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OS-7667 IPFilter needs to keep and report state for cloud firewall logging
Portions contributed by: Mike Gerdts <mike.gerdts@joyent.com>
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--- old/usr/src/uts/common/inet/ipf/netinet/ip_state.h
+++ new/usr/src/uts/common/inet/ipf/netinet/ip_state.h
1 1 /*
2 2 * Copyright (C) 1995-2001 by Darren Reed.
3 3 *
4 4 * See the IPFILTER.LICENCE file for details on licencing.
5 5 *
6 6 * @(#)ip_state.h 1.3 1/12/96 (C) 1995 Darren Reed
7 7 * $Id: ip_state.h,v 2.68.2.5 2005/08/11 19:58:04 darrenr Exp $
8 8 *
9 9 * Copyright 2010 Sun Microsystems, Inc. All rights reserved.
10 10 * Use is subject to license terms.
11 + * Copyright 2019 Joyent, Inc.
11 12 */
12 13
13 14 #ifndef __IP_STATE_H__
14 15 #define __IP_STATE_H__
15 16
17 +#include <sys/uuid.h>
18 +
16 19 #if defined(__STDC__) || defined(__GNUC__) || defined(_AIX51)
17 20 # define SIOCDELST _IOW('r', 61, struct ipfobj)
18 21 #else
19 22 # define SIOCDELST _IOW(r, 61, struct ipfobj)
20 23 #endif
21 24
22 25 struct ipscan;
23 26
24 27 #ifndef IPSTATE_SIZE
25 28 # define IPSTATE_SIZE 5737
26 29 #endif
27 30 #ifndef IPSTATE_MAX
28 31 # define IPSTATE_MAX 50000 /* Maximum number of states held */
29 32 #endif
30 33
31 34 #define PAIRS(s1,d1,s2,d2) ((((s1) == (s2)) && ((d1) == (d2))) ||\
32 35 (((s1) == (d2)) && ((d1) == (s2))))
33 36 #define IPPAIR(s1,d1,s2,d2) PAIRS((s1).s_addr, (d1).s_addr, \
34 37 (s2).s_addr, (d2).s_addr)
35 38
36 39
37 40 typedef struct ipstate {
38 41 ipfmutex_t is_lock;
39 42 struct ipstate *is_next;
40 43 struct ipstate **is_pnext;
41 44 struct ipstate *is_hnext;
42 45 struct ipstate **is_phnext;
43 46 struct ipstate **is_me;
44 47 void *is_ifp[4];
45 48 void *is_sync;
46 49 struct nat *is_nat[2];
47 50 frentry_t *is_rule;
48 51 struct ipftq *is_tqehead[2];
49 52 struct ipscan *is_isc;
50 53 U_QUAD_T is_pkts[4];
51 54 U_QUAD_T is_bytes[4];
52 55 U_QUAD_T is_icmppkts[4];
53 56 struct ipftqent is_sti;
54 57 u_int is_frage[2];
55 58 int is_ref; /* reference count */
56 59 int is_isninc[2];
57 60 u_short is_sumd[2];
58 61 i6addr_t is_src;
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59 62 i6addr_t is_dst;
60 63 u_int is_pass;
61 64 u_char is_p; /* Protocol */
62 65 u_char is_v;
63 66 u_32_t is_hv;
64 67 u_32_t is_tag;
65 68 u_32_t is_opt[2]; /* packet options set */
66 69 /* in both directions */
67 70 u_32_t is_optmsk[2]; /* " " mask */
68 71 /* in both directions */
72 + uuid_t is_uuid;
69 73 u_short is_sec; /* security options set */
70 74 u_short is_secmsk; /* " " mask */
71 75 u_short is_auth; /* authentication options set */
72 76 u_short is_authmsk; /* " " mask */
73 77 union {
74 78 icmpinfo_t is_ics;
75 79 tcpinfo_t is_ts;
76 80 udpinfo_t is_us;
77 81 greinfo_t is_ug;
78 82 } is_ps;
79 83 u_32_t is_flags;
80 84 int is_flx[2][2];
81 85 u_32_t is_rulen; /* rule number when created */
82 86 u_32_t is_s0[2];
83 87 u_short is_smsk[2];
84 88 char is_group[FR_GROUPLEN];
85 89 char is_sbuf[2][16];
86 90 char is_ifname[4][LIFNAMSIZ];
87 91 } ipstate_t;
88 92
89 93 #define is_die is_sti.tqe_die
90 94 #define is_state is_sti.tqe_state
91 95 #define is_saddr is_src.in4.s_addr
92 96 #define is_daddr is_dst.in4.s_addr
93 97 #define is_icmp is_ps.is_ics
94 98 #define is_type is_icmp.ici_type
95 99 #define is_code is_icmp.ici_code
96 100 #define is_tcp is_ps.is_ts
97 101 #define is_udp is_ps.is_us
98 102 #define is_send is_tcp.ts_data[0].td_end
99 103 #define is_dend is_tcp.ts_data[1].td_end
100 104 #define is_maxswin is_tcp.ts_data[0].td_maxwin
101 105 #define is_maxdwin is_tcp.ts_data[1].td_maxwin
102 106 #define is_maxsend is_tcp.ts_data[0].td_maxend
103 107 #define is_maxdend is_tcp.ts_data[1].td_maxend
104 108 #define is_swinscale is_tcp.ts_data[0].td_winscale
105 109 #define is_dwinscale is_tcp.ts_data[1].td_winscale
106 110 #define is_swinflags is_tcp.ts_data[0].td_winflags
107 111 #define is_dwinflags is_tcp.ts_data[1].td_winflags
108 112 #define is_sport is_tcp.ts_sport
109 113 #define is_dport is_tcp.ts_dport
110 114 #define is_ifpin is_ifp[0]
111 115 #define is_ifpout is_ifp[2]
112 116 #define is_gre is_ps.is_ug
113 117 #define is_call is_gre.gs_call
114 118
115 119 #define IS_WSPORT SI_W_SPORT /* 0x00100 */
116 120 #define IS_WDPORT SI_W_DPORT /* 0x00200 */
117 121 #define IS_WSADDR SI_W_SADDR /* 0x00400 */
118 122 #define IS_WDADDR SI_W_DADDR /* 0x00800 */
119 123 #define IS_NEWFR SI_NEWFR /* 0x01000 */
120 124 #define IS_CLONE SI_CLONE /* 0x02000 */
121 125 #define IS_CLONED SI_CLONED /* 0x04000 */
122 126 #define IS_TCPFSM 0x10000
123 127 #define IS_STRICT 0x20000
124 128 #define IS_ISNSYN 0x40000
125 129 #define IS_ISNACK 0x80000
126 130 #define IS_STATESYNC 0x100000
127 131 /*
128 132 * IS_SC flags are for scan-operations that need to be recognised in state.
129 133 */
130 134 #define IS_SC_CLIENT 0x10000000
131 135 #define IS_SC_SERVER 0x20000000
132 136 #define IS_SC_MATCHC 0x40000000
133 137 #define IS_SC_MATCHS 0x80000000
134 138 #define IS_SC_MATCHALL (IS_SC_MATCHC|IS_SC_MATCHC)
135 139 #define IS_SC_ALL (IS_SC_MATCHC|IS_SC_MATCHC|IS_SC_CLIENT|IS_SC_SERVER)
136 140
137 141 /*
138 142 * Flags that can be passed into fr_addstate
139 143 */
140 144 #define IS_INHERITED 0x0fffff00
141 145
142 146 #define TH_OPENING (TH_SYN|TH_ACK)
143 147 /*
144 148 * is_flags:
145 149 * Bits 0 - 3 are use as a mask with the current packet's bits to check for
146 150 * whether it is short, tcp/udp, a fragment or the presence of IP options.
147 151 * Bits 4 - 7 are set from the initial packet and contain what the packet
148 152 * anded with bits 0-3 must match.
149 153 * Bits 8,9 are used to indicate wildcard source/destination port matching.
150 154 * Bits 10,11 are reserved for other wildcard flag compatibility.
151 155 * Bits 12,13 are for scaning.
152 156 */
153 157
154 158 typedef struct ipstate_save {
155 159 void *ips_next;
156 160 struct ipstate ips_is;
157 161 struct frentry ips_fr;
158 162 } ipstate_save_t;
159 163
160 164 #define ips_rule ips_is.is_rule
161 165
162 166
163 167 typedef struct ipslog {
164 168 U_QUAD_T isl_pkts[4];
165 169 U_QUAD_T isl_bytes[4];
166 170 i6addr_t isl_src;
167 171 i6addr_t isl_dst;
168 172 u_32_t isl_tag;
169 173 u_short isl_type;
170 174 union {
171 175 u_short isl_filler[2];
172 176 u_short isl_ports[2];
173 177 u_short isl_icmp;
174 178 } isl_ps;
175 179 u_char isl_v;
176 180 u_char isl_p;
177 181 u_char isl_flags;
178 182 u_char isl_state[2];
179 183 u_32_t isl_rulen;
180 184 char isl_group[FR_GROUPLEN];
181 185 } ipslog_t;
182 186
183 187 #define isl_sport isl_ps.isl_ports[0]
184 188 #define isl_dport isl_ps.isl_ports[1]
185 189 #define isl_itype isl_ps.isl_icmp
186 190
187 191 #define ISL_NEW 0
188 192 #define ISL_CLONE 1
189 193 #define ISL_EXPIRE 0xffff
190 194 #define ISL_FLUSH 0xfffe
191 195 #define ISL_REMOVE 0xfffd
192 196 #define ISL_INTERMEDIATE 0xfffc
193 197 #define ISL_KILLED 0xfffb
194 198 #define ISL_ORPHAN 0xfffa
195 199
196 200
197 201 typedef struct ips_stat {
198 202 u_long iss_hits;
199 203 u_long iss_miss;
200 204 u_long iss_max;
201 205 u_long iss_maxref;
202 206 u_long iss_tcp;
203 207 u_long iss_udp;
204 208 u_long iss_icmp;
205 209 u_long iss_nomem;
206 210 u_long iss_expire;
207 211 u_long iss_fin;
208 212 u_long iss_active;
209 213 u_long iss_logged;
210 214 u_long iss_logfail;
211 215 u_long iss_inuse;
212 216 u_long iss_wild;
213 217 u_long iss_killed;
214 218 u_long iss_ticks;
215 219 u_long iss_bucketfull;
216 220 int iss_statesize;
217 221 int iss_statemax;
218 222 ipstate_t **iss_table;
219 223 ipstate_t *iss_list;
220 224 u_long *iss_bucketlen;
221 225 u_int iss_orphans;
222 226 } ips_stat_t;
223 227
224 228 typedef struct port_pair {
225 229 uint16_t pp_sport;
226 230 uint16_t pp_dport;
227 231 } port_pair_t;
228 232
229 233 extern int fr_stateinit __P((ipf_stack_t *));
230 234 extern ipstate_t *fr_addstate __P((fr_info_t *, ipstate_t **, u_int));
231 235 extern frentry_t *fr_checkstate __P((struct fr_info *, u_32_t *));
232 236 extern ipstate_t *fr_stlookup __P((fr_info_t *, tcphdr_t *, ipftq_t **));
233 237 extern void fr_statesync __P((int, int, void *, char *, ipf_stack_t *));
234 238 extern void fr_timeoutstate __P((ipf_stack_t *));
235 239 extern int fr_tcp_age __P((struct ipftqent *, struct fr_info *,
236 240 struct ipftq *, int));
237 241 extern int fr_tcpinwindow __P((struct fr_info *, struct tcpdata *,
238 242 struct tcpdata *, tcphdr_t *, int));
239 243 extern void fr_stateunload __P((ipf_stack_t *));
240 244 extern void ipstate_log __P((struct ipstate *, u_int, ipf_stack_t *));
241 245 extern int fr_state_ioctl __P((caddr_t, ioctlcmd_t, int, int, void *, ipf_stack_t *));
242 246 extern void fr_stinsert __P((struct ipstate *, int, ipf_stack_t *));
243 247 extern void fr_sttab_init __P((struct ipftq *, ipf_stack_t *));
244 248 extern void fr_sttab_destroy __P((struct ipftq *));
245 249 extern void fr_updatestate __P((fr_info_t *, ipstate_t *, ipftq_t *));
246 250 extern void fr_statederef __P((ipstate_t **, ipf_stack_t *));
247 251 extern void fr_setstatequeue __P((ipstate_t *, int, ipf_stack_t *));
248 252 extern int fr_delstate __P((ipstate_t *, int, ipf_stack_t *));
249 253 #if SOLARIS2 >= 10
250 254 extern void fr_stateifindexsync __P((void *, void *, ipf_stack_t *));
251 255 #endif
252 256
253 257 #endif /* __IP_STATE_H__ */
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