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allow to speak "TLS-less Gemini" useful for e.g. to save some CPU cycles when the Gemini server is sitting on the same box as Galileo; disabled by default.
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  1 b0a6bcf7 2022-09-13 op /*

  2 b0a6bcf7 2022-09-13 op  * Copyright (c) 2022 Omar Polo <op@omarpolo.com>

  3 b0a6bcf7 2022-09-13 op  * Copyright (c) 2006 - 2015 Reyk Floeter <reyk@openbsd.org>

  4 b0a6bcf7 2022-09-13 op  * Copyright (c) 2006, 2007 Pierre-Yves Ritschard <pyr@openbsd.org>

  5 b0a6bcf7 2022-09-13 op  * Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org>

  6 b0a6bcf7 2022-09-13 op  *

  7 b0a6bcf7 2022-09-13 op  * Permission to use, copy, modify, and distribute this software for any

  8 b0a6bcf7 2022-09-13 op  * purpose with or without fee is hereby granted, provided that the above

  9 b0a6bcf7 2022-09-13 op  * copyright notice and this permission notice appear in all copies.

 10 b0a6bcf7 2022-09-13 op  *

 11 b0a6bcf7 2022-09-13 op  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES

 12 b0a6bcf7 2022-09-13 op  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF

 13 b0a6bcf7 2022-09-13 op  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR

 14 b0a6bcf7 2022-09-13 op  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES

 15 b0a6bcf7 2022-09-13 op  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN

 16 b0a6bcf7 2022-09-13 op  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF

 17 b0a6bcf7 2022-09-13 op  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

 18 b0a6bcf7 2022-09-13 op  */

 19 b0a6bcf7 2022-09-13 op 

 20 b0a6bcf7 2022-09-13 op #ifndef nitems

 21 b0a6bcf7 2022-09-13 op #define nitems(_a) (sizeof((_a)) / sizeof((_a)[0]))

 22 b0a6bcf7 2022-09-13 op #endif

 23 b0a6bcf7 2022-09-13 op 

 24 b0a6bcf7 2022-09-13 op #define GALILEO_USER		"www"

 25 b0a6bcf7 2022-09-13 op #define GALILEO_SOCK		"/var/www/run/galileo.sock"

 26 b0a6bcf7 2022-09-13 op #define CONF_FILE		"/etc/galileo.conf"

 27 b0a6bcf7 2022-09-13 op #define FD_RESERVE		5

 28 b0a6bcf7 2022-09-13 op #define PROC_MAX_INSTANCES	32

 29 b0a6bcf7 2022-09-13 op #define PROXY_NUMPROC		3

 30 b0a6bcf7 2022-09-13 op #define PROC_PARENT_SOCK_FILENO	3

 31 28239bac 2022-09-20 op #define GEMINI_MAXLEN		(1024 + 1) /* NULL */

 32 8857131d 2022-09-20 op #define FORM_URLENCODED		"application/x-www-form-urlencoded"

 33 b0a6bcf7 2022-09-13 op 

 34 b0a6bcf7 2022-09-13 op enum {

 35 8857131d 2022-09-20 op 	METHOD_UNKNOWN,

 36 8857131d 2022-09-20 op 	METHOD_GET,

 37 8857131d 2022-09-20 op 	METHOD_POST,

 38 8857131d 2022-09-20 op };

 39 8857131d 2022-09-20 op 

 40 8857131d 2022-09-20 op enum {

 41 b0a6bcf7 2022-09-13 op 	IMSG_NONE,

 42 b0a6bcf7 2022-09-13 op 	IMSG_CFG_START,

 43 b0a6bcf7 2022-09-13 op 	IMSG_CFG_SRV,

 44 b0a6bcf7 2022-09-13 op 	IMSG_CFG_SOCK,

 45 b0a6bcf7 2022-09-13 op 	IMSG_CFG_DONE,

 46 b0a6bcf7 2022-09-13 op 	IMSG_CTL_START,

 47 b0a6bcf7 2022-09-13 op 	IMSG_CTL_RESET,

 48 b0a6bcf7 2022-09-13 op 	IMSG_CTL_RESTART,

 49 b0a6bcf7 2022-09-13 op 	IMSG_CTL_PROCFD,

 50 b0a6bcf7 2022-09-13 op };

 51 b0a6bcf7 2022-09-13 op 

 52 b0a6bcf7 2022-09-13 op struct galileo;

 53 b0a6bcf7 2022-09-13 op struct proxy_config;

 54 b0a6bcf7 2022-09-13 op 

 55 b0a6bcf7 2022-09-13 op struct imsg;

 56 b0a6bcf7 2022-09-13 op struct privsep;

 57 b0a6bcf7 2022-09-13 op struct privsep_proc;

 58 bff58270 2022-09-19 op struct template;

 59 b0a6bcf7 2022-09-13 op struct tls;

 60 b0a6bcf7 2022-09-13 op 

 61 b0a6bcf7 2022-09-13 op struct client {

 62 b0a6bcf7 2022-09-13 op 	uint32_t		 clt_id;

 63 b0a6bcf7 2022-09-13 op 	int			 clt_fd;

 64 b0a6bcf7 2022-09-13 op 	struct fcgi		*clt_fcgi;

 65 b0a6bcf7 2022-09-13 op 	char			*clt_server_name;

 66 b0a6bcf7 2022-09-13 op 	char			*clt_script_name;

 67 b0a6bcf7 2022-09-13 op 	char			*clt_path_info;

 68 28239bac 2022-09-20 op 	char			*clt_query;

 69 8857131d 2022-09-20 op 	int			 clt_method;

 70 8857131d 2022-09-20 op 	int			 clt_bodydone;

 71 8857131d 2022-09-20 op 	char			*clt_body;

 72 8857131d 2022-09-20 op 	int			 clt_bodylen;

 73 b0a6bcf7 2022-09-13 op 	struct proxy_config	*clt_pc;

 74 b0a6bcf7 2022-09-13 op 	struct event_asr	*clt_evasr;

 75 b0a6bcf7 2022-09-13 op 	struct addrinfo		*clt_addrinfo;

 76 b0a6bcf7 2022-09-13 op 	struct addrinfo		*clt_p;

 77 b0a6bcf7 2022-09-13 op 	struct event		 clt_evconn;

 78 b0a6bcf7 2022-09-13 op 	int			 clt_evconn_live;

 79 b0a6bcf7 2022-09-13 op 	struct tls		*clt_ctx;

 80 b0a6bcf7 2022-09-13 op 	struct bufferevent	*clt_bev;

 81 b0a6bcf7 2022-09-13 op 	int			 clt_headersdone;

 82 bff58270 2022-09-19 op 	struct template		*clt_tp;

 83 b9de0a74 2022-09-14 op 

 84 b9de0a74 2022-09-14 op #define TR_ENABLED	0x1

 85 b9de0a74 2022-09-14 op #define TR_PRE		0x2

 86 b9de0a74 2022-09-14 op #define TR_LIST		0x4

 87 b9de0a74 2022-09-14 op #define TR_NAV		0x8

 88 c9dc4bc6 2022-09-13 op 	int			 clt_translate;

 89 b0a6bcf7 2022-09-13 op 

 90 b0a6bcf7 2022-09-13 op 	char			 clt_buf[1024];

 91 b0a6bcf7 2022-09-13 op 	size_t			 clt_buflen;

 92 b0a6bcf7 2022-09-13 op 

 93 b0a6bcf7 2022-09-13 op 	SPLAY_ENTRY(client)	 clt_nodes;

 94 b0a6bcf7 2022-09-13 op };

 95 b0a6bcf7 2022-09-13 op SPLAY_HEAD(client_tree, client);

 96 b0a6bcf7 2022-09-13 op 

 97 b0a6bcf7 2022-09-13 op struct fcgi {

 98 b0a6bcf7 2022-09-13 op 	uint32_t		 fcg_id;

 99 b0a6bcf7 2022-09-13 op 	int			 fcg_s;

100 b0a6bcf7 2022-09-13 op 	struct client_tree	 fcg_clients;

101 b0a6bcf7 2022-09-13 op 	struct bufferevent	*fcg_bev;

102 b0a6bcf7 2022-09-13 op 	int			 fcg_toread;

103 b0a6bcf7 2022-09-13 op 	int			 fcg_want;

104 b0a6bcf7 2022-09-13 op 	int			 fcg_padding;

105 b0a6bcf7 2022-09-13 op 	int			 fcg_type;

106 b0a6bcf7 2022-09-13 op 	uint16_t		 fcg_rec_id;

107 b0a6bcf7 2022-09-13 op 	int			 fcg_keep_conn;

108 247917be 2022-09-14 op 	int			 fcg_done;

109 b0a6bcf7 2022-09-13 op 

110 b0a6bcf7 2022-09-13 op 	struct galileo		*fcg_env;

111 b0a6bcf7 2022-09-13 op 

112 b0a6bcf7 2022-09-13 op 	SPLAY_ENTRY(fcgi)	 fcg_nodes;

113 b0a6bcf7 2022-09-13 op };

114 b0a6bcf7 2022-09-13 op SPLAY_HEAD(fcgi_tree, fcgi);

115 b0a6bcf7 2022-09-13 op 

116 b0a6bcf7 2022-09-13 op struct proxy_config {

117 b0a6bcf7 2022-09-13 op 	char		 host[HOST_NAME_MAX + 1];

118 b0a6bcf7 2022-09-13 op 	char		 stylesheet[PATH_MAX];

119 b0a6bcf7 2022-09-13 op 	char		 proxy_addr[HOST_NAME_MAX + 1];

120 b0a6bcf7 2022-09-13 op 	char		 proxy_name[HOST_NAME_MAX + 1];

121 26cd3e9d 2022-09-23 op 	char		 proxy_port[6];

122 c743c9a1 2022-09-23 op 	int		 no_tls;

123 b0a6bcf7 2022-09-13 op };

124 b0a6bcf7 2022-09-13 op 

125 afb86b2c 2022-09-23 op struct proxy {

126 afb86b2c 2022-09-23 op 	TAILQ_ENTRY(proxy)	 pr_entry;

127 afb86b2c 2022-09-23 op 	struct proxy_config	 pr_conf;

128 b0a6bcf7 2022-09-13 op };

129 afb86b2c 2022-09-23 op TAILQ_HEAD(proxylist, proxy);

130 b0a6bcf7 2022-09-13 op 

131 b0a6bcf7 2022-09-13 op struct galileo {

132 b0a6bcf7 2022-09-13 op 	char			 sc_conffile[PATH_MAX];

133 b0a6bcf7 2022-09-13 op 	uint16_t		 sc_prefork;

134 b0a6bcf7 2022-09-13 op 	char			 sc_chroot[PATH_MAX];

135 afb86b2c 2022-09-23 op 	struct proxylist	 sc_proxies;

136 b0a6bcf7 2022-09-13 op 	struct fcgi_tree	 sc_fcgi_socks;

137 b0a6bcf7 2022-09-13 op 

138 b0a6bcf7 2022-09-13 op 	struct privsep		*sc_ps;

139 b0a6bcf7 2022-09-13 op 	int			 sc_reload;

140 b0a6bcf7 2022-09-13 op 

141 b0a6bcf7 2022-09-13 op 	/* XXX: generalize */

142 b0a6bcf7 2022-09-13 op 	int		sc_sock_fd;

143 b0a6bcf7 2022-09-13 op 	struct event	sc_evsock;

144 b0a6bcf7 2022-09-13 op 	struct event	sc_evpause;

145 b0a6bcf7 2022-09-13 op };

146 b0a6bcf7 2022-09-13 op 

147 b0a6bcf7 2022-09-13 op extern int privsep_process;

148 b0a6bcf7 2022-09-13 op 

149 b0a6bcf7 2022-09-13 op /* config.c */

150 b0a6bcf7 2022-09-13 op int	 config_init(struct galileo *);

151 b0a6bcf7 2022-09-13 op void	 config_purge(struct galileo *);

152 afb86b2c 2022-09-23 op int	 config_setproxy(struct galileo *, struct proxy *);

153 afb86b2c 2022-09-23 op int	 config_getproxy(struct galileo *, struct imsg *);

154 b0a6bcf7 2022-09-13 op int	 config_setsock(struct galileo *);

155 b0a6bcf7 2022-09-13 op int	 config_getsock(struct galileo *, struct imsg *);

156 b0a6bcf7 2022-09-13 op int	 config_setreset(struct galileo *);

157 b0a6bcf7 2022-09-13 op int	 config_getreset(struct galileo *, struct imsg *);

158 40f762b2 2022-09-23 op int	 config_getcfg(struct galileo *, struct imsg *);

159 b0a6bcf7 2022-09-13 op 

160 b0a6bcf7 2022-09-13 op /* fcgi.c */

161 b0a6bcf7 2022-09-13 op int	 fcgi_end_request(struct client *, int);

162 b0a6bcf7 2022-09-13 op int	 fcgi_abort_request(struct client *);

163 ea8874f1 2022-09-13 op void	 fcgi_accept(int, short, void *);

164 b0a6bcf7 2022-09-13 op void	 fcgi_read(struct bufferevent *, void *);

165 b0a6bcf7 2022-09-13 op void	 fcgi_write(struct bufferevent *, void *);

166 b0a6bcf7 2022-09-13 op void	 fcgi_error(struct bufferevent *, short error, void *);

167 40f762b2 2022-09-23 op void	 fcgi_free(struct fcgi *);

168 c9dc4bc6 2022-09-13 op int	 clt_putc(struct client *, char);

169 c9dc4bc6 2022-09-13 op int	 clt_puts(struct client *, const char *);

170 b0a6bcf7 2022-09-13 op int	 clt_write_bufferevent(struct client *, struct bufferevent *);

171 b0a6bcf7 2022-09-13 op int	 clt_flush(struct client *);

172 b0a6bcf7 2022-09-13 op int	 clt_write(struct client *, const uint8_t *, size_t);

173 b0a6bcf7 2022-09-13 op int	 clt_printf(struct client *, const char *, ...)

174 b0a6bcf7 2022-09-13 op 	     __attribute__((__format__(printf, 2, 3)))

175 b0a6bcf7 2022-09-13 op 	     __attribute__((__nonnull__(2)));

176 232eee45 2022-09-20 op int	 clt_tp_puts(struct template *, const char *);

177 232eee45 2022-09-20 op int	 clt_tp_putc(struct template *, int);

178 b0a6bcf7 2022-09-13 op int	 fcgi_cmp(struct fcgi *, struct fcgi *);

179 b0a6bcf7 2022-09-13 op int	 fcgi_client_cmp(struct client *, struct client *);

180 b0a6bcf7 2022-09-13 op 

181 bff58270 2022-09-19 op /* fragments.tmpl */

182 bff58270 2022-09-19 op int	 tp_head(struct template *, const char *, const char *);

183 bff58270 2022-09-19 op int	 tp_foot(struct template *);

184 bff58270 2022-09-19 op int	 tp_figure(struct template *, const char *, const char *);

185 abe17781 2022-09-20 op int	 tp_error(struct template *, int, const char *);

186 8857131d 2022-09-20 op int	 tp_inputpage(struct template *, const char *);

187 bff58270 2022-09-19 op 

188 b0a6bcf7 2022-09-13 op /* galileo.c */

189 b0a6bcf7 2022-09-13 op int	 accept_reserve(int, struct sockaddr *, socklen_t *, int,

190 b0a6bcf7 2022-09-13 op 	     volatile int *);

191 b0a6bcf7 2022-09-13 op /* parse.y */

192 b0a6bcf7 2022-09-13 op int	 parse_config(const char *, struct galileo *);

193 b0a6bcf7 2022-09-13 op int	 cmdline_symset(char *);

194 b0a6bcf7 2022-09-13 op 

195 b0a6bcf7 2022-09-13 op /* proxy.c */

196 b0a6bcf7 2022-09-13 op extern volatile int proxy_inflight;

197 b0a6bcf7 2022-09-13 op extern uint32_t proxy_fcg_id;

198 b0a6bcf7 2022-09-13 op 

199 f774ad1e 2022-09-23 op void			 proxy(struct privsep *, struct privsep_proc *);

200 f774ad1e 2022-09-23 op void			 proxy_purge(struct proxy *);

201 f774ad1e 2022-09-23 op struct proxy_config	*proxy_match(struct galileo *, const char *);

202 f774ad1e 2022-09-23 op int			 proxy_start_request(struct galileo *, struct client *);

203 f774ad1e 2022-09-23 op void			 proxy_client_free(struct client *);

204 b0a6bcf7 2022-09-13 op 

205 b0a6bcf7 2022-09-13 op SPLAY_PROTOTYPE(fcgi_tree, fcgi, fcg_nodes, fcgi_cmp);

206 b0a6bcf7 2022-09-13 op SPLAY_PROTOTYPE(client_tree, client, clt_nodes, fcgi_client_cmp);