]>
Commit | Line | Data |
---|---|---|
942bf97b | 1 | /* |
2 | * Zebra Policy Based Routing (PBR) Data structures and definitions | |
3 | * These are public definitions referenced by multiple files. | |
4 | * Copyright (C) 2018 Cumulus Networks, Inc. | |
5 | * | |
6 | * This file is part of FRR. | |
7 | * | |
8 | * FRR is free software; you can redistribute it and/or modify it | |
9 | * under the terms of the GNU General Public License as published by the | |
10 | * Free Software Foundation; either version 2, or (at your option) any | |
11 | * later version. | |
12 | * | |
13 | * FRR is distributed in the hope that it will be useful, but | |
14 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | * General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with FRR; see the file COPYING. If not, write to the Free | |
20 | * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA | |
21 | * 02111-1307, USA. | |
22 | */ | |
23 | ||
24 | #ifndef _ZEBRA_PBR_H | |
25 | #define _ZEBRA_PBR_H | |
26 | ||
27 | #include <zebra.h> | |
28 | ||
29 | #include "prefix.h" | |
30 | #include "if.h" | |
b6c5d343 | 31 | |
942bf97b | 32 | #include "rt.h" |
5dd0722d | 33 | #include "pbr.h" |
942bf97b | 34 | |
5dd0722d PG |
35 | struct zebra_pbr_rule { |
36 | int sock; | |
7661461a | 37 | |
5dd0722d | 38 | struct pbr_rule rule; |
1907e4b8 | 39 | |
5dd0722d | 40 | struct interface *ifp; |
942bf97b | 41 | }; |
42 | ||
43 | #define IS_RULE_FILTERING_ON_SRC_IP(r) \ | |
5dd0722d | 44 | (r->rule.filter.filter_bm & PBR_FILTER_SRC_IP) |
942bf97b | 45 | #define IS_RULE_FILTERING_ON_DST_IP(r) \ |
5dd0722d | 46 | (r->rule.filter.filter_bm & PBR_FILTER_DST_IP) |
942bf97b | 47 | #define IS_RULE_FILTERING_ON_SRC_PORT(r) \ |
5dd0722d | 48 | (r->rule.filter.filter_bm & PBR_FILTER_SRC_PORT) |
942bf97b | 49 | #define IS_RULE_FILTERING_ON_DST_PORT(r) \ |
5dd0722d | 50 | (r->rule.filter.filter_bm & PBR_FILTER_DST_PORT) |
2bee7aae PG |
51 | #define IS_RULE_FILTERING_ON_FWMARK(r) \ |
52 | (r->rule.filter.filter_bm & PBR_FILTER_FWMARK) | |
7661461a PG |
53 | |
54 | /* | |
55 | * An IPSet Entry Filter | |
56 | * | |
57 | * This is a filter mapped on ipset entries | |
58 | */ | |
59 | struct zebra_pbr_ipset { | |
60 | /* | |
61 | * Originating zclient sock fd, so we can know who to send | |
62 | * back to. | |
63 | */ | |
64 | int sock; | |
65 | ||
be2028d1 PG |
66 | vrf_id_t vrf_id; |
67 | ||
7661461a PG |
68 | uint32_t unique; |
69 | ||
70 | /* type is encoded as uint32_t | |
71 | * but value is an enum ipset_type | |
72 | */ | |
73 | uint32_t type; | |
74 | char ipset_name[ZEBRA_IPSET_NAME_SIZE]; | |
75 | }; | |
76 | ||
77 | /* | |
78 | * An IPSet Entry Filter | |
79 | * | |
80 | * This is a filter mapped on ipset entries | |
81 | */ | |
82 | struct zebra_pbr_ipset_entry { | |
83 | /* | |
84 | * Originating zclient sock fd, so we can know who to send | |
85 | * back to. | |
86 | */ | |
87 | int sock; | |
88 | ||
89 | uint32_t unique; | |
90 | ||
91 | struct prefix src; | |
92 | struct prefix dst; | |
93 | ||
3b0c3697 | 94 | /* udp/tcp src port or icmp type */ |
25d760c5 PG |
95 | uint16_t src_port_min; |
96 | uint16_t src_port_max; | |
3b0c3697 | 97 | /* udp/tcp dst port or icmp code */ |
25d760c5 PG |
98 | uint16_t dst_port_min; |
99 | uint16_t dst_port_max; | |
100 | ||
101 | uint8_t proto; | |
102 | ||
7661461a PG |
103 | uint32_t filter_bm; |
104 | ||
105 | struct zebra_pbr_ipset *backpointer; | |
106 | }; | |
107 | ||
7abd6c4f PG |
108 | /* |
109 | * An IPTables Action | |
110 | * | |
111 | * This is a filter mapped on ipset entries | |
112 | */ | |
113 | struct zebra_pbr_iptable { | |
114 | /* | |
115 | * Originating zclient sock fd, so we can know who to send | |
116 | * back to. | |
117 | */ | |
118 | int sock; | |
119 | ||
be2028d1 PG |
120 | vrf_id_t vrf_id; |
121 | ||
7abd6c4f PG |
122 | uint32_t unique; |
123 | ||
124 | /* include ipset type | |
125 | */ | |
126 | uint32_t type; | |
127 | ||
128 | /* include which IP is to be filtered | |
129 | */ | |
130 | uint32_t filter_bm; | |
131 | ||
132 | uint32_t fwmark; | |
133 | ||
134 | uint32_t action; | |
135 | ||
e7f7dad4 PG |
136 | uint16_t pkt_len_min; |
137 | uint16_t pkt_len_max; | |
dc993e76 PG |
138 | uint16_t tcp_flags; |
139 | uint16_t tcp_mask_flags; | |
4977bd6c | 140 | uint8_t dscp_value; |
5ac5b7cc | 141 | uint8_t fragment; |
e7f7dad4 | 142 | |
f80ec7e3 PG |
143 | uint32_t nb_interface; |
144 | ||
145 | struct list *interface_name_list; | |
146 | ||
7abd6c4f PG |
147 | char ipset_name[ZEBRA_IPSET_NAME_SIZE]; |
148 | }; | |
149 | ||
be729dd7 PG |
150 | extern const struct message icmp_typecode_str[]; |
151 | ||
5b0d92b8 PG |
152 | const char *zebra_pbr_ipset_type2str(uint32_t type); |
153 | ||
a0321978 DS |
154 | void zebra_pbr_add_rule(struct zebra_ns *zns, struct zebra_pbr_rule *rule); |
155 | void zebra_pbr_del_rule(struct zebra_ns *zns, struct zebra_pbr_rule *rule); | |
7661461a PG |
156 | void zebra_pbr_create_ipset(struct zebra_ns *zns, |
157 | struct zebra_pbr_ipset *ipset); | |
158 | void zebra_pbr_destroy_ipset(struct zebra_ns *zns, | |
159 | struct zebra_pbr_ipset *ipset); | |
d59c13af PG |
160 | struct zebra_pbr_ipset *zebra_pbr_lookup_ipset_pername(struct zebra_ns *zns, |
161 | char *ipsetname); | |
7661461a PG |
162 | void zebra_pbr_add_ipset_entry(struct zebra_ns *zns, |
163 | struct zebra_pbr_ipset_entry *ipset); | |
164 | void zebra_pbr_del_ipset_entry(struct zebra_ns *zns, | |
165 | struct zebra_pbr_ipset_entry *ipset); | |
942bf97b | 166 | |
7abd6c4f PG |
167 | void zebra_pbr_add_iptable(struct zebra_ns *zns, |
168 | struct zebra_pbr_iptable *iptable); | |
169 | void zebra_pbr_del_iptable(struct zebra_ns *zns, | |
170 | struct zebra_pbr_iptable *iptable); | |
171 | ||
942bf97b | 172 | /* |
173 | * Install specified rule for a specific interface. | |
174 | * It is possible that the user-defined sequence number and the one in the | |
175 | * forwarding plane may not coincide, hence the API requires a separate | |
176 | * rule priority - maps to preference/FRA_PRIORITY on Linux. | |
177 | */ | |
ebecd649 | 178 | extern enum dp_req_result kernel_add_pbr_rule(struct zebra_pbr_rule *rule); |
942bf97b | 179 | |
180 | /* | |
181 | * Uninstall specified rule for a specific interface. | |
182 | */ | |
ebecd649 | 183 | extern enum dp_req_result kernel_del_pbr_rule(struct zebra_pbr_rule *rule); |
942bf97b | 184 | |
185 | /* | |
186 | * Get to know existing PBR rules in the kernel - typically called at startup. | |
187 | */ | |
188 | extern void kernel_read_pbr_rules(struct zebra_ns *zns); | |
189 | ||
215181cb | 190 | enum dp_results; |
942bf97b | 191 | /* |
192 | * Handle success or failure of rule (un)install in the kernel. | |
193 | */ | |
194 | extern void kernel_pbr_rule_add_del_status(struct zebra_pbr_rule *rule, | |
215181cb | 195 | enum dp_results res); |
942bf97b | 196 | |
425bdd6b PG |
197 | /* |
198 | * Handle success or failure of ipset kinds (un)install in the kernel. | |
199 | */ | |
200 | extern void kernel_pbr_ipset_add_del_status(struct zebra_pbr_ipset *ipset, | |
215181cb | 201 | enum dp_results res); |
425bdd6b PG |
202 | |
203 | extern void kernel_pbr_ipset_entry_add_del_status( | |
204 | struct zebra_pbr_ipset_entry *ipset, | |
215181cb | 205 | enum dp_results res); |
425bdd6b | 206 | |
7abd6c4f | 207 | extern void kernel_pbr_iptable_add_del_status(struct zebra_pbr_iptable *iptable, |
215181cb | 208 | enum dp_results res); |
7abd6c4f | 209 | |
942bf97b | 210 | /* |
211 | * Handle rule delete notification from kernel. | |
212 | */ | |
a0321978 | 213 | extern int kernel_pbr_rule_del(struct zebra_pbr_rule *rule); |
942bf97b | 214 | |
43fe6a2a DS |
215 | extern void zebra_pbr_rules_free(void *arg); |
216 | extern uint32_t zebra_pbr_rules_hash_key(void *arg); | |
217 | extern int zebra_pbr_rules_hash_equal(const void *arg1, const void *arg2); | |
e69aa084 | 218 | |
425bdd6b PG |
219 | /* has operates on 32bit pointer |
220 | * and field is a string of 8bit | |
221 | */ | |
222 | #define ZEBRA_IPSET_NAME_HASH_SIZE (ZEBRA_IPSET_NAME_SIZE / 4) | |
223 | ||
7661461a PG |
224 | extern void zebra_pbr_ipset_free(void *arg); |
225 | extern uint32_t zebra_pbr_ipset_hash_key(void *arg); | |
226 | extern int zebra_pbr_ipset_hash_equal(const void *arg1, const void *arg2); | |
227 | ||
228 | extern void zebra_pbr_ipset_entry_free(void *arg); | |
229 | extern uint32_t zebra_pbr_ipset_entry_hash_key(void *arg); | |
230 | extern int zebra_pbr_ipset_entry_hash_equal(const void *arg1, const void *arg2); | |
231 | ||
7abd6c4f PG |
232 | extern void zebra_pbr_iptable_free(void *arg); |
233 | extern uint32_t zebra_pbr_iptable_hash_key(void *arg); | |
234 | extern int zebra_pbr_iptable_hash_equal(const void *arg1, const void *arg2); | |
235 | ||
4c0ec639 | 236 | extern void zebra_pbr_init(void); |
586f4ccf PG |
237 | extern void zebra_pbr_show_ipset_list(struct vty *vty, char *ipsetname); |
238 | extern void zebra_pbr_show_iptable(struct vty *vty); | |
f80ec7e3 PG |
239 | extern void zebra_pbr_iptable_update_interfacelist(struct stream *s, |
240 | struct zebra_pbr_iptable *zpi); | |
dc993e76 PG |
241 | size_t zebra_pbr_tcpflags_snprintf(char *buffer, size_t len, |
242 | uint16_t tcp_val); | |
586f4ccf | 243 | |
73a829f7 PG |
244 | DECLARE_HOOK(zebra_pbr_ipset_entry_wrap_script_get_stat, (struct zebra_ns *zns, |
245 | struct zebra_pbr_ipset_entry *ipset, | |
246 | uint64_t *pkts, uint64_t *bytes), | |
247 | (zns, ipset, pkts, bytes)) | |
248 | DECLARE_HOOK(zebra_pbr_iptable_wrap_script_get_stat, (struct zebra_ns *zns, | |
249 | struct zebra_pbr_iptable *iptable, | |
250 | uint64_t *pkts, uint64_t *bytes), | |
251 | (zns, iptable, pkts, bytes)) | |
252 | DECLARE_HOOK(zebra_pbr_iptable_wrap_script_update, (struct zebra_ns *zns, | |
253 | int cmd, | |
254 | struct zebra_pbr_iptable *iptable), | |
255 | (zns, cmd, iptable)); | |
256 | ||
257 | DECLARE_HOOK(zebra_pbr_ipset_entry_wrap_script_update, (struct zebra_ns *zns, | |
258 | int cmd, | |
259 | struct zebra_pbr_ipset_entry *ipset), | |
260 | (zns, cmd, ipset)); | |
261 | DECLARE_HOOK(zebra_pbr_ipset_wrap_script_update, (struct zebra_ns *zns, | |
262 | int cmd, | |
263 | struct zebra_pbr_ipset *ipset), | |
264 | (zns, cmd, ipset)); | |
265 | ||
942bf97b | 266 | #endif /* _ZEBRA_PBR_H */ |