This commit was generated by cvs2svn to compensate for changes in r1650,

[iproute2.git] / tc / f_route.c

diff --git a/tc/f_route.c b/tc/f_route.c
new file mode 100644 (file)
index 0000000..a41b9d5
--- /dev/null
+++ b/tc/f_route.c
@@ -0,0 +1,169 @@
+/*
+ * f_route.c           ROUTE filter.
+ *
+ *             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.
+ *
+ * Authors:    Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <syslog.h>
+#include <fcntl.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <string.h>
+
+#include "utils.h"
+#include "rt_names.h"
+#include "tc_common.h"
+#include "tc_util.h"
+
+static void explain(void)
+{
+       fprintf(stderr, "Usage: ... route [ from REALM | fromif TAG ] [ to REALM ]\n");
+       fprintf(stderr, "                [ flowid CLASSID ] [ police POLICE_SPEC ]\n");
+       fprintf(stderr, "       POLICE_SPEC := ... look at TBF\n");
+       fprintf(stderr, "       CLASSID := X:Y\n");
+}
+
+#define usage() return(-1)
+
+static int route_parse_opt(struct filter_util *qu, char *handle, int argc, char **argv, struct nlmsghdr *n)
+{
+       struct tc_police tp;
+       struct tcmsg *t = NLMSG_DATA(n);
+       struct rtattr *tail;
+       __u32 fh = 0xFFFF8000;
+       __u32 order = 0;
+
+       memset(&tp, 0, sizeof(tp));
+
+       if (handle) {
+               if (get_u32(&t->tcm_handle, handle, 0)) {
+                       fprintf(stderr, "Illegal \"handle\"\n");
+                       return -1;
+               }
+       }
+
+       if (argc == 0)
+               return 0;
+
+       tail = NLMSG_TAIL(n);
+       addattr_l(n, 4096, TCA_OPTIONS, NULL, 0);
+
+       while (argc > 0) {
+               if (matches(*argv, "to") == 0) {
+                       __u32 id;
+                       NEXT_ARG();
+                       if (rtnl_rtrealm_a2n(&id, *argv)) {
+                               fprintf(stderr, "Illegal \"to\"\n");
+                               return -1;
+                       }
+                       addattr_l(n, 4096, TCA_ROUTE4_TO, &id, 4);
+                       fh &= ~0x80FF;
+                       fh |= id&0xFF;
+               } else if (matches(*argv, "from") == 0) {
+                       __u32 id;
+                       NEXT_ARG();
+                       if (rtnl_rtrealm_a2n(&id, *argv)) {
+                               fprintf(stderr, "Illegal \"from\"\n");
+                               return -1;
+                       }
+                       addattr_l(n, 4096, TCA_ROUTE4_FROM, &id, 4);
+                       fh &= 0xFFFF;
+                       fh |= id<<16;
+               } else if (matches(*argv, "fromif") == 0) {
+                       __u32 id;
+                       NEXT_ARG();
+                       ll_init_map(&rth);
+                       if ((id=ll_name_to_index(*argv)) <= 0) {
+                               fprintf(stderr, "Illegal \"fromif\"\n");
+                               return -1;
+                       }
+                       addattr_l(n, 4096, TCA_ROUTE4_IIF, &id, 4);
+                       fh &= 0xFFFF;
+                       fh |= (0x8000|id)<<16;
+               } else if (matches(*argv, "classid") == 0 ||
+                          strcmp(*argv, "flowid") == 0) {
+                       unsigned handle;
+                       NEXT_ARG();
+                       if (get_tc_classid(&handle, *argv)) {
+                               fprintf(stderr, "Illegal \"classid\"\n");
+                               return -1;
+                       }
+                       addattr_l(n, 4096, TCA_ROUTE4_CLASSID, &handle, 4);
+               } else if (matches(*argv, "police") == 0) {
+                       NEXT_ARG();
+                       if (parse_police(&argc, &argv, TCA_ROUTE4_POLICE, n)) {
+                               fprintf(stderr, "Illegal \"police\"\n");
+                               return -1;
+                       }
+                       continue;
+               } else if (matches(*argv, "order") == 0) {
+                       NEXT_ARG();
+                       if (get_u32(&order, *argv, 0)) {
+                               fprintf(stderr, "Illegal \"order\"\n");
+                               return -1;
+                       }
+               } else if (strcmp(*argv, "help") == 0) {
+                       explain();
+                       return -1;
+               } else {
+                       fprintf(stderr, "What is \"%s\"?\n", *argv);
+                       explain();
+                       return -1;
+               }
+               argc--; argv++;
+       }
+       tail->rta_len = (void *) NLMSG_TAIL(n) - (void *) tail;
+       if (order) {
+               fh &= ~0x7F00;
+               fh |= (order<<8)&0x7F00;
+       }
+       if (!t->tcm_handle)
+               t->tcm_handle = fh;
+       return 0;
+}
+
+static int route_print_opt(struct filter_util *qu, FILE *f, struct rtattr *opt, __u32 handle)
+{
+       struct rtattr *tb[TCA_ROUTE4_MAX+1];
+       SPRINT_BUF(b1);
+
+       if (opt == NULL)
+               return 0;
+
+       parse_rtattr_nested(tb, TCA_ROUTE4_MAX, opt);
+
+       if (handle)
+               fprintf(f, "fh 0x%08x ", handle);
+       if (handle&0x7F00)
+               fprintf(f, "order %d ", (handle>>8)&0x7F);
+
+       if (tb[TCA_ROUTE4_CLASSID]) {
+               SPRINT_BUF(b1);
+               fprintf(f, "flowid %s ", sprint_tc_classid(*(__u32*)RTA_DATA(tb[TCA_ROUTE4_CLASSID]), b1));
+       }
+       if (tb[TCA_ROUTE4_TO])
+               fprintf(f, "to %s ", rtnl_rtrealm_n2a(*(__u32*)RTA_DATA(tb[TCA_ROUTE4_TO]), b1, sizeof(b1)));
+       if (tb[TCA_ROUTE4_FROM])
+               fprintf(f, "from %s ", rtnl_rtrealm_n2a(*(__u32*)RTA_DATA(tb[TCA_ROUTE4_FROM]), b1, sizeof(b1)));
+       if (tb[TCA_ROUTE4_IIF])
+               fprintf(f, "fromif %s", ll_index_to_name(*(int*)RTA_DATA(tb[TCA_ROUTE4_IIF])));
+       if (tb[TCA_ROUTE4_POLICE])
+               tc_print_police(f, tb[TCA_ROUTE4_POLICE]);
+       return 0;
+}
+
+struct filter_util route_filter_util = {
+       .id = "route",
+       .parse_fopt = route_parse_opt,
+       .print_fopt = route_print_opt,
+};