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Commit | Line | Data |
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e2a9fa9c AC |
1 | /* |
2 | * Hostmask extban type: bans all users matching a given hostmask, used for stacked extbans | |
3 | * -- kaniini | |
4 | */ | |
5 | ||
6 | #include "stdinc.h" | |
7 | #include "modules.h" | |
8 | #include "client.h" | |
9 | #include "ircd.h" | |
10 | #include "ipv4_from_ipv6.h" | |
11 | ||
12 | static int _modinit(void); | |
13 | static void _moddeinit(void); | |
14 | static int eb_hostmask(const char *data, struct Client *client_p, struct Channel *chptr, long mode_type); | |
15 | ||
16 | DECLARE_MODULE_AV1(extb_hostmask, _modinit, _moddeinit, NULL, NULL, NULL, "$Revision: 1299 $"); | |
17 | ||
18 | static int | |
19 | _modinit(void) | |
20 | { | |
21 | extban_table['m'] = eb_hostmask; | |
22 | return 0; | |
23 | } | |
24 | ||
25 | static void | |
26 | _moddeinit(void) | |
27 | { | |
28 | extban_table['m'] = NULL; | |
29 | } | |
30 | ||
31 | static int | |
32 | eb_hostmask(const char *banstr, struct Client *client_p, struct Channel *chptr, long mode_type) | |
33 | { | |
34 | char src_host[NICKLEN + USERLEN + HOSTLEN + 6]; | |
35 | char src_iphost[NICKLEN + USERLEN + HOSTLEN + 6]; | |
36 | char src_althost[NICKLEN + USERLEN + HOSTLEN + 6]; | |
37 | char src_ip4host[NICKLEN + USERLEN + HOSTLEN + 6]; | |
38 | struct sockaddr_in ip4; | |
39 | char *s = src_host, *s2 = src_iphost, *s3 = NULL, *s4 = NULL; | |
40 | ||
41 | rb_sprintf(src_host, "%s!%s@%s", client_p->name, client_p->username, client_p->host); | |
42 | rb_sprintf(src_iphost, "%s!%s@%s", client_p->name, client_p->username, client_p->sockhost); | |
43 | ||
44 | /* handle hostmangling if necessary */ | |
45 | if (client_p->localClient->mangledhost != NULL) | |
46 | { | |
47 | if (!strcmp(client_p->host, client_p->localClient->mangledhost)) | |
48 | rb_sprintf(src_althost, "%s!%s@%s", client_p->name, client_p->username, client_p->orighost); | |
49 | else if (!IsDynSpoof(client_p)) | |
50 | rb_sprintf(src_althost, "%s!%s@%s", client_p->name, client_p->username, client_p->localClient->mangledhost); | |
51 | ||
52 | s3 = src_althost; | |
53 | } | |
54 | ||
55 | #ifdef RB_IPV6 | |
56 | /* handle Teredo if necessary */ | |
57 | if (client_p->localClient->ip.ss_family == AF_INET6 && ipv4_from_ipv6((const struct sockaddr_in6 *) &client_p->localClient->ip, &ip4)) | |
58 | { | |
59 | rb_sprintf(src_ip4host, "%s!%s@", client_p->name, client_p->username); | |
60 | s4 = src_ip4host + strlen(src_ip4host); | |
61 | rb_inet_ntop_sock((struct sockaddr *)&ip4, | |
62 | s4, src_ip4host + sizeof src_ip4host - s4); | |
63 | s4 = src_ip4host; | |
64 | } | |
65 | #endif | |
66 | ||
67 | return match(banstr, s) || match(banstr, s2) || (s3 != NULL && match(banstr, s3)) || (s4 != NULL && match(banstr, s4)) ? EXTBAN_MATCH : EXTBAN_NOMATCH; | |
68 | } | |
69 |