projects / mirror_iproute2.git / blame
| Commit | Line | Data |
|---|---|---|
| aba5acdf SH |
1 | /* |
| 2 | * f_fw.c FW filter. | |
| 3 | * | |
| 4 | * This program is free software; you can redistribute it and/or | |
| 5 | * modify it under the terms of the GNU General Public License | |
| 6 | * as published by the Free Software Foundation; either version | |
| 7 | * 2 of the License, or (at your option) any later version. | |
| 8 | * | |
| 9 | * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru> | |
| 10 | * | |
| 11 | */ | |
| 12 | ||
| 13 | #include <stdio.h> | |
| 14 | #include <stdlib.h> | |
| 15 | #include <unistd.h> | |
| 16 | #include <syslog.h> | |
| 17 | #include <fcntl.h> | |
| 18 | #include <sys/socket.h> | |
| 19 | #include <netinet/in.h> | |
| 20 | #include <arpa/inet.h> | |
| 21 | #include <string.h> | |
| 22 | ||
| 23 | #include "utils.h" | |
| 24 | #include "tc_util.h" | |
| 25 | ||
| 26 | static void explain(void) | |
| 27 | { | |
| 28 | fprintf(stderr, "Usage: ... fw [ classid CLASSID ] [ police POLICE_SPEC ]\n"); | |
| 29 | fprintf(stderr, " POLICE_SPEC := ... look at TBF\n"); | |
| 30 | fprintf(stderr, " CLASSID := X:Y\n"); | |
| 31 | } | |
| 32 | ||
| 33 | #define usage() return(-1) | |
| 34 | ||
| 35 | static int fw_parse_opt(struct filter_util *qu, char *handle, int argc, char **argv, struct nlmsghdr *n) | |
| 36 | { | |
| 37 | struct tc_police tp; | |
| 38 | struct tcmsg *t = NLMSG_DATA(n); | |
| 39 | struct rtattr *tail; | |
| 40 | ||
| 41 | memset(&tp, 0, sizeof(tp)); | |
| 42 | ||
| 43 | if (handle) { | |
| 44 | if (get_u32(&t->tcm_handle, handle, 0)) { | |
| 45 | fprintf(stderr, "Illegal \"handle\"\n"); | |
| 46 | return -1; | |
| 47 | } | |
| 48 | } | |
| 49 | ||
| 50 | if (argc == 0) | |
| 51 | return 0; | |
| 52 | ||
| 53 | tail = (struct rtattr*)(((void*)n)+NLMSG_ALIGN(n->nlmsg_len)); | |
| 54 | addattr_l(n, 4096, TCA_OPTIONS, NULL, 0); | |
| 55 | ||
| 56 | while (argc > 0) { | |
| 57 | if (matches(*argv, "classid") == 0 || | |
| 58 | matches(*argv, "flowid") == 0) { | |
| 59 | unsigned handle; | |
| 60 | NEXT_ARG(); | |
| 61 | if (get_tc_classid(&handle, *argv)) { | |
| 62 | fprintf(stderr, "Illegal \"classid\"\n"); | |
| 63 | return -1; | |
| 64 | } | |
| 65 | addattr_l(n, 4096, TCA_FW_CLASSID, &handle, 4); | |
| 66 | } else if (matches(*argv, "police") == 0) { | |
| 67 | NEXT_ARG(); | |
| 68 | if (parse_police(&argc, &argv, TCA_FW_POLICE, n)) { | |
| 69 | fprintf(stderr, "Illegal \"police\"\n"); | |
| 70 | return -1; | |
| 71 | } | |
| 72 | continue; | |
| 73 | } else if (strcmp(*argv, "help") == 0) { | |
| 74 | explain(); | |
| 75 | return -1; | |
| 76 | } else { | |
| 77 | fprintf(stderr, "What is \"%s\"?\n", *argv); | |
| 78 | explain(); | |
| 79 | return -1; | |
| 80 | } | |
| 81 | argc--; argv++; | |
| 82 | } | |
| 83 | tail->rta_len = (((void*)n)+n->nlmsg_len) - (void*)tail; | |
| 84 | return 0; | |
| 85 | } | |
| 86 | ||
| 87 | static int fw_print_opt(struct filter_util *qu, FILE *f, struct rtattr *opt, __u32 handle) | |
| 88 | { | |
| 89 | struct rtattr *tb[TCA_FW_MAX+1]; | |
| 90 | ||
| 91 | if (opt == NULL) | |
| 92 | return 0; | |
| 93 | ||
| 94 | memset(tb, 0, sizeof(tb)); | |
| 95 | if (opt) | |
| 96 | parse_rtattr(tb, TCA_FW_MAX, RTA_DATA(opt), RTA_PAYLOAD(opt)); | |
| 97 | ||
| 98 | if (handle) | |
| 99 | fprintf(f, "handle 0x%x ", handle); | |
| 100 | ||
| 101 | if (tb[TCA_FW_CLASSID]) { | |
| 102 | SPRINT_BUF(b1); | |
| 103 | fprintf(f, "classid %s ", sprint_tc_classid(*(__u32*)RTA_DATA(tb[TCA_FW_CLASSID]), b1)); | |
| 104 | } | |
| 105 | ||
| 106 | if (tb[TCA_FW_POLICE]) | |
| 107 | tc_print_police(f, tb[TCA_FW_POLICE]); | |
| 108 | return 0; | |
| 109 | } | |
| 110 | ||
| 111 | struct filter_util fw_util = { | |
| 112 | NULL, | |
| 113 | "fw", | |
| 114 | fw_parse_opt, | |
| 115 | fw_print_opt, | |
| 116 | }; |