family || filter.rdst.bitlen > r->rtm_dst_len)) {
+ if ((G_filter.scope ^ r->rtm_scope) & G_filter.scopemask)
+ return 0;
+ if (G_filter.rdst.family
+ && (r->rtm_family != G_filter.rdst.family || G_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))) {
+ if (G_filter.mdst.family
+ && (r->rtm_family != G_filter.mdst.family
+ || (G_filter.mdst.bitlen >= 0 && G_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)) {
+ if (G_filter.rsrc.family
+ && (r->rtm_family != G_filter.rsrc.family || G_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))) {
+ if (G_filter.msrc.family
+ && (r->rtm_family != G_filter.msrc.family
+ || (G_filter.msrc.bitlen >= 0 && G_filter.msrc.bitlen < r->rtm_src_len)
+ )
+ ) {
return 0;
}
- memset(tb, 0, sizeof(tb));
- parse_rtattr(tb, RTA_MAX, RTM_RTA(r), len);
+ memset(&src, 0, sizeof(src));
+ memset(&dst, 0, sizeof(dst));
- if (filter.rdst.family && inet_addr_match(&dst, &filter.rdst, filter.rdst.bitlen))
- return 0;
- if (filter.mdst.family && filter.mdst.bitlen >= 0 &&
- inet_addr_match(&dst, &filter.mdst, r->rtm_dst_len))
- return 0;
+ if (tb[RTA_SRC]) {
+ src.bitlen = r->rtm_src_len;
+ src.bytelen = (r->rtm_family == AF_INET6 ? 16 : 4);
+ memcpy(src.data, RTA_DATA(tb[RTA_SRC]), src.bytelen);
+ }
+ if (tb[RTA_DST]) {
+ dst.bitlen = r->rtm_dst_len;
+ dst.bytelen = (r->rtm_family == AF_INET6 ? 16 : 4);
+ memcpy(dst.data, RTA_DATA(tb[RTA_DST]), dst.bytelen);
+ }
- if (filter.rsrc.family && inet_addr_match(&src, &filter.rsrc, filter.rsrc.bitlen))
+ if (G_filter.rdst.family
+ && inet_addr_match(&dst, &G_filter.rdst, G_filter.rdst.bitlen)
+ ) {
return 0;
- if (filter.msrc.family && filter.msrc.bitlen >= 0 &&
- inet_addr_match(&src, &filter.msrc, r->rtm_src_len))
+ }
+ if (G_filter.mdst.family
+ && G_filter.mdst.bitlen >= 0
+ && inet_addr_match(&dst, &G_filter.mdst, r->rtm_dst_len)
+ ) {
return 0;
-
- if (filter.flushb &&
- r->rtm_family == AF_INET6 &&
- r->rtm_dst_len == 0 &&
- r->rtm_type == RTN_UNREACHABLE &&
- tb[RTA_PRIORITY] &&
- *(int*)RTA_DATA(tb[RTA_PRIORITY]) == -1)
+ }
+ if (G_filter.rsrc.family
+ && inet_addr_match(&src, &G_filter.rsrc, G_filter.rsrc.bitlen)
+ ) {
return 0;
+ }
+ if (G_filter.msrc.family && G_filter.msrc.bitlen >= 0
+ && inet_addr_match(&src, &G_filter.msrc, r->rtm_src_len)
+ ) {
+ return 0;
+ }
+ if (G_filter.oif != 0) {
+ if (!tb[RTA_OIF])
+ return 0;
+ if (G_filter.oif != *(int*)RTA_DATA(tb[RTA_OIF]))
+ return 0;
+ }
- if (filter.flushb) {
+ if (G_filter.flushb) {
struct nlmsghdr *fn;
- if (NLMSG_ALIGN(filter.flushp) + n->nlmsg_len > filter.flushe) {
+
+ /* We are creating route flush commands */
+
+ if (r->rtm_family == AF_INET6
+ && r->rtm_dst_len == 0
+ && r->rtm_type == RTN_UNREACHABLE
+ && tb[RTA_PRIORITY]
+ && *(int*)RTA_DATA(tb[RTA_PRIORITY]) == -1
+ ) {
+ return 0;
+ }
+
+ if (NLMSG_ALIGN(G_filter.flushp) + n->nlmsg_len > G_filter.flushe) {
if (flush_update())
- bb_error_msg_and_die("flush");
+ xfunc_die();
}
- fn = (struct nlmsghdr*)(filter.flushb + NLMSG_ALIGN(filter.flushp));
+ fn = (void*)(G_filter.flushb + NLMSG_ALIGN(G_filter.flushp));
memcpy(fn, n, n->nlmsg_len);
fn->nlmsg_type = RTM_DELROUTE;
fn->nlmsg_flags = NLM_F_REQUEST;
- fn->nlmsg_seq = ++filter.rth->seq;
- filter.flushp = (((char*)fn) + n->nlmsg_len) - filter.flushb;
- filter.flushed = 1;
+ fn->nlmsg_seq = ++G_filter.rth->seq;
+ G_filter.flushp = (((char*)fn) + n->nlmsg_len) - G_filter.flushb;
+ G_filter.flushed = 1;
return 0;
}
+ /* We are printing routes */
+
if (n->nlmsg_type == RTM_DELROUTE) {
- fprintf(fp, "Deleted ");
+ printf("Deleted ");
}
- if (r->rtm_type != RTN_UNICAST && !filter.type) {
- fprintf(fp, "%s ", rtnl_rtntype_n2a(r->rtm_type, b1, sizeof(b1)));
+ if (r->rtm_type != RTN_UNICAST /* && !G_filter.type - always 0 */) {
+ printf("%s ", rtnl_rtntype_n2a(r->rtm_type));
}
if (tb[RTA_DST]) {
if (r->rtm_dst_len != host_len) {
- fprintf(fp, "%s/%u ", rt_addr_n2a(r->rtm_family,
- RTA_PAYLOAD(tb[RTA_DST]),
- RTA_DATA(tb[RTA_DST]),
- abuf, sizeof(abuf)),
+ printf("%s/%u ",
+ rt_addr_n2a(r->rtm_family, RTA_DATA(tb[RTA_DST])),
r->rtm_dst_len
- );
+ );
} else {
- fprintf(fp, "%s ", format_host(r->rtm_family,
- RTA_PAYLOAD(tb[RTA_DST]),
- RTA_DATA(tb[RTA_DST]),
- abuf, sizeof(abuf))
- );
+ printf("%s ", format_host(r->rtm_family,
+ RTA_PAYLOAD(tb[RTA_DST]),
+ RTA_DATA(tb[RTA_DST]))
+ );
}
} else if (r->rtm_dst_len) {
- fprintf(fp, "0/%d ", r->rtm_dst_len);
+ printf("0/%d ", r->rtm_dst_len);
} else {
- fprintf(fp, "default ");
+ printf("default ");
}
if (tb[RTA_SRC]) {
if (r->rtm_src_len != host_len) {
- fprintf(fp, "from %s/%u ", rt_addr_n2a(r->rtm_family,
- RTA_PAYLOAD(tb[RTA_SRC]),
- RTA_DATA(tb[RTA_SRC]),
- abuf, sizeof(abuf)),
+ printf("from %s/%u ",
+ rt_addr_n2a(r->rtm_family, RTA_DATA(tb[RTA_SRC])),
r->rtm_src_len
- );
+ );
} else {
- fprintf(fp, "from %s ", format_host(r->rtm_family,
- RTA_PAYLOAD(tb[RTA_SRC]),
- RTA_DATA(tb[RTA_SRC]),
- abuf, sizeof(abuf))
- );
+ printf("from %s ", format_host(r->rtm_family,
+ RTA_PAYLOAD(tb[RTA_SRC]),
+ RTA_DATA(tb[RTA_SRC]))
+ );
}
} else if (r->rtm_src_len) {
- fprintf(fp, "from 0/%u ", r->rtm_src_len);
+ printf("from 0/%u ", r->rtm_src_len);
}
- if (tb[RTA_GATEWAY] && filter.rvia.bitlen != host_len) {
- fprintf(fp, "via %s ",
- format_host(r->rtm_family,
- RTA_PAYLOAD(tb[RTA_GATEWAY]),
- RTA_DATA(tb[RTA_GATEWAY]),
- abuf, sizeof(abuf)));
+ if (tb[RTA_GATEWAY] && G_filter.rvia.bitlen != host_len) {
+ printf("via %s ", format_host(r->rtm_family,
+ RTA_PAYLOAD(tb[RTA_GATEWAY]),
+ RTA_DATA(tb[RTA_GATEWAY]))
+ );
}
- if (tb[RTA_OIF] && filter.oifmask != -1) {
- fprintf(fp, "dev %s ", ll_index_to_name(*(int*)RTA_DATA(tb[RTA_OIF])));
+ if (tb[RTA_OIF]) {
+ printf("dev %s ", ll_index_to_name(*(int*)RTA_DATA(tb[RTA_OIF])));
}
+#if ENABLE_FEATURE_IP_RULE
+ if (tid && tid != RT_TABLE_MAIN && !G_filter.tb)
+ printf("table %s ", rtnl_rttable_n2a(tid));
+#endif
- if (tb[RTA_PREFSRC] && filter.rprefsrc.bitlen != host_len) {
+ /* Todo: parse & show "proto kernel" here */
+ if (!(r->rtm_flags & RTM_F_CLONED)) {
+ if ((r->rtm_scope != RT_SCOPE_UNIVERSE) && G_filter.scopemask != -1)
+ printf("scope %s ", rtnl_rtscope_n2a(r->rtm_scope));
+ }
+
+ if (tb[RTA_PREFSRC] && /*G_filter.rprefsrc.bitlen - always 0*/ 0 != host_len) {
/* Do not use format_host(). It is our local addr
and symbolic name will not be useful.
*/
- fprintf(fp, " src %s ",
- rt_addr_n2a(r->rtm_family,
- RTA_PAYLOAD(tb[RTA_PREFSRC]),
- RTA_DATA(tb[RTA_PREFSRC]),
- abuf, sizeof(abuf)));
+ printf(" src %s ", rt_addr_n2a(r->rtm_family,
+ RTA_DATA(tb[RTA_PREFSRC])));
}
if (tb[RTA_PRIORITY]) {
- fprintf(fp, " metric %d ", *(uint32_t*)RTA_DATA(tb[RTA_PRIORITY]));
+ printf(" metric %d ", *(uint32_t*)RTA_DATA(tb[RTA_PRIORITY]));
+ }
+ if (r->rtm_flags & RTNH_F_DEAD) {
+ printf("dead ");
}
+ if (r->rtm_flags & RTNH_F_ONLINK) {
+ printf("onlink ");
+ }
+ if (r->rtm_flags & RTNH_F_PERVASIVE) {
+ printf("pervasive ");
+ }
+ if (r->rtm_flags & RTM_F_NOTIFY) {
+ printf("notify ");
+ }
+
if (r->rtm_family == AF_INET6) {
struct rta_cacheinfo *ci = NULL;
if (tb[RTA_CACHEINFO]) {
}
if ((r->rtm_flags & RTM_F_CLONED) || (ci && ci->rta_expires)) {
if (r->rtm_flags & RTM_F_CLONED) {
- fprintf(fp, "%c cache ", _SL_);
+ printf("%c cache ", _SL_);
}
if (ci->rta_expires) {
- fprintf(fp, " expires %dsec", ci->rta_expires / get_hz());
+ printf(" expires %dsec", ci->rta_expires / get_hz());
}
if (ci->rta_error != 0) {
- fprintf(fp, " error %d", ci->rta_error);
+ printf(" error %d", ci->rta_error);
}
} else if (ci) {
if (ci->rta_error != 0)
- fprintf(fp, " error %d", ci->rta_error);
+ printf(" error %d", ci->rta_error);
}
}
- if (tb[RTA_IIF] && filter.iifmask != -1) {
- fprintf(fp, " iif %s", ll_index_to_name(*(int*)RTA_DATA(tb[RTA_IIF])));
+ if (tb[RTA_IIF] && G_filter.iif == 0) {
+ printf(" iif %s", ll_index_to_name(*(int*)RTA_DATA(tb[RTA_IIF])));
}
- fputc('\n', fp);
- fflush(fp);
+ bb_putchar('\n');
return 0;
}
+static int str_is_lock(const char *str)
+{
+ return strcmp(str, "lock") == 0;
+}
+
/* Return value becomes exitcode. It's okay to not return at all */
static int iproute_modify(int cmd, unsigned flags, char **argv)
{
+ /* If you add stuff here, update iproute_full_usage */
static const char keywords[] ALIGN1 =
- "src\0""via\0""mtu\0""lock\0""protocol\0"USE_FEATURE_IP_RULE("table\0")
- "dev\0""oif\0""to\0";
+ "src\0""via\0"
+ "mtu\0""advmss\0"
+ "scope\0""protocol\0"IF_FEATURE_IP_RULE("table\0")
+ "dev\0""oif\0""to\0""metric\0""onlink\0";
+#define keyword_via (keywords + sizeof("src"))
+#define keyword_mtu (keyword_via + sizeof("via"))
+#define keyword_advmss (keyword_mtu + sizeof("mtu"))
+#define keyword_scope (keyword_advmss + sizeof("advmss"))
+#define keyword_proto (keyword_scope + sizeof("scope"))
+#define keyword_table (keyword_proto + sizeof("protocol"))
enum {
ARG_src,
ARG_via,
- ARG_mtu, PARM_lock,
+ ARG_mtu,
+ ARG_advmss,
+ ARG_scope,
ARG_protocol,
-USE_FEATURE_IP_RULE(ARG_table,)
+IF_FEATURE_IP_RULE(ARG_table,)
ARG_dev,
ARG_oif,
- ARG_to
+ ARG_to,
+ ARG_metric,
+ ARG_onlink,
};
enum {
gw_ok = 1 << 0,
};
struct rtnl_handle rth;
struct {
- struct nlmsghdr n;
- struct rtmsg r;
- char buf[1024];
+ struct nlmsghdr n;
+ struct rtmsg r;
+ char buf[1024];
} req;
char mxbuf[256];
struct rtattr * mxrta = (void*)mxbuf;
unsigned mxlock = 0;
char *d = NULL;
smalluint ok = 0;
+ smalluint scope_ok = 0;
int arg;
memset(&req, 0, sizeof(req));
req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct rtmsg));
- req.n.nlmsg_flags = NLM_F_REQUEST|flags;
+ req.n.nlmsg_flags = NLM_F_REQUEST | flags;
req.n.nlmsg_type = cmd;
req.r.rtm_family = preferred_family;
- req.r.rtm_table = RT_TABLE_MAIN;
- req.r.rtm_scope = RT_SCOPE_NOWHERE;
+ if (RT_TABLE_MAIN != 0) /* if it is zero, memset already did it */
+ req.r.rtm_table = RT_TABLE_MAIN;
+ if (RT_SCOPE_NOWHERE != 0)
+ req.r.rtm_scope = RT_SCOPE_NOWHERE;
if (cmd != RTM_DELROUTE) {
- req.r.rtm_protocol = RTPROT_BOOT;
req.r.rtm_scope = RT_SCOPE_UNIVERSE;
- req.r.rtm_type = RTN_UNICAST;
+ if (RTPROT_BOOT != 0)
+ req.r.rtm_protocol = RTPROT_BOOT;
+ if (RTN_UNICAST != 0)
+ req.r.rtm_type = RTN_UNICAST;
}
mxrta->rta_type = RTA_METRICS;
} else if (arg == ARG_mtu) {
unsigned mtu;
NEXT_ARG();
- if (index_in_strings(keywords, *argv) == PARM_lock) {
+ if (str_is_lock(*argv)) {
mxlock |= (1 << RTAX_MTU);
NEXT_ARG();
}
- if (get_unsigned(&mtu, *argv, 0))
- invarg(*argv, "mtu");
+ mtu = get_unsigned(*argv, keyword_mtu);
rta_addattr32(mxrta, sizeof(mxbuf), RTAX_MTU, mtu);
+ } else if (arg == ARG_advmss) {
+ unsigned mss;
+ NEXT_ARG();
+ if (str_is_lock(*argv)) {
+ mxlock |= (1 << RTAX_ADVMSS);
+ NEXT_ARG();
+ }
+ mss = get_unsigned(*argv, keyword_advmss);
+ rta_addattr32(mxrta, sizeof(mxbuf), RTAX_ADVMSS, mss);
+ } else if (arg == ARG_scope) {
+ uint32_t scope;
+ NEXT_ARG();
+ if (rtnl_rtscope_a2n(&scope, *argv))
+ invarg_1_to_2(*argv, keyword_scope);
+ req.r.rtm_scope = scope;
+ scope_ok = 1;
} else if (arg == ARG_protocol) {
uint32_t prot;
NEXT_ARG();
if (rtnl_rtprot_a2n(&prot, *argv))
- invarg(*argv, "protocol");
+ invarg_1_to_2(*argv, keyword_proto);
req.r.rtm_protocol = prot;
ok |= proto_ok;
#if ENABLE_FEATURE_IP_RULE
uint32_t tid;
NEXT_ARG();
if (rtnl_rttable_a2n(&tid, *argv))
- invarg(*argv, "table");
- req.r.rtm_table = tid;
+ invarg_1_to_2(*argv, keyword_table);
+#if HAVE_RTA_TABLE
+ if (tid > 255) {
+ req.r.rtm_table = RT_TABLE_UNSPEC;
+ addattr32(&req.n, sizeof(req), RTA_TABLE, tid);
+ } else
+#endif
+ req.r.rtm_table = tid;
#endif
} else if (arg == ARG_dev || arg == ARG_oif) {
NEXT_ARG();
d = *argv;
+ } else if (arg == ARG_metric) {
+//TODO: "metric", "priority" and "preference" are synonyms
+ uint32_t metric;
+ NEXT_ARG();
+ metric = get_u32(*argv, "metric");
+ addattr32(&req.n, sizeof(req), RTA_PRIORITY, metric);
+ } else if (arg == ARG_onlink) {
+ req.r.rtm_flags |= RTNH_F_ONLINK;
} else {
int type;
inet_prefix dst;
NEXT_ARG();
}
if ((**argv < '0' || **argv > '9')
- && rtnl_rtntype_a2n(&type, *argv) == 0) {
+ && rtnl_rtntype_a2n(&type, *argv) == 0
+ ) {
NEXT_ARG();
req.r.rtm_type = type;
ok |= type_ok;
addattr_l(&req.n, sizeof(req), RTA_DST, &dst.data, dst.bytelen);
}
}
+/* Other keywords recognized by iproute2-3.19.0: */
+#if 0
+ } else if (strcmp(*argv, "from") == 0) {
+ inet_prefix addr;
+ NEXT_ARG();
+ 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 (strcmp(*argv, "tos") == 0 ||
+ matches(*argv, "dsfield") == 0) {
+ __u32 tos;
+ NEXT_ARG();
+ if (rtnl_dsfield_a2n(&tos, *argv))
+ invarg("\"tos\" value is invalid\n", *argv);
+ req.r.rtm_tos = tos;
+ } else if (strcmp(*argv, "hoplimit") == 0) {
+ unsigned hoplimit;
+ NEXT_ARG();
+ if (strcmp(*argv, "lock") == 0) {
+ mxlock |= (1<<RTAX_HOPLIMIT);
+ NEXT_ARG();
+ }
+ if (get_unsigned(&hoplimit, *argv, 0))
+ invarg("\"hoplimit\" value is invalid\n", *argv);
+ rta_addattr32(mxrta, sizeof(mxbuf), RTAX_HOPLIMIT, hoplimit);
+ } else if (matches(*argv, "reordering") == 0) {
+ unsigned reord;
+ NEXT_ARG();
+ if (strcmp(*argv, "lock") == 0) {
+ mxlock |= (1<<RTAX_REORDERING);
+ NEXT_ARG();
+ }
+ if (get_unsigned(&reord, *argv, 0))
+ invarg("\"reordering\" value is invalid\n", *argv);
+ rta_addattr32(mxrta, sizeof(mxbuf), RTAX_REORDERING, reord);
+ } else if (strcmp(*argv, "rtt") == 0) {
+ unsigned rtt;
+ NEXT_ARG();
+ if (strcmp(*argv, "lock") == 0) {
+ mxlock |= (1<<RTAX_RTT);
+ NEXT_ARG();
+ }
+ if (get_time_rtt(&rtt, *argv, &raw))
+ invarg("\"rtt\" value is invalid\n", *argv);
+ rta_addattr32(mxrta, sizeof(mxbuf), RTAX_RTT,
+ (raw) ? rtt : rtt * 8);
+ } else if (strcmp(*argv, "rto_min") == 0) {
+ unsigned rto_min;
+ NEXT_ARG();
+ mxlock |= (1<<RTAX_RTO_MIN);
+ if (get_time_rtt(&rto_min, *argv, &raw))
+ invarg("\"rto_min\" value is invalid\n",
+ *argv);
+ rta_addattr32(mxrta, sizeof(mxbuf), RTAX_RTO_MIN,
+ rto_min);
+ } else if (matches(*argv, "window") == 0) {
+ unsigned win;
+ NEXT_ARG();
+ if (strcmp(*argv, "lock") == 0) {
+ mxlock |= (1<<RTAX_WINDOW);
+ NEXT_ARG();
+ }
+ if (get_unsigned(&win, *argv, 0))
+ invarg("\"window\" value is invalid\n", *argv);
+ rta_addattr32(mxrta, sizeof(mxbuf), RTAX_WINDOW, win);
+ } else if (matches(*argv, "cwnd") == 0) {
+ unsigned win;
+ NEXT_ARG();
+ if (strcmp(*argv, "lock") == 0) {
+ mxlock |= (1<<RTAX_CWND);
+ NEXT_ARG();
+ }
+ if (get_unsigned(&win, *argv, 0))
+ invarg("\"cwnd\" value is invalid\n", *argv);
+ rta_addattr32(mxrta, sizeof(mxbuf), RTAX_CWND, win);
+ } else if (matches(*argv, "initcwnd") == 0) {
+ unsigned win;
+ NEXT_ARG();
+ if (strcmp(*argv, "lock") == 0) {
+ mxlock |= (1<<RTAX_INITCWND);
+ NEXT_ARG();
+ }
+ if (get_unsigned(&win, *argv, 0))
+ invarg("\"initcwnd\" value is invalid\n", *argv);
+ rta_addattr32(mxrta, sizeof(mxbuf), RTAX_INITCWND, win);
+ } else if (matches(*argv, "initrwnd") == 0) {
+ unsigned win;
+ NEXT_ARG();
+ if (strcmp(*argv, "lock") == 0) {
+ mxlock |= (1<<RTAX_INITRWND);
+ NEXT_ARG();
+ }
+ if (get_unsigned(&win, *argv, 0))
+ invarg("\"initrwnd\" value is invalid\n", *argv);
+ rta_addattr32(mxrta, sizeof(mxbuf), RTAX_INITRWND, win);
+ } else if (matches(*argv, "features") == 0) {
+ unsigned int features = 0;
+
+ while (argc > 0) {
+ NEXT_ARG();
+
+ if (strcmp(*argv, "ecn") == 0)
+ features |= RTAX_FEATURE_ECN;
+ else
+ invarg("\"features\" value not valid\n", *argv);
+ break;
+ }
+
+ rta_addattr32(mxrta, sizeof(mxbuf), RTAX_FEATURES, features);
+ } else if (matches(*argv, "quickack") == 0) {
+ unsigned quickack;
+ NEXT_ARG();
+ if (get_unsigned(&quickack, *argv, 0))
+ invarg("\"quickack\" value is invalid\n", *argv);
+ if (quickack != 1 && quickack != 0)
+ invarg("\"quickack\" value should be 0 or 1\n", *argv);
+ rta_addattr32(mxrta, sizeof(mxbuf), RTAX_QUICKACK, quickack);
+ } else if (matches(*argv, "rttvar") == 0) {
+ unsigned win;
+ NEXT_ARG();
+ if (strcmp(*argv, "lock") == 0) {
+ mxlock |= (1<<RTAX_RTTVAR);
+ NEXT_ARG();
+ }
+ if (get_time_rtt(&win, *argv, &raw))
+ invarg("\"rttvar\" value is invalid\n", *argv);
+ rta_addattr32(mxrta, sizeof(mxbuf), RTAX_RTTVAR,
+ (raw) ? win : win * 4);
+ } else if (matches(*argv, "ssthresh") == 0) {
+ unsigned win;
+ NEXT_ARG();
+ if (strcmp(*argv, "lock") == 0) {
+ mxlock |= (1<<RTAX_SSTHRESH);
+ NEXT_ARG();
+ }
+ if (get_unsigned(&win, *argv, 0))
+ invarg("\"ssthresh\" value is invalid\n", *argv);
+ rta_addattr32(mxrta, sizeof(mxbuf), RTAX_SSTHRESH, win);
+ } else if (matches(*argv, "realms") == 0) {
+ __u32 realm;
+ NEXT_ARG();
+ if (get_rt_realms(&realm, *argv))
+ invarg("\"realm\" value is invalid\n", *argv);
+ addattr32(&req.n, sizeof(req), RTA_FLOW, realm);
+ } else if (strcmp(*argv, "nexthop") == 0) {
+ nhs_ok = 1;
+ break;
+ }
+#endif
argv++;
}
addattr_l(&req.n, sizeof(req), RTA_METRICS, RTA_DATA(mxrta), RTA_PAYLOAD(mxrta));
}
- if (req.r.rtm_type == RTN_LOCAL || req.r.rtm_type == RTN_NAT)
- req.r.rtm_scope = RT_SCOPE_HOST;
- else if (req.r.rtm_type == RTN_BROADCAST ||
- req.r.rtm_type == RTN_MULTICAST ||
- req.r.rtm_type == RTN_ANYCAST)
- req.r.rtm_scope = RT_SCOPE_LINK;
- else if (req.r.rtm_type == RTN_UNICAST || req.r.rtm_type == RTN_UNSPEC) {
- if (cmd == RTM_DELROUTE)
- req.r.rtm_scope = RT_SCOPE_NOWHERE;
- else if (!(ok & gw_ok))
+ if (!scope_ok) {
+ if (req.r.rtm_type == RTN_LOCAL || req.r.rtm_type == RTN_NAT)
+ req.r.rtm_scope = RT_SCOPE_HOST;
+ else
+ if (req.r.rtm_type == RTN_BROADCAST
+ || req.r.rtm_type == RTN_MULTICAST
+ || req.r.rtm_type == RTN_ANYCAST
+ ) {
req.r.rtm_scope = RT_SCOPE_LINK;
+ }
+ else if (req.r.rtm_type == RTN_UNICAST || req.r.rtm_type == RTN_UNSPEC) {
+ if (cmd == RTM_DELROUTE)
+ req.r.rtm_scope = RT_SCOPE_NOWHERE;
+ else if (!(ok & gw_ok))
+ req.r.rtm_scope = RT_SCOPE_LINK;
+ }
}
if (req.r.rtm_family == AF_UNSPEC) {
nladdr.nl_family = AF_NETLINK;
req.nlh.nlmsg_len = sizeof(req);
- req.nlh.nlmsg_type = RTM_GETROUTE;
- req.nlh.nlmsg_flags = NLM_F_ROOT|NLM_F_REQUEST;
- req.nlh.nlmsg_pid = 0;
+ if (RTM_GETROUTE)
+ req.nlh.nlmsg_type = RTM_GETROUTE;
+ if (NLM_F_ROOT | NLM_F_REQUEST)
+ req.nlh.nlmsg_flags = NLM_F_ROOT | NLM_F_REQUEST;
+ /*req.nlh.nlmsg_pid = 0; - memset did it already */
req.nlh.nlmsg_seq = rth->dump = ++rth->seq;
req.rtm.rtm_family = family;
- req.rtm.rtm_flags |= RTM_F_CLONED;
+ if (RTM_F_CLONED)
+ req.rtm.rtm_flags = RTM_F_CLONED;
return xsendto(rth->fd, (void*)&req, sizeof(req), (struct sockaddr*)&nladdr, sizeof(nladdr));
}
}
if (write(flush_fd, "-1", 2) < 2) {
- bb_perror_msg("cannot flush routing cache");
+ bb_simple_perror_msg("can't flush routing cache");
return;
}
close(flush_fd);
static void iproute_reset_filter(void)
{
- memset(&filter, 0, sizeof(filter));
- filter.mdst.bitlen = -1;
- filter.msrc.bitlen = -1;
+ memset(&G_filter, 0, sizeof(G_filter));
+ G_filter.mdst.bitlen = -1;
+ G_filter.msrc.bitlen = -1;
}
/* Return value becomes exitcode. It's okay to not return at all */
char *id = NULL;
char *od = NULL;
static const char keywords[] ALIGN1 =
+ /* If you add stuff here, update iproute_full_usage */
/* "ip route list/flush" parameters: */
"protocol\0" "dev\0" "oif\0" "iif\0"
"via\0" "table\0" "cache\0"
- "from\0" "to\0"
+ "from\0" "to\0" "scope\0"
/* and possible further keywords */
"all\0"
"root\0"
enum {
KW_proto, KW_dev, KW_oif, KW_iif,
KW_via, KW_table, KW_cache,
- KW_from, KW_to,
+ KW_from, KW_to, KW_scope,
/* */
KW_all,
KW_root,
int arg, parm;
iproute_reset_filter();
- filter.tb = RT_TABLE_MAIN;
+ G_filter.tb = RT_TABLE_MAIN;
if (flush && !*argv)
bb_error_msg_and_die(bb_msg_requires_arg, "\"ip route flush\"");
if (arg == KW_proto) {
uint32_t prot = 0;
NEXT_ARG();
- filter.protocolmask = -1;
+ //G_filter.protocolmask = -1;
if (rtnl_rtprot_a2n(&prot, *argv)) {
if (index_in_strings(keywords, *argv) != KW_all)
- invarg(*argv, "protocol");
+ invarg_1_to_2(*argv, "protocol");
prot = 0;
- filter.protocolmask = 0;
+ //G_filter.protocolmask = 0;
}
- filter.protocol = prot;
+ //G_filter.protocol = prot;
} else if (arg == KW_dev || arg == KW_oif) {
NEXT_ARG();
od = *argv;
id = *argv;
} else if (arg == KW_via) {
NEXT_ARG();
- get_prefix(&filter.rvia, *argv, do_ipv6);
+ get_prefix(&G_filter.rvia, *argv, do_ipv6);
} else if (arg == KW_table) { /* table all/cache/main */
NEXT_ARG();
parm = index_in_substrings(keywords, *argv);
if (parm == KW_cache)
- filter.tb = -1;
+ G_filter.tb = -1;
else if (parm == KW_all)
- filter.tb = 0;
+ G_filter.tb = 0;
else if (parm != KW_main) {
#if ENABLE_FEATURE_IP_RULE
uint32_t tid;
if (rtnl_rttable_a2n(&tid, *argv))
- invarg(*argv, "table");
- filter.tb = tid;
-#else
- invarg(*argv, "table");
+ invarg_1_to_2(*argv, "table");
+ G_filter.tb = tid;
+#else
+ invarg_1_to_2(*argv, "table");
#endif
}
} else if (arg == KW_cache) {
/* The command 'ip route flush cache' is used by OpenSWAN.
* Assuming it's a synonym for 'ip route flush table cache' */
- filter.tb = -1;
+ G_filter.tb = -1;
+ } else if (arg == KW_scope) {
+ uint32_t scope;
+ NEXT_ARG();
+ G_filter.scopemask = -1;
+ if (rtnl_rtscope_a2n(&scope, *argv)) {
+ if (strcmp(*argv, "all") != 0)
+ invarg_1_to_2(*argv, "scope");
+ scope = RT_SCOPE_NOWHERE;
+ G_filter.scopemask = 0;
+ }
+ G_filter.scope = scope;
} else if (arg == KW_from) {
NEXT_ARG();
parm = index_in_substrings(keywords, *argv);
if (parm == KW_root) {
NEXT_ARG();
- get_prefix(&filter.rsrc, *argv, do_ipv6);
+ get_prefix(&G_filter.rsrc, *argv, do_ipv6);
} else if (parm == KW_match) {
NEXT_ARG();
- get_prefix(&filter.msrc, *argv, do_ipv6);
+ get_prefix(&G_filter.msrc, *argv, do_ipv6);
} else {
if (parm == KW_exact)
NEXT_ARG();
- get_prefix(&filter.msrc, *argv, do_ipv6);
- filter.rsrc = filter.msrc;
+ get_prefix(&G_filter.msrc, *argv, do_ipv6);
+ G_filter.rsrc = G_filter.msrc;
}
} else { /* "to" is the default parameter */
if (arg == KW_to) {
/* parm = arg; - would be more plausible, but we reuse 'arg' here */
if (arg == KW_root) {
NEXT_ARG();
- get_prefix(&filter.rdst, *argv, do_ipv6);
+ get_prefix(&G_filter.rdst, *argv, do_ipv6);
} else if (arg == KW_match) {
NEXT_ARG();
- get_prefix(&filter.mdst, *argv, do_ipv6);
+ get_prefix(&G_filter.mdst, *argv, do_ipv6);
} else { /* "to exact" is the default */
if (arg == KW_exact)
NEXT_ARG();
- get_prefix(&filter.mdst, *argv, do_ipv6);
- filter.rdst = filter.mdst;
+ get_prefix(&G_filter.mdst, *argv, do_ipv6);
+ G_filter.rdst = G_filter.mdst;
}
}
argv++;
}
- if (do_ipv6 == AF_UNSPEC && filter.tb) {
+ if (do_ipv6 == AF_UNSPEC && G_filter.tb) {
do_ipv6 = AF_INET;
}
if (id) {
idx = xll_name_to_index(id);
- filter.iif = idx;
- filter.iifmask = -1;
+ G_filter.iif = idx;
}
if (od) {
idx = xll_name_to_index(od);
- filter.oif = idx;
- filter.oifmask = -1;
+ G_filter.oif = idx;
}
}
if (flush) {
char flushb[4096-512];
- if (filter.tb == -1) { /* "flush table cache" */
+ if (G_filter.tb == -1) { /* "flush table cache" */
if (do_ipv6 != AF_INET6)
iproute_flush_cache();
if (do_ipv6 == AF_INET)
return 0;
}
- filter.flushb = flushb;
- filter.flushp = 0;
- filter.flushe = sizeof(flushb);
- filter.rth = &rth;
+ G_filter.flushb = flushb;
+ G_filter.flushp = 0;
+ G_filter.flushe = sizeof(flushb);
+ G_filter.rth = &rth;
for (;;) {
xrtnl_wilddump_request(&rth, do_ipv6, RTM_GETROUTE);
- filter.flushed = 0;
- xrtnl_dump_filter(&rth, print_route, stdout);
- if (filter.flushed == 0)
+ G_filter.flushed = 0;
+ xrtnl_dump_filter(&rth, print_route, NULL);
+ if (G_filter.flushed == 0)
return 0;
if (flush_update())
return 1;
}
}
- if (filter.tb != -1) {
+ if (G_filter.tb != -1) {
xrtnl_wilddump_request(&rth, do_ipv6, RTM_GETROUTE);
} else if (rtnl_rtcache_request(&rth, do_ipv6) < 0) {
- bb_perror_msg_and_die("cannot send dump request");
+ bb_simple_perror_msg_and_die("can't send dump request");
}
- xrtnl_dump_filter(&rth, print_route, stdout);
+ xrtnl_dump_filter(&rth, print_route, NULL);
return 0;
}
iproute_reset_filter();
req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct rtmsg));
- req.n.nlmsg_flags = NLM_F_REQUEST;
- req.n.nlmsg_type = RTM_GETROUTE;
+ if (NLM_F_REQUEST)
+ req.n.nlmsg_flags = NLM_F_REQUEST;
+ if (RTM_GETROUTE)
+ req.n.nlmsg_type = RTM_GETROUTE;
req.r.rtm_family = preferred_family;
- req.r.rtm_table = 0;
- req.r.rtm_protocol = 0;
- req.r.rtm_scope = 0;
- req.r.rtm_type = 0;
- req.r.rtm_src_len = 0;
- req.r.rtm_dst_len = 0;
- req.r.rtm_tos = 0;
+ /*req.r.rtm_table = 0; - memset did this already */
+ /*req.r.rtm_protocol = 0;*/
+ /*req.r.rtm_scope = 0;*/
+ /*req.r.rtm_type = 0;*/
+ /*req.r.rtm_src_len = 0;*/
+ /*req.r.rtm_dst_len = 0;*/
+ /*req.r.rtm_tos = 0;*/
while (*argv) {
switch (index_in_strings(options, *argv)) {
}
req.r.rtm_dst_len = addr.bitlen;
}
- argv++;
}
+ argv++;
}
if (req.r.rtm_dst_len == 0) {
- bb_error_msg_and_die("need at least destination address");
+ bb_simple_error_msg_and_die("need at least destination address");
}
xrtnl_open(&rth);
int len = req.n.nlmsg_len;
struct rtattr * tb[RTA_MAX+1];
- print_route(NULL, &req.n, (void*)stdout);
+ print_route(NULL, &req.n, NULL);
if (req.n.nlmsg_type != RTM_NEWROUTE) {
- bb_error_msg_and_die("not a route?");
+ bb_simple_error_msg_and_die("not a route?");
}
len -= NLMSG_LENGTH(sizeof(*r));
if (len < 0) {
bb_error_msg_and_die("wrong len %d", len);
}
- memset(tb, 0, sizeof(tb));
+ //memset(tb, 0, sizeof(tb)); - parse_rtattr does this
parse_rtattr(tb, RTA_MAX, RTM_RTA(r), len);
if (tb[RTA_PREFSRC]) {
tb[RTA_PREFSRC]->rta_type = RTA_SRC;
r->rtm_src_len = 8*RTA_PAYLOAD(tb[RTA_PREFSRC]);
} else if (!tb[RTA_SRC]) {
- bb_error_msg_and_die("failed to connect the route");
+ bb_simple_error_msg_and_die("can't connect the route");
}
if (!odev && tb[RTA_OIF]) {
tb[RTA_OIF]->rta_type = 0;
return 2;
}
}
- print_route(NULL, &req.n, (void*)stdout);
+ print_route(NULL, &req.n, NULL);
return 0;
}
/* Return value becomes exitcode. It's okay to not return at all */
-int do_iproute(char **argv)
+int FAST_FUNC do_iproute(char **argv)
{
static const char ip_route_commands[] ALIGN1 =
- /*0-3*/ "add\0""append\0""change\0""chg\0"
- /*4-7*/ "delete\0""get\0""list\0""show\0"
- /*8..*/ "prepend\0""replace\0""test\0""flush\0";
+ "a\0""add\0""append\0""change\0""chg\0"
+ "delete\0""get\0""list\0""show\0"
+ "prepend\0""replace\0""test\0""flush\0"
+ ;
+ enum {
+ CMD_a = 0, CMD_add, CMD_append, CMD_change, CMD_chg,
+ CMD_delete, CMD_get, CMD_list, CMD_show,
+ CMD_prepend, CMD_replace, CMD_test, CMD_flush,
+ };
int command_num;
unsigned flags = 0;
int cmd = RTM_NEWROUTE;
+ INIT_G();
+
if (!*argv)
return iproute_list_or_flush(argv, 0);
command_num = index_in_substrings(ip_route_commands, *argv);
switch (command_num) {
- case 0: /* add */
+ case CMD_a:
+ case CMD_add:
flags = NLM_F_CREATE|NLM_F_EXCL;
break;
- case 1: /* append */
+ case CMD_append:
flags = NLM_F_CREATE|NLM_F_APPEND;
break;
- case 2: /* change */
- case 3: /* chg */
+ case CMD_change:
+ case CMD_chg:
flags = NLM_F_REPLACE;
break;
- case 4: /* delete */
+ case CMD_delete:
cmd = RTM_DELROUTE;
break;
- case 5: /* get */
- return iproute_get(argv+1);
- case 6: /* list */
- case 7: /* show */
- return iproute_list_or_flush(argv+1, 0);
- case 8: /* prepend */
+ case CMD_get:
+ return iproute_get(argv + 1);
+ case CMD_list:
+ case CMD_show:
+ return iproute_list_or_flush(argv + 1, 0);
+ case CMD_prepend:
flags = NLM_F_CREATE;
break;
- case 9: /* replace */
+ case CMD_replace:
flags = NLM_F_CREATE|NLM_F_REPLACE;
break;
- case 10: /* test */
+ case CMD_test:
flags = NLM_F_EXCL;
break;
- case 11: /* flush */
- return iproute_list_or_flush(argv+1, 1);
+ case CMD_flush:
+ return iproute_list_or_flush(argv + 1, 1);
default:
- bb_error_msg_and_die("unknown command %s", *argv);
+ invarg_1_to_2(*argv, applet_name);
}
- return iproute_modify(cmd, flags, argv+1);
+ return iproute_modify(cmd, flags, argv + 1);
}
projects / oweals / busybox.git / blobdiff