(Logical change 1.3)

[mirror_iproute2.git] / tc / f_tcindex.c

diff --git a/tc/f_tcindex.c b/tc/f_tcindex.c
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..59397487df4674cd0599a71f5a7d386f91534663 100644 (file)
--- a/tc/f_tcindex.c
+++ b/tc/f_tcindex.c
@@ -0,0 +1,186 @@
+/*
+ * f_tcindex.c         Traffic control index filter
+ *
+ * Written 1998,1999 by Werner Almesberger
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <syslog.h>
+#include <fcntl.h>
+#include <string.h>
+#include <netinet/in.h>
+
+#include "utils.h"
+#include "tc_util.h"
+
+static void explain(void)
+{
+       fprintf(stderr," Usage: ... tcindex [ hash SIZE ] [ mask MASK ]"
+           " [ shift SHIFT ]\n");
+       fprintf(stderr,"                    [ pass_on | fall_through ]\n");
+       fprintf(stderr,"                    [ classid CLASSID ] "
+           "[ police POLICE_SPEC ]\n");
+}
+
+
+#define usage() return(-1)
+
+
+static int tcindex_parse_opt(struct filter_util *qu, char *handle, int argc,
+    char **argv, struct nlmsghdr *n)
+{
+       struct tcmsg *t = NLMSG_DATA(n);
+       struct rtattr *tail;
+       char *end;
+
+       if (handle) {
+               t->tcm_handle = strtoul(handle,&end,0);
+               if (*end) {
+                       fprintf(stderr, "Illegal filter ID\n");
+                       return -1;
+               }
+       }
+       if (!argc) return 0;
+       tail = (struct rtattr*)(((void*)n)+NLMSG_ALIGN(n->nlmsg_len));
+       addattr_l(n,4096,TCA_OPTIONS,NULL,0);
+       while (argc) {
+               if (!strcmp(*argv,"hash")) {
+                       int hash;
+
+                       NEXT_ARG();
+                       hash = strtoul(*argv,&end,0);
+                       if (*end || !hash || hash > 0x10000) {
+                               explain();
+                               return -1;
+                       }
+                       addattr_l(n,4096,TCA_TCINDEX_HASH,&hash,sizeof(hash));
+               }
+               else if (!strcmp(*argv,"mask")) {
+                       __u16 mask;
+
+                       NEXT_ARG();
+                       mask = strtoul(*argv,&end,0);
+                       if (*end) {
+                               explain();
+                               return -1;
+                       }
+                       addattr_l(n,4096,TCA_TCINDEX_MASK,&mask,sizeof(mask));
+               }
+               else if (!strcmp(*argv,"shift")) {
+                       int shift;
+
+                       NEXT_ARG();
+                       shift = strtoul(*argv,&end,0);
+                       if (*end) {
+                               explain();
+                               return -1;
+                       }
+                       addattr_l(n,4096,TCA_TCINDEX_SHIFT,&shift,
+                           sizeof(shift));
+               }
+               else if (!strcmp(*argv,"fall_through")) {
+                       int value = 1;
+
+                       addattr_l(n,4096,TCA_TCINDEX_FALL_THROUGH,&value,
+                           sizeof(value));
+               }
+               else if (!strcmp(*argv,"pass_on")) {
+                       int value = 0;
+
+                       addattr_l(n,4096,TCA_TCINDEX_FALL_THROUGH,&value,
+                           sizeof(value));
+               }
+               else if (!strcmp(*argv,"classid")) {
+                       __u32 handle;
+
+                       NEXT_ARG();
+                       if (get_tc_classid(&handle,*argv)) {
+                               fprintf(stderr, "Illegal \"classid\"\n");
+                               return -1;
+                       }
+                       addattr_l(n, 4096, TCA_TCINDEX_CLASSID, &handle, 4);
+               }
+               else if (!strcmp(*argv,"police")) {
+                       NEXT_ARG();
+                       if (parse_police(&argc, &argv, TCA_TCINDEX_POLICE, n)) {
+                               fprintf(stderr, "Illegal \"police\"\n");
+                               return -1;
+                       }
+                       continue;
+               }
+               else {
+                       explain();
+                       return -1;
+               }
+               argc--;
+               argv++;
+       }
+       tail->rta_len = (((void*)n)+n->nlmsg_len) - (void*)tail;
+       return 0;
+}
+
+
+static int tcindex_print_opt(struct filter_util *qu, FILE *f,
+     struct rtattr *opt, __u32 handle)
+{
+       struct rtattr *tb[TCA_TCINDEX_MAX+1];
+
+       if (!opt) return 0;
+
+       memset(tb, 0, sizeof(tb));
+       parse_rtattr(tb, TCA_TCINDEX_MAX, RTA_DATA(opt), RTA_PAYLOAD(opt));
+
+       if (handle != ~0) fprintf(f,"handle 0x%04x ",handle);
+       if (tb[TCA_TCINDEX_HASH]) {
+               __u16 hash;
+
+               if (RTA_PAYLOAD(tb[TCA_TCINDEX_HASH]) < sizeof(hash))
+                       return -1;
+               hash = *(__u16 *) RTA_DATA(tb[TCA_TCINDEX_HASH]);
+               fprintf(f,"hash %d ",hash);
+       }
+       if (tb[TCA_TCINDEX_MASK]) {
+               __u16 mask;
+
+               if (RTA_PAYLOAD(tb[TCA_TCINDEX_MASK]) < sizeof(mask))
+                       return -1;
+               mask = *(__u16 *) RTA_DATA(tb[TCA_TCINDEX_MASK]);
+               fprintf(f,"mask 0x%04x ",mask);
+       }
+       if (tb[TCA_TCINDEX_SHIFT]) {
+               int shift;
+
+               if (RTA_PAYLOAD(tb[TCA_TCINDEX_SHIFT]) < sizeof(shift))
+                       return -1;
+               shift = *(int *) RTA_DATA(tb[TCA_TCINDEX_SHIFT]);
+               fprintf(f,"shift %d ",shift);
+       }
+       if (tb[TCA_TCINDEX_FALL_THROUGH]) {
+               int fall_through;
+
+               if (RTA_PAYLOAD(tb[TCA_TCINDEX_FALL_THROUGH]) <
+                   sizeof(fall_through))
+                       return -1;
+               fall_through = *(int *) RTA_DATA(tb[TCA_TCINDEX_FALL_THROUGH]);
+               fprintf(f,fall_through ? "fall_through " : "pass_on ");
+       }
+       if (tb[TCA_TCINDEX_CLASSID]) {
+               SPRINT_BUF(b1);
+               fprintf(f, "classid %s ",sprint_tc_classid(*(__u32 *)
+                   RTA_DATA(tb[TCA_TCINDEX_CLASSID]), b1));
+       }
+       if (tb[TCA_TCINDEX_POLICE]) {
+               fprintf(f, "\n");
+               tc_print_police(f, tb[TCA_TCINDEX_POLICE]);
+       }
+       return 0;
+}
+
+struct filter_util tcindex_util = {
+       NULL,
+       "tcindex",
+       tcindex_parse_opt,
+       tcindex_print_opt,
+};