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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); | |
c81afd15 | 15 | static const char extb_desc[] = "Hostmask ($m) extban type"; |
e2a9fa9c | 16 | |
c81afd15 | 17 | DECLARE_MODULE_AV2(extb_hostmask, _modinit, _moddeinit, NULL, NULL, NULL, NULL, NULL, extb_desc); |
e2a9fa9c AC |
18 | |
19 | static int | |
20 | _modinit(void) | |
21 | { | |
22 | extban_table['m'] = eb_hostmask; | |
23 | return 0; | |
24 | } | |
25 | ||
26 | static void | |
27 | _moddeinit(void) | |
28 | { | |
29 | extban_table['m'] = NULL; | |
30 | } | |
31 | ||
32 | static int | |
33 | eb_hostmask(const char *banstr, struct Client *client_p, struct Channel *chptr, long mode_type) | |
34 | { | |
35 | char src_host[NICKLEN + USERLEN + HOSTLEN + 6]; | |
36 | char src_iphost[NICKLEN + USERLEN + HOSTLEN + 6]; | |
37 | char src_althost[NICKLEN + USERLEN + HOSTLEN + 6]; | |
38 | char src_ip4host[NICKLEN + USERLEN + HOSTLEN + 6]; | |
39 | struct sockaddr_in ip4; | |
40 | char *s = src_host, *s2 = src_iphost, *s3 = NULL, *s4 = NULL; | |
41 | ||
5203cba5 VI |
42 | sprintf(src_host, "%s!%s@%s", client_p->name, client_p->username, client_p->host); |
43 | sprintf(src_iphost, "%s!%s@%s", client_p->name, client_p->username, client_p->sockhost); | |
e2a9fa9c AC |
44 | |
45 | /* handle hostmangling if necessary */ | |
46 | if (client_p->localClient->mangledhost != NULL) | |
47 | { | |
48 | if (!strcmp(client_p->host, client_p->localClient->mangledhost)) | |
5203cba5 | 49 | sprintf(src_althost, "%s!%s@%s", client_p->name, client_p->username, client_p->orighost); |
e2a9fa9c | 50 | else if (!IsDynSpoof(client_p)) |
5203cba5 | 51 | sprintf(src_althost, "%s!%s@%s", client_p->name, client_p->username, client_p->localClient->mangledhost); |
e2a9fa9c AC |
52 | |
53 | s3 = src_althost; | |
54 | } | |
55 | ||
56 | #ifdef RB_IPV6 | |
57 | /* handle Teredo if necessary */ | |
58 | if (client_p->localClient->ip.ss_family == AF_INET6 && ipv4_from_ipv6((const struct sockaddr_in6 *) &client_p->localClient->ip, &ip4)) | |
59 | { | |
5203cba5 | 60 | sprintf(src_ip4host, "%s!%s@", client_p->name, client_p->username); |
e2a9fa9c AC |
61 | s4 = src_ip4host + strlen(src_ip4host); |
62 | rb_inet_ntop_sock((struct sockaddr *)&ip4, | |
63 | s4, src_ip4host + sizeof src_ip4host - s4); | |
64 | s4 = src_ip4host; | |
65 | } | |
66 | #endif | |
67 | ||
68 | return match(banstr, s) || match(banstr, s2) || (s3 != NULL && match(banstr, s3)) || (s4 != NULL && match(banstr, s4)) ? EXTBAN_MATCH : EXTBAN_NOMATCH; | |
69 | } |