*
* Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
*
- *
- * Changes:
- *
- * Rani Assaf <rani@magic.metawire.com> 980929: resolve addresses
*/
#include <stdio.h>
#include <netinet/ip.h>
#include <arpa/inet.h>
#include <string.h>
+#include <linux/fib_rules.h>
#include "rt_names.h"
#include "utils.h"
+#include "ip_common.h"
+
+extern struct rtnl_handle rth;
static void usage(void) __attribute__((noreturn));
static void usage(void)
{
fprintf(stderr, "Usage: ip rule [ list | add | del | flush ] SELECTOR ACTION\n");
- fprintf(stderr, "SELECTOR := [ from PREFIX ] [ to PREFIX ] [ tos TOS ] [ fwmark FWMARK ]\n");
- fprintf(stderr, " [ dev STRING ] [ pref NUMBER ]\n");
+ fprintf(stderr, "SELECTOR := [ not ] [ from PREFIX ] [ to PREFIX ] [ tos TOS ] [ fwmark FWMARK[/MASK] ]\n");
+ fprintf(stderr, " [ iif STRING ] [ oif STRING ] [ pref NUMBER ]\n");
fprintf(stderr, "ACTION := [ table TABLE_ID ]\n");
fprintf(stderr, " [ prohibit | reject | unreachable ]\n");
fprintf(stderr, " [ realms [SRCREALM/]DSTREALM ]\n");
+ fprintf(stderr, " [ goto NUMBER ]\n");
fprintf(stderr, "TABLE_ID := [ local | main | default | NUMBER ]\n");
exit(-1);
}
-static int print_rule(const struct sockaddr_nl *who, struct nlmsghdr *n,
- void *arg)
+int print_rule(const struct sockaddr_nl *who, struct nlmsghdr *n, void *arg)
{
FILE *fp = (FILE*)arg;
struct rtmsg *r = NLMSG_DATA(n);
int len = n->nlmsg_len;
int host_len = -1;
- struct rtattr * tb[RTA_MAX+1];
+ __u32 table;
+ struct rtattr * tb[FRA_MAX+1];
char abuf[256];
SPRINT_BUF(b1);
- if (n->nlmsg_type != RTM_NEWRULE)
+ if (n->nlmsg_type != RTM_NEWRULE && n->nlmsg_type != RTM_DELRULE)
return 0;
len -= NLMSG_LENGTH(sizeof(*r));
if (len < 0)
return -1;
- memset(tb, 0, sizeof(tb));
- parse_rtattr(tb, RTA_MAX, RTM_RTA(r), len);
+ parse_rtattr(tb, FRA_MAX, RTM_RTA(r), len);
if (r->rtm_family == AF_INET)
host_len = 32;
else if (r->rtm_family == AF_IPX)
host_len = 80;
- if (tb[RTA_PRIORITY])
- fprintf(fp, "%u:\t", *(unsigned*)RTA_DATA(tb[RTA_PRIORITY]));
+ if (n->nlmsg_type == RTM_DELRULE)
+ fprintf(fp, "Deleted ");
+
+ if (tb[FRA_PRIORITY])
+ fprintf(fp, "%u:\t", *(unsigned*)RTA_DATA(tb[FRA_PRIORITY]));
else
fprintf(fp, "0:\t");
- if (tb[RTA_SRC]) {
+ if (r->rtm_flags & FIB_RULE_INVERT)
+ fprintf(fp, "not ");
+
+ if (tb[FRA_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]),
+ RTA_PAYLOAD(tb[FRA_SRC]),
+ RTA_DATA(tb[FRA_SRC]),
abuf, sizeof(abuf)),
r->rtm_src_len
);
} else {
fprintf(fp, "from %s ", format_host(r->rtm_family,
- RTA_PAYLOAD(tb[RTA_SRC]),
- RTA_DATA(tb[RTA_SRC]),
+ RTA_PAYLOAD(tb[FRA_SRC]),
+ RTA_DATA(tb[FRA_SRC]),
abuf, sizeof(abuf))
);
}
fprintf(fp, "from all ");
}
- if (tb[RTA_DST]) {
+ if (tb[FRA_DST]) {
if (r->rtm_dst_len != host_len) {
fprintf(fp, "to %s/%u ", rt_addr_n2a(r->rtm_family,
- RTA_PAYLOAD(tb[RTA_DST]),
- RTA_DATA(tb[RTA_DST]),
+ RTA_PAYLOAD(tb[FRA_DST]),
+ RTA_DATA(tb[FRA_DST]),
abuf, sizeof(abuf)),
r->rtm_dst_len
);
} else {
fprintf(fp, "to %s ", format_host(r->rtm_family,
- RTA_PAYLOAD(tb[RTA_DST]),
- RTA_DATA(tb[RTA_DST]),
+ RTA_PAYLOAD(tb[FRA_DST]),
+ RTA_DATA(tb[FRA_DST]),
abuf, sizeof(abuf)));
}
} else if (r->rtm_dst_len) {
SPRINT_BUF(b1);
fprintf(fp, "tos %s ", rtnl_dsfield_n2a(r->rtm_tos, b1, sizeof(b1)));
}
- if (tb[RTA_PROTOINFO]) {
- fprintf(fp, "fwmark %#x ", *(__u32*)RTA_DATA(tb[RTA_PROTOINFO]));
+
+ if (tb[FRA_FWMARK] || tb[FRA_FWMASK]) {
+ __u32 mark = 0, mask = 0;
+
+ if (tb[FRA_FWMARK])
+ mark = rta_getattr_u32(tb[FRA_FWMARK]);
+
+ if (tb[FRA_FWMASK] &&
+ (mask = rta_getattr_u32(tb[FRA_FWMASK])) != 0xFFFFFFFF)
+ fprintf(fp, "fwmark 0x%x/0x%x ", mark, mask);
+ else
+ fprintf(fp, "fwmark 0x%x ", mark);
+ }
+
+ if (tb[FRA_IFNAME]) {
+ fprintf(fp, "iif %s ", rta_getattr_str(tb[FRA_IFNAME]));
+ if (r->rtm_flags & FIB_RULE_IIF_DETACHED)
+ fprintf(fp, "[detached] ");
}
- if (tb[RTA_IIF]) {
- fprintf(fp, "iif %s ", (char*)RTA_DATA(tb[RTA_IIF]));
+ if (tb[FRA_OIFNAME]) {
+ fprintf(fp, "oif %s ", rta_getattr_str(tb[FRA_OIFNAME]));
+ if (r->rtm_flags & FIB_RULE_OIF_DETACHED)
+ fprintf(fp, "[detached] ");
}
- if (r->rtm_table)
- fprintf(fp, "lookup %s ", rtnl_rttable_n2a(r->rtm_table, b1, sizeof(b1)));
+ table = rtm_get_table(r, tb);
+ if (table)
+ fprintf(fp, "lookup %s ", rtnl_rttable_n2a(table, b1, sizeof(b1)));
- if (tb[RTA_FLOW]) {
- __u32 to = *(__u32*)RTA_DATA(tb[RTA_FLOW]);
+ if (tb[FRA_FLOW]) {
+ __u32 to = rta_getattr_u32(tb[FRA_FLOW]);
__u32 from = to>>16;
to &= 0xFFFF;
if (from) {
if (r->rtm_type == RTN_NAT) {
if (tb[RTA_GATEWAY]) {
- fprintf(fp, "map-to %s ",
+ fprintf(fp, "map-to %s ",
format_host(r->rtm_family,
RTA_PAYLOAD(tb[RTA_GATEWAY]),
RTA_DATA(tb[RTA_GATEWAY]),
abuf, sizeof(abuf)));
} else
fprintf(fp, "masquerade");
- } else if (r->rtm_type != RTN_UNICAST)
+ } else if (r->rtm_type == FR_ACT_GOTO) {
+ fprintf(fp, "goto ");
+ if (tb[FRA_GOTO])
+ fprintf(fp, "%u", rta_getattr_u32(tb[FRA_GOTO]));
+ else
+ fprintf(fp, "none");
+ if (r->rtm_flags & FIB_RULE_UNRESOLVED)
+ fprintf(fp, " [unresolved]");
+ } else if (r->rtm_type == FR_ACT_NOP)
+ fprintf(fp, "nop");
+ else if (r->rtm_type != RTN_UNICAST)
fprintf(fp, "%s", rtnl_rtntype_n2a(r->rtm_type, b1, sizeof(b1)));
fprintf(fp, "\n");
static int iprule_list(int argc, char **argv)
{
- struct rtnl_handle rth;
int af = preferred_family;
if (af == AF_UNSPEC)
return -1;
}
- if (rtnl_open(&rth, 0) < 0)
- return 1;
-
if (rtnl_wilddump_request(&rth, af, RTM_GETRULE) < 0) {
perror("Cannot send dump request");
return 1;
}
- if (rtnl_dump_filter(&rth, print_rule, stdout, NULL, NULL) < 0) {
+ if (rtnl_dump_filter(&rth, print_rule, stdout) < 0) {
fprintf(stderr, "Dump terminated\n");
return 1;
}
static int iprule_modify(int cmd, int argc, char **argv)
{
int table_ok = 0;
- struct rtnl_handle rth;
struct {
struct nlmsghdr n;
struct rtmsg r;
req.r.rtm_scope = RT_SCOPE_UNIVERSE;
req.r.rtm_table = 0;
req.r.rtm_type = RTN_UNSPEC;
+ req.r.rtm_flags = 0;
if (cmd == RTM_NEWRULE) {
req.n.nlmsg_flags |= NLM_F_CREATE|NLM_F_EXCL;
}
while (argc > 0) {
- if (strcmp(*argv, "from") == 0) {
+ if (strcmp(*argv, "not") == 0) {
+ req.r.rtm_flags |= FIB_RULE_INVERT;
+ } else if (strcmp(*argv, "from") == 0) {
inet_prefix dst;
NEXT_ARG();
get_prefix(&dst, *argv, req.r.rtm_family);
req.r.rtm_src_len = dst.bitlen;
- addattr_l(&req.n, sizeof(req), RTA_SRC, &dst.data, dst.bytelen);
+ addattr_l(&req.n, sizeof(req), FRA_SRC, &dst.data, dst.bytelen);
} else if (strcmp(*argv, "to") == 0) {
inet_prefix dst;
NEXT_ARG();
get_prefix(&dst, *argv, req.r.rtm_family);
req.r.rtm_dst_len = dst.bitlen;
- addattr_l(&req.n, sizeof(req), RTA_DST, &dst.data, dst.bytelen);
+ addattr_l(&req.n, sizeof(req), FRA_DST, &dst.data, dst.bytelen);
} else if (matches(*argv, "preference") == 0 ||
matches(*argv, "order") == 0 ||
matches(*argv, "priority") == 0) {
NEXT_ARG();
if (get_u32(&pref, *argv, 0))
invarg("preference value is invalid\n", *argv);
- addattr32(&req.n, sizeof(req), RTA_PRIORITY, pref);
- } else if (strcmp(*argv, "tos") == 0) {
+ addattr32(&req.n, sizeof(req), FRA_PRIORITY, pref);
+ } 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, "fwmark") == 0) {
- __u32 fwmark;
+ char *slash;
+ __u32 fwmark, fwmask;
NEXT_ARG();
+ if ((slash = strchr(*argv, '/')) != NULL)
+ *slash = '\0';
if (get_u32(&fwmark, *argv, 0))
invarg("fwmark value is invalid\n", *argv);
- addattr32(&req.n, sizeof(req), RTA_PROTOINFO, fwmark);
+ addattr32(&req.n, sizeof(req), FRA_FWMARK, fwmark);
+ if (slash) {
+ if (get_u32(&fwmask, slash+1, 0))
+ invarg("fwmask value is invalid\n", slash+1);
+ addattr32(&req.n, sizeof(req), FRA_FWMASK, fwmask);
+ }
} else if (matches(*argv, "realms") == 0) {
__u32 realm;
NEXT_ARG();
if (get_rt_realms(&realm, *argv))
invarg("invalid realms\n", *argv);
- addattr32(&req.n, sizeof(req), RTA_FLOW, realm);
+ addattr32(&req.n, sizeof(req), FRA_FLOW, realm);
} else if (matches(*argv, "table") == 0 ||
strcmp(*argv, "lookup") == 0) {
- int tid;
+ __u32 tid;
NEXT_ARG();
if (rtnl_rttable_a2n(&tid, *argv))
invarg("invalid table ID\n", *argv);
- req.r.rtm_table = tid;
+ if (tid < 256)
+ req.r.rtm_table = tid;
+ else {
+ req.r.rtm_table = RT_TABLE_UNSPEC;
+ addattr32(&req.n, sizeof(req), FRA_TABLE, tid);
+ }
table_ok = 1;
} else if (strcmp(*argv, "dev") == 0 ||
strcmp(*argv, "iif") == 0) {
NEXT_ARG();
- addattr_l(&req.n, sizeof(req), RTA_IIF, *argv, strlen(*argv)+1);
+ addattr_l(&req.n, sizeof(req), FRA_IFNAME, *argv, strlen(*argv)+1);
+ } else if (strcmp(*argv, "oif") == 0) {
+ NEXT_ARG();
+ addattr_l(&req.n, sizeof(req), FRA_OIFNAME, *argv, strlen(*argv)+1);
} else if (strcmp(*argv, "nat") == 0 ||
matches(*argv, "map-to") == 0) {
NEXT_ARG();
}
if (matches(*argv, "help") == 0)
usage();
- if (rtnl_rtntype_a2n(&type, *argv))
+ else if (matches(*argv, "goto") == 0) {
+ __u32 target;
+ type = FR_ACT_GOTO;
+ NEXT_ARG();
+ if (get_u32(&target, *argv, 0))
+ invarg("invalid target\n", *argv);
+ addattr32(&req.n, sizeof(req), FRA_GOTO, target);
+ } else if (matches(*argv, "nop") == 0)
+ type = FR_ACT_NOP;
+ else if (rtnl_rtntype_a2n(&type, *argv))
invarg("Failed to parse rule type", *argv);
req.r.rtm_type = type;
+ table_ok = 1;
}
argc--;
argv++;
if (!table_ok && cmd == RTM_NEWRULE)
req.r.rtm_table = RT_TABLE_MAIN;
- if (rtnl_open(&rth, 0) < 0)
- return 1;
-
- if (rtnl_talk(&rth, &req.n, 0, 0, NULL, NULL, NULL) < 0)
+ if (rtnl_talk(&rth, &req.n, 0, 0, NULL) < 0)
return 2;
return 0;
static int flush_rule(const struct sockaddr_nl *who, struct nlmsghdr *n, void *arg)
{
- struct rtnl_handle rth;
+ struct rtnl_handle rth2;
struct rtmsg *r = NLMSG_DATA(n);
int len = n->nlmsg_len;
- struct rtattr * tb[RTA_MAX+1];
+ struct rtattr * tb[FRA_MAX+1];
len -= NLMSG_LENGTH(sizeof(*r));
if (len < 0)
return -1;
- memset(tb, 0, sizeof(tb));
- parse_rtattr(tb, RTA_MAX, RTM_RTA(r), len);
+ parse_rtattr(tb, FRA_MAX, RTM_RTA(r), len);
- if (tb[RTA_PRIORITY]) {
+ if (tb[FRA_PRIORITY]) {
n->nlmsg_type = RTM_DELRULE;
n->nlmsg_flags = NLM_F_REQUEST;
- if (rtnl_open(&rth, 0) < 0)
+ if (rtnl_open(&rth2, 0) < 0)
return -1;
- if (rtnl_talk(&rth, n, 0, 0, NULL, NULL, NULL) < 0)
+ if (rtnl_talk(&rth2, n, 0, 0, NULL) < 0)
return -2;
+
+ rtnl_close(&rth2);
}
return 0;
static int iprule_flush(int argc, char **argv)
{
- struct rtnl_handle rth;
int af = preferred_family;
if (af == AF_UNSPEC)
af = AF_INET;
if (argc > 0) {
- fprintf(stderr, "\"ip rule flush\" need not any arguments.\n");
+ fprintf(stderr, "\"ip rule flush\" does not allow arguments\n");
return -1;
}
- if (rtnl_open(&rth, 0) < 0)
- return 1;
-
if (rtnl_wilddump_request(&rth, af, RTM_GETRULE) < 0) {
perror("Cannot send dump request");
return 1;
}
- if (rtnl_dump_filter(&rth, flush_rule, NULL, NULL, NULL) < 0) {
+ if (rtnl_dump_filter(&rth, flush_rule, NULL) < 0) {
fprintf(stderr, "Flush terminated\n");
return 1;
}
exit(-1);
}
+int do_multirule(int argc, char **argv)
+{
+ switch (preferred_family) {
+ case AF_UNSPEC:
+ case AF_INET:
+ preferred_family = RTNL_FAMILY_IPMR;
+ break;
+ case AF_INET6:
+ preferred_family = RTNL_FAMILY_IP6MR;
+ break;
+ case RTNL_FAMILY_IPMR:
+ case RTNL_FAMILY_IP6MR:
+ break;
+ default:
+ fprintf(stderr, "Multicast rules are only supported for IPv4/IPv6, was: %i\n",
+ preferred_family);
+ exit(-1);
+ }
+
+ return do_iprule(argc, argv);
+}
projects / lisovros / iproute2_canprio.git / blobdiff