Commit | Line | Data |
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8774c31b FT |
1 | /* |
2 | ashd - A Sane HTTP Daemon | |
3 | Copyright (C) 2008 Fredrik Tolf <fredrik@dolda2000.com> | |
4 | ||
5 | This program is free software: you can redistribute it and/or modify | |
6 | it under the terms of the GNU General Public License as published by | |
7 | the Free Software Foundation, either version 3 of the License, or | |
8 | (at your option) any later version. | |
9 | ||
10 | This program is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | GNU General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU General Public License | |
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | |
17 | */ | |
18 | ||
19 | #include <stdlib.h> | |
20 | #include <unistd.h> | |
21 | #include <stdio.h> | |
22 | #include <sys/socket.h> | |
23 | #include <netinet/in.h> | |
24 | #include <arpa/inet.h> | |
25 | #include <errno.h> | |
26 | #include <string.h> | |
27 | ||
28 | #ifdef HAVE_CONFIG_H | |
29 | #include <config.h> | |
30 | #endif | |
31 | #include <utils.h> | |
32 | #include <req.h> | |
33 | #include <mt.h> | |
34 | #include <mtio.h> | |
35 | #include <log.h> | |
36 | ||
37 | #include "htparser.h" | |
38 | ||
c063c3b8 FT |
39 | struct tcpport { |
40 | int fd; | |
41 | int sport; | |
42 | }; | |
43 | ||
8774c31b FT |
44 | struct tcpconn { |
45 | struct sockaddr_storage name; | |
c063c3b8 | 46 | struct tcpport *port; |
6b84641a | 47 | int fd; |
8774c31b FT |
48 | }; |
49 | ||
6ca53b2e | 50 | int listensock4(int port) |
8774c31b FT |
51 | { |
52 | struct sockaddr_in name; | |
53 | int fd; | |
54 | int valbuf; | |
55 | ||
56 | memset(&name, 0, sizeof(name)); | |
57 | name.sin_family = AF_INET; | |
58 | name.sin_port = htons(port); | |
59 | if((fd = socket(PF_INET, SOCK_STREAM, 0)) < 0) | |
60 | return(-1); | |
61 | valbuf = 1; | |
62 | setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &valbuf, sizeof(valbuf)); | |
63 | if(bind(fd, (struct sockaddr *)&name, sizeof(name))) { | |
64 | close(fd); | |
65 | return(-1); | |
66 | } | |
67 | if(listen(fd, 16) < 0) { | |
68 | close(fd); | |
69 | return(-1); | |
70 | } | |
71 | return(fd); | |
72 | } | |
73 | ||
6ca53b2e | 74 | int listensock6(int port) |
8774c31b FT |
75 | { |
76 | struct sockaddr_in6 name; | |
77 | int fd; | |
78 | int valbuf; | |
79 | ||
80 | memset(&name, 0, sizeof(name)); | |
81 | name.sin6_family = AF_INET6; | |
82 | name.sin6_port = htons(port); | |
83 | if((fd = socket(PF_INET6, SOCK_STREAM, 0)) < 0) | |
84 | return(-1); | |
85 | valbuf = 1; | |
86 | setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &valbuf, sizeof(valbuf)); | |
87 | if(bind(fd, (struct sockaddr *)&name, sizeof(name))) { | |
88 | close(fd); | |
89 | return(-1); | |
90 | } | |
91 | if(listen(fd, 16) < 0) { | |
92 | close(fd); | |
93 | return(-1); | |
94 | } | |
95 | return(fd); | |
96 | } | |
97 | ||
7595e3a4 FT |
98 | char *formathaddress(struct sockaddr *name, socklen_t namelen) |
99 | { | |
100 | static char buf[128]; | |
101 | struct sockaddr_in *v4; | |
102 | struct sockaddr_in6 *v6; | |
103 | ||
104 | switch(name->sa_family) { | |
105 | case AF_INET: | |
106 | v4 = (struct sockaddr_in *)name; | |
107 | if(!inet_ntop(AF_INET, &v4->sin_addr, buf, sizeof(buf))) | |
108 | return(NULL); | |
109 | return(buf); | |
110 | case AF_INET6: | |
111 | v6 = (struct sockaddr_in6 *)name; | |
112 | if(IN6_IS_ADDR_V4MAPPED(&v6->sin6_addr)) { | |
113 | if(!inet_ntop(AF_INET, ((char *)&v6->sin6_addr) + 12, buf, sizeof(buf))) | |
114 | return(NULL); | |
115 | } else { | |
116 | if(!inet_ntop(AF_INET6, &v6->sin6_addr, buf, sizeof(buf))) | |
117 | return(NULL); | |
118 | } | |
119 | return(buf); | |
120 | default: | |
121 | errno = EPFNOSUPPORT; | |
122 | return(NULL); | |
123 | } | |
124 | } | |
125 | ||
8774c31b FT |
126 | static int initreq(struct conn *conn, struct hthead *req) |
127 | { | |
128 | struct tcpconn *tcp = conn->pdata; | |
6b84641a FT |
129 | struct sockaddr_storage sa; |
130 | socklen_t salen; | |
8774c31b | 131 | |
7595e3a4 FT |
132 | headappheader(req, "X-Ash-Address", formathaddress((struct sockaddr *)&tcp->name, sizeof(sa))); |
133 | if(tcp->name.ss_family == AF_INET) | |
8774c31b | 134 | headappheader(req, "X-Ash-Port", sprintf3("%i", ntohs(((struct sockaddr_in *)&tcp->name)->sin_port))); |
7595e3a4 | 135 | else if(tcp->name.ss_family == AF_INET6) |
8774c31b | 136 | headappheader(req, "X-Ash-Port", sprintf3("%i", ntohs(((struct sockaddr_in6 *)&tcp->name)->sin6_port))); |
6b84641a | 137 | salen = sizeof(sa); |
7595e3a4 FT |
138 | if(!getsockname(tcp->fd, (struct sockaddr *)&sa, &salen)) |
139 | headappheader(req, "X-Ash-Server-Address", formathaddress((struct sockaddr *)&sa, sizeof(sa))); | |
c063c3b8 | 140 | headappheader(req, "X-Ash-Server-Port", sprintf3("%i", tcp->port->sport)); |
46e66302 | 141 | headappheader(req, "X-Ash-Protocol", "http"); |
8774c31b FT |
142 | return(0); |
143 | } | |
144 | ||
145 | void servetcp(struct muth *muth, va_list args) | |
146 | { | |
147 | vavar(int, fd); | |
148 | vavar(struct sockaddr_storage, name); | |
c063c3b8 | 149 | vavar(struct tcpport *, stcp); |
8774c31b | 150 | FILE *in; |
c063c3b8 FT |
151 | struct conn conn; |
152 | struct tcpconn tcp; | |
8774c31b | 153 | |
c063c3b8 FT |
154 | memset(&conn, 0, sizeof(conn)); |
155 | memset(&tcp, 0, sizeof(tcp)); | |
8774c31b | 156 | in = mtstdopen(fd, 1, 60, "r+"); |
c063c3b8 FT |
157 | conn.pdata = &tcp; |
158 | conn.initreq = initreq; | |
6b84641a | 159 | tcp.fd = fd; |
c063c3b8 FT |
160 | tcp.name = name; |
161 | tcp.port = stcp; | |
162 | serve(in, &conn); | |
8774c31b FT |
163 | } |
164 | ||
165 | static void listenloop(struct muth *muth, va_list args) | |
166 | { | |
c063c3b8 | 167 | vavar(struct tcpport *, tcp); |
8774c31b FT |
168 | int ns; |
169 | struct sockaddr_storage name; | |
170 | socklen_t namelen; | |
171 | ||
172 | while(1) { | |
173 | namelen = sizeof(name); | |
c063c3b8 FT |
174 | block(tcp->fd, EV_READ, 0); |
175 | ns = accept(tcp->fd, (struct sockaddr *)&name, &namelen); | |
8774c31b FT |
176 | if(ns < 0) { |
177 | flog(LOG_ERR, "accept: %s", strerror(errno)); | |
178 | goto out; | |
179 | } | |
c063c3b8 | 180 | mustart(servetcp, ns, name, tcp); |
8774c31b FT |
181 | } |
182 | ||
183 | out: | |
c063c3b8 FT |
184 | close(tcp->fd); |
185 | free(tcp); | |
8774c31b FT |
186 | } |
187 | ||
188 | void handleplain(int argc, char **argp, char **argv) | |
189 | { | |
190 | int port, fd; | |
191 | int i; | |
c063c3b8 | 192 | struct tcpport *tcp; |
8774c31b FT |
193 | |
194 | port = 80; | |
195 | for(i = 0; i < argc; i++) { | |
196 | if(!strcmp(argp[i], "help")) { | |
197 | printf("plain handler parameters:\n"); | |
6ca53b2e FT |
198 | printf("\tport=TCP-PORT [80]\n"); |
199 | printf("\t\tThe TCP port to listen on.\n"); | |
8774c31b FT |
200 | exit(0); |
201 | } else if(!strcmp(argp[i], "port")) { | |
202 | port = atoi(argv[i]); | |
203 | } else { | |
204 | flog(LOG_ERR, "unknown parameter `%s' to plain handler", argp[i]); | |
205 | exit(1); | |
206 | } | |
207 | } | |
208 | if((fd = listensock6(port)) < 0) { | |
209 | flog(LOG_ERR, "could not listen on IPv6 (port %i): %s", port, strerror(errno)); | |
210 | exit(1); | |
211 | } | |
c063c3b8 FT |
212 | omalloc(tcp); |
213 | tcp->fd = fd; | |
214 | tcp->sport = port; | |
215 | mustart(listenloop, tcp); | |
8774c31b FT |
216 | if((fd = listensock4(port)) < 0) { |
217 | if(errno != EADDRINUSE) { | |
218 | flog(LOG_ERR, "could not listen on IPv4 (port %i): %s", port, strerror(errno)); | |
219 | exit(1); | |
220 | } | |
221 | } else { | |
41fe6c39 FT |
222 | omalloc(tcp); |
223 | tcp->fd = fd; | |
224 | tcp->sport = port; | |
225 | mustart(listenloop, tcp); | |
8774c31b FT |
226 | } |
227 | } |