]>
Commit | Line | Data |
---|---|---|
d5cbf3ff YG |
1 | /* |
2 | * f_matchall.c Match-all Classifier | |
3 | * | |
4 | * This program is free software; you can distribute 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: Jiri Pirko <jiri@mellanox.com>, Yotam Gigi <yotamg@mellanox.com> | |
10 | * | |
11 | */ | |
12 | ||
13 | #include <stdio.h> | |
14 | #include <stdlib.h> | |
15 | #include <unistd.h> | |
d5cbf3ff YG |
16 | #include <fcntl.h> |
17 | #include <sys/socket.h> | |
18 | #include <netinet/in.h> | |
19 | #include <arpa/inet.h> | |
20 | #include <string.h> | |
21 | #include <linux/if.h> | |
22 | ||
23 | #include "utils.h" | |
24 | #include "tc_util.h" | |
25 | ||
26 | static void explain(void) | |
27 | { | |
8589eb4e MC |
28 | fprintf(stderr, |
29 | "Usage: ... matchall [skip_sw | skip_hw]\n" | |
30 | " [ action ACTION_SPEC ] [ classid CLASSID ]\n" | |
31 | "\n" | |
32 | "Where: SELECTOR := SAMPLE SAMPLE ...\n" | |
33 | " FILTERID := X:Y:Z\n" | |
34 | " ACTION_SPEC := ... look at individual actions\n" | |
35 | "\n" | |
36 | "NOTE: CLASSID is parsed as hexadecimal input.\n"); | |
d5cbf3ff YG |
37 | } |
38 | ||
39 | static int matchall_parse_opt(struct filter_util *qu, char *handle, | |
40 | int argc, char **argv, struct nlmsghdr *n) | |
41 | { | |
42 | struct tcmsg *t = NLMSG_DATA(n); | |
43 | struct rtattr *tail; | |
44 | __u32 flags = 0; | |
45 | long h = 0; | |
46 | ||
47 | if (handle) { | |
48 | h = strtol(handle, NULL, 0); | |
49 | if (h == LONG_MIN || h == LONG_MAX) { | |
50 | fprintf(stderr, "Illegal handle \"%s\", must be numeric.\n", | |
51 | handle); | |
52 | return -1; | |
53 | } | |
54 | } | |
55 | t->tcm_handle = h; | |
56 | ||
57 | if (argc == 0) | |
58 | return 0; | |
59 | ||
60 | tail = (struct rtattr *)(((void *)n)+NLMSG_ALIGN(n->nlmsg_len)); | |
61 | addattr_l(n, MAX_MSG, TCA_OPTIONS, NULL, 0); | |
62 | ||
63 | while (argc > 0) { | |
64 | if (matches(*argv, "classid") == 0 || | |
65 | strcmp(*argv, "flowid") == 0) { | |
66 | unsigned int handle; | |
67 | ||
68 | NEXT_ARG(); | |
69 | if (get_tc_classid(&handle, *argv)) { | |
70 | fprintf(stderr, "Illegal \"classid\"\n"); | |
71 | return -1; | |
72 | } | |
73 | addattr_l(n, MAX_MSG, TCA_MATCHALL_CLASSID, &handle, 4); | |
74 | } else if (matches(*argv, "action") == 0) { | |
75 | NEXT_ARG(); | |
76 | if (parse_action(&argc, &argv, TCA_MATCHALL_ACT, n)) { | |
77 | fprintf(stderr, "Illegal \"action\"\n"); | |
78 | return -1; | |
79 | } | |
80 | continue; | |
81 | ||
82 | } else if (strcmp(*argv, "skip_hw") == 0) { | |
83 | NEXT_ARG(); | |
84 | flags |= TCA_CLS_FLAGS_SKIP_HW; | |
85 | continue; | |
86 | } else if (strcmp(*argv, "skip_sw") == 0) { | |
87 | NEXT_ARG(); | |
88 | flags |= TCA_CLS_FLAGS_SKIP_SW; | |
89 | continue; | |
90 | } else if (strcmp(*argv, "help") == 0) { | |
91 | explain(); | |
92 | return -1; | |
93 | } else { | |
94 | fprintf(stderr, "What is \"%s\"?\n", *argv); | |
95 | explain(); | |
96 | return -1; | |
97 | } | |
98 | argc--; argv++; | |
99 | } | |
100 | ||
101 | if (flags) { | |
102 | if (!(flags ^ (TCA_CLS_FLAGS_SKIP_HW | | |
103 | TCA_CLS_FLAGS_SKIP_SW))) { | |
104 | fprintf(stderr, | |
105 | "skip_hw and skip_sw are mutually exclusive\n"); | |
106 | return -1; | |
107 | } | |
108 | addattr_l(n, MAX_MSG, TCA_MATCHALL_FLAGS, &flags, 4); | |
109 | } | |
110 | ||
111 | tail->rta_len = (((void *)n)+n->nlmsg_len) - (void *)tail; | |
112 | return 0; | |
113 | } | |
114 | ||
115 | static int matchall_print_opt(struct filter_util *qu, FILE *f, | |
116 | struct rtattr *opt, __u32 handle) | |
117 | { | |
118 | struct rtattr *tb[TCA_MATCHALL_MAX+1]; | |
b0ca46a1 | 119 | struct tc_matchall_pcnt *pf = NULL; |
d5cbf3ff YG |
120 | |
121 | if (opt == NULL) | |
122 | return 0; | |
123 | ||
124 | parse_rtattr_nested(tb, TCA_MATCHALL_MAX, opt); | |
125 | ||
126 | if (handle) | |
619ca351 | 127 | print_uint(PRINT_ANY, "handle", "handle 0x%x ", handle); |
d5cbf3ff YG |
128 | |
129 | if (tb[TCA_MATCHALL_CLASSID]) { | |
130 | SPRINT_BUF(b1); | |
619ca351 | 131 | print_string(PRINT_ANY, "flowid", "flowid %s ", |
d5cbf3ff YG |
132 | sprint_tc_classid(rta_getattr_u32(tb[TCA_MATCHALL_CLASSID]), b1)); |
133 | } | |
134 | ||
afdc1fed OG |
135 | if (tb[TCA_MATCHALL_FLAGS]) { |
136 | __u32 flags = rta_getattr_u32(tb[TCA_MATCHALL_FLAGS]); | |
137 | ||
138 | if (flags & TCA_CLS_FLAGS_SKIP_HW) | |
619ca351 | 139 | print_bool(PRINT_ANY, "skip_hw", "\n skip_hw", true); |
afdc1fed | 140 | if (flags & TCA_CLS_FLAGS_SKIP_SW) |
619ca351 | 141 | print_bool(PRINT_ANY, "skip_sw", "\n skip_sw", true); |
e57285b8 OG |
142 | |
143 | if (flags & TCA_CLS_FLAGS_IN_HW) | |
619ca351 | 144 | print_bool(PRINT_ANY, "in_hw", "\n in_hw", true); |
e57285b8 | 145 | else if (flags & TCA_CLS_FLAGS_NOT_IN_HW) |
619ca351 | 146 | print_bool(PRINT_ANY, "not_in_hw", "\n not_in_hw", true); |
afdc1fed OG |
147 | } |
148 | ||
b0ca46a1 CW |
149 | if (tb[TCA_MATCHALL_PCNT]) { |
150 | if (RTA_PAYLOAD(tb[TCA_MATCHALL_PCNT]) < sizeof(*pf)) { | |
151 | print_string(PRINT_FP, NULL, "Broken perf counters\n", NULL); | |
152 | return -1; | |
153 | } | |
154 | pf = RTA_DATA(tb[TCA_MATCHALL_PCNT]); | |
155 | } | |
156 | ||
157 | if (show_stats && NULL != pf) | |
158 | print_u64(PRINT_ANY, "rule_hit", " (rule hit %llu)", | |
159 | (unsigned long long) pf->rhit); | |
160 | ||
161 | ||
d5cbf3ff | 162 | if (tb[TCA_MATCHALL_ACT]) |
9e713525 | 163 | tc_print_action(f, tb[TCA_MATCHALL_ACT], 0); |
d5cbf3ff YG |
164 | |
165 | return 0; | |
166 | } | |
167 | ||
168 | struct filter_util matchall_filter_util = { | |
169 | .id = "matchall", | |
170 | .parse_fopt = matchall_parse_opt, | |
171 | .print_fopt = matchall_print_opt, | |
172 | }; |