Commit | Line | Data |
---|---|---|
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> | |
470938bd | 25 | #include <fcntl.h> |
8774c31b FT |
26 | #include <errno.h> |
27 | #include <string.h> | |
28 | ||
29 | #ifdef HAVE_CONFIG_H | |
30 | #include <config.h> | |
31 | #endif | |
32 | #include <utils.h> | |
33 | #include <req.h> | |
34 | #include <mt.h> | |
35 | #include <mtio.h> | |
36 | #include <log.h> | |
37 | ||
38 | #include "htparser.h" | |
39 | ||
c063c3b8 FT |
40 | struct tcpport { |
41 | int fd; | |
42 | int sport; | |
43 | }; | |
44 | ||
8774c31b FT |
45 | struct tcpconn { |
46 | struct sockaddr_storage name; | |
c063c3b8 | 47 | struct tcpport *port; |
6b84641a | 48 | int fd; |
8774c31b FT |
49 | }; |
50 | ||
6ca53b2e | 51 | int listensock4(int port) |
8774c31b FT |
52 | { |
53 | struct sockaddr_in name; | |
54 | int fd; | |
55 | int valbuf; | |
56 | ||
57 | memset(&name, 0, sizeof(name)); | |
58 | name.sin_family = AF_INET; | |
59 | name.sin_port = htons(port); | |
60 | if((fd = socket(PF_INET, SOCK_STREAM, 0)) < 0) | |
61 | return(-1); | |
62 | valbuf = 1; | |
63 | setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &valbuf, sizeof(valbuf)); | |
64 | if(bind(fd, (struct sockaddr *)&name, sizeof(name))) { | |
65 | close(fd); | |
66 | return(-1); | |
67 | } | |
4ab547c3 | 68 | if(listen(fd, 128) < 0) { |
8774c31b FT |
69 | close(fd); |
70 | return(-1); | |
71 | } | |
470938bd | 72 | fcntl(fd, F_SETFD, FD_CLOEXEC); |
8774c31b FT |
73 | return(fd); |
74 | } | |
75 | ||
6ca53b2e | 76 | int listensock6(int port) |
8774c31b FT |
77 | { |
78 | struct sockaddr_in6 name; | |
79 | int fd; | |
80 | int valbuf; | |
81 | ||
82 | memset(&name, 0, sizeof(name)); | |
83 | name.sin6_family = AF_INET6; | |
84 | name.sin6_port = htons(port); | |
85 | if((fd = socket(PF_INET6, SOCK_STREAM, 0)) < 0) | |
86 | return(-1); | |
87 | valbuf = 1; | |
88 | setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &valbuf, sizeof(valbuf)); | |
89 | if(bind(fd, (struct sockaddr *)&name, sizeof(name))) { | |
90 | close(fd); | |
91 | return(-1); | |
92 | } | |
4ab547c3 | 93 | if(listen(fd, 128) < 0) { |
8774c31b FT |
94 | close(fd); |
95 | return(-1); | |
96 | } | |
470938bd | 97 | fcntl(fd, F_SETFD, FD_CLOEXEC); |
8774c31b FT |
98 | return(fd); |
99 | } | |
100 | ||
7595e3a4 FT |
101 | char *formathaddress(struct sockaddr *name, socklen_t namelen) |
102 | { | |
103 | static char buf[128]; | |
104 | struct sockaddr_in *v4; | |
105 | struct sockaddr_in6 *v6; | |
106 | ||
107 | switch(name->sa_family) { | |
108 | case AF_INET: | |
109 | v4 = (struct sockaddr_in *)name; | |
110 | if(!inet_ntop(AF_INET, &v4->sin_addr, buf, sizeof(buf))) | |
111 | return(NULL); | |
112 | return(buf); | |
113 | case AF_INET6: | |
114 | v6 = (struct sockaddr_in6 *)name; | |
115 | if(IN6_IS_ADDR_V4MAPPED(&v6->sin6_addr)) { | |
116 | if(!inet_ntop(AF_INET, ((char *)&v6->sin6_addr) + 12, buf, sizeof(buf))) | |
117 | return(NULL); | |
118 | } else { | |
119 | if(!inet_ntop(AF_INET6, &v6->sin6_addr, buf, sizeof(buf))) | |
120 | return(NULL); | |
121 | } | |
122 | return(buf); | |
123 | default: | |
124 | errno = EPFNOSUPPORT; | |
125 | return(NULL); | |
126 | } | |
127 | } | |
128 | ||
8774c31b FT |
129 | static int initreq(struct conn *conn, struct hthead *req) |
130 | { | |
131 | struct tcpconn *tcp = conn->pdata; | |
6b84641a FT |
132 | struct sockaddr_storage sa; |
133 | socklen_t salen; | |
8774c31b | 134 | |
7595e3a4 FT |
135 | headappheader(req, "X-Ash-Address", formathaddress((struct sockaddr *)&tcp->name, sizeof(sa))); |
136 | if(tcp->name.ss_family == AF_INET) | |
8774c31b | 137 | headappheader(req, "X-Ash-Port", sprintf3("%i", ntohs(((struct sockaddr_in *)&tcp->name)->sin_port))); |
7595e3a4 | 138 | else if(tcp->name.ss_family == AF_INET6) |
8774c31b | 139 | headappheader(req, "X-Ash-Port", sprintf3("%i", ntohs(((struct sockaddr_in6 *)&tcp->name)->sin6_port))); |
6b84641a | 140 | salen = sizeof(sa); |
7595e3a4 FT |
141 | if(!getsockname(tcp->fd, (struct sockaddr *)&sa, &salen)) |
142 | headappheader(req, "X-Ash-Server-Address", formathaddress((struct sockaddr *)&sa, sizeof(sa))); | |
c063c3b8 | 143 | headappheader(req, "X-Ash-Server-Port", sprintf3("%i", tcp->port->sport)); |
46e66302 | 144 | headappheader(req, "X-Ash-Protocol", "http"); |
8774c31b FT |
145 | return(0); |
146 | } | |
147 | ||
148 | void servetcp(struct muth *muth, va_list args) | |
149 | { | |
150 | vavar(int, fd); | |
151 | vavar(struct sockaddr_storage, name); | |
c063c3b8 | 152 | vavar(struct tcpport *, stcp); |
8774c31b | 153 | FILE *in; |
c063c3b8 FT |
154 | struct conn conn; |
155 | struct tcpconn tcp; | |
8774c31b | 156 | |
c063c3b8 FT |
157 | memset(&conn, 0, sizeof(conn)); |
158 | memset(&tcp, 0, sizeof(tcp)); | |
8774c31b | 159 | in = mtstdopen(fd, 1, 60, "r+"); |
c063c3b8 FT |
160 | conn.pdata = &tcp; |
161 | conn.initreq = initreq; | |
6b84641a | 162 | tcp.fd = fd; |
c063c3b8 FT |
163 | tcp.name = name; |
164 | tcp.port = stcp; | |
165 | serve(in, &conn); | |
8774c31b FT |
166 | } |
167 | ||
168 | static void listenloop(struct muth *muth, va_list args) | |
169 | { | |
c063c3b8 | 170 | vavar(struct tcpport *, tcp); |
f24b7bb5 | 171 | int i, ns, n; |
8774c31b FT |
172 | struct sockaddr_storage name; |
173 | socklen_t namelen; | |
174 | ||
f24b7bb5 | 175 | fcntl(tcp->fd, F_SETFL, fcntl(tcp->fd, F_GETFL) | O_NONBLOCK); |
8774c31b FT |
176 | while(1) { |
177 | namelen = sizeof(name); | |
cac13158 FT |
178 | if(block(tcp->fd, EV_READ, 0) == 0) |
179 | goto out; | |
f24b7bb5 FT |
180 | n = 0; |
181 | while(1) { | |
182 | ns = accept(tcp->fd, (struct sockaddr *)&name, &namelen); | |
183 | if(ns < 0) { | |
184 | if(errno == EAGAIN) | |
185 | break; | |
51893006 FT |
186 | if(errno == ECONNABORTED) |
187 | continue; | |
f24b7bb5 FT |
188 | flog(LOG_ERR, "accept: %s", strerror(errno)); |
189 | goto out; | |
190 | } | |
191 | mustart(servetcp, ns, name, tcp); | |
192 | if(++n >= 100) | |
193 | break; | |
8774c31b | 194 | } |
8774c31b FT |
195 | } |
196 | ||
197 | out: | |
c063c3b8 FT |
198 | close(tcp->fd); |
199 | free(tcp); | |
8e9ec020 FT |
200 | for(i = 0; i < listeners.d; i++) { |
201 | if(listeners.b[i] == muth) | |
202 | bufdel(listeners, i); | |
203 | } | |
8774c31b FT |
204 | } |
205 | ||
206 | void handleplain(int argc, char **argp, char **argv) | |
207 | { | |
208 | int port, fd; | |
209 | int i; | |
c063c3b8 | 210 | struct tcpport *tcp; |
8774c31b FT |
211 | |
212 | port = 80; | |
213 | for(i = 0; i < argc; i++) { | |
214 | if(!strcmp(argp[i], "help")) { | |
215 | printf("plain handler parameters:\n"); | |
6ca53b2e FT |
216 | printf("\tport=TCP-PORT [80]\n"); |
217 | printf("\t\tThe TCP port to listen on.\n"); | |
8774c31b FT |
218 | exit(0); |
219 | } else if(!strcmp(argp[i], "port")) { | |
220 | port = atoi(argv[i]); | |
221 | } else { | |
222 | flog(LOG_ERR, "unknown parameter `%s' to plain handler", argp[i]); | |
223 | exit(1); | |
224 | } | |
225 | } | |
226 | if((fd = listensock6(port)) < 0) { | |
227 | flog(LOG_ERR, "could not listen on IPv6 (port %i): %s", port, strerror(errno)); | |
228 | exit(1); | |
229 | } | |
c063c3b8 FT |
230 | omalloc(tcp); |
231 | tcp->fd = fd; | |
232 | tcp->sport = port; | |
cac13158 | 233 | bufadd(listeners, mustart(listenloop, tcp)); |
8774c31b FT |
234 | if((fd = listensock4(port)) < 0) { |
235 | if(errno != EADDRINUSE) { | |
236 | flog(LOG_ERR, "could not listen on IPv4 (port %i): %s", port, strerror(errno)); | |
237 | exit(1); | |
238 | } | |
239 | } else { | |
41fe6c39 FT |
240 | omalloc(tcp); |
241 | tcp->fd = fd; | |
242 | tcp->sport = port; | |
cac13158 | 243 | bufadd(listeners, mustart(listenloop, tcp)); |
8774c31b FT |
244 | } |
245 | } |