1 13b2bc37 2022-10-23 stsp /*
  2 13b2bc37 2022-10-23 stsp  * Copyright (c) 2022 Stefan Sperling <stsp@openbsd.org>
  3 13b2bc37 2022-10-23 stsp  *
  4 13b2bc37 2022-10-23 stsp  * Permission to use, copy, modify, and distribute this software for any
  5 13b2bc37 2022-10-23 stsp  * purpose with or without fee is hereby granted, provided that the above
  6 13b2bc37 2022-10-23 stsp  * copyright notice and this permission notice appear in all copies.
  7 13b2bc37 2022-10-23 stsp  *
  8 13b2bc37 2022-10-23 stsp  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  9 13b2bc37 2022-10-23 stsp  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 10 13b2bc37 2022-10-23 stsp  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 11 13b2bc37 2022-10-23 stsp  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 12 13b2bc37 2022-10-23 stsp  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 13 13b2bc37 2022-10-23 stsp  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 14 13b2bc37 2022-10-23 stsp  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 15 13b2bc37 2022-10-23 stsp  */
 16 13b2bc37 2022-10-23 stsp 
 17 13b2bc37 2022-10-23 stsp 
 18 13b2bc37 2022-10-23 stsp #define GOTD_UNIX_SOCKET "/var/run/gotd.sock"
 19 13b2bc37 2022-10-23 stsp #define GOTD_UNIX_SOCKET_BACKLOG 10
 20 13b2bc37 2022-10-23 stsp #define GOTD_USER	"_gotd"
 21 13b2bc37 2022-10-23 stsp #define GOTD_CONF_PATH	"/etc/gotd.conf"
 22 d93ecf7d 2022-12-14 stsp #define GOTD_EMPTY_PATH	"/var/empty"
 23 13b2bc37 2022-10-23 stsp 
 24 ba97b2d7 2024-03-20 stsp #ifndef GOT_LIBEXECDIR
 25 ba97b2d7 2024-03-20 stsp #define GOT_LIBEXECDIR /usr/libexec
 26 ba97b2d7 2024-03-20 stsp #endif
 27 ba97b2d7 2024-03-20 stsp 
 28 ba97b2d7 2024-03-20 stsp #define GOTD_STRINGIFY(x) #x
 29 ba97b2d7 2024-03-20 stsp #define GOTD_STRINGVAL(x) GOTD_STRINGIFY(x)
 30 ba97b2d7 2024-03-20 stsp 
 31 ba97b2d7 2024-03-20 stsp #define GOTD_PROG_NOTIFY_EMAIL	got-notify-email
 32 ba97b2d7 2024-03-20 stsp #define GOTD_PROG_NOTIFY_HTTP	got-notify-http
 33 ba97b2d7 2024-03-20 stsp 
 34 ba97b2d7 2024-03-20 stsp #define GOTD_PATH_PROG_NOTIFY_EMAIL \
 35 ba97b2d7 2024-03-20 stsp 	GOTD_STRINGVAL(GOT_LIBEXECDIR) "/" \
 36 ba97b2d7 2024-03-20 stsp 	GOTD_STRINGVAL(GOTD_PROG_NOTIFY_EMAIL)
 37 ba97b2d7 2024-03-20 stsp #define GOTD_PATH_PROG_NOTIFY_HTTP \
 38 ba97b2d7 2024-03-20 stsp 	GOTD_STRINGVAL(GOT_LIBEXECDIR) "/" \
 39 ba97b2d7 2024-03-20 stsp 	GOTD_STRINGVAL(GOTD_PROG_NOTIFY_HTTP)
 40 ba97b2d7 2024-03-20 stsp 
 41 13b2bc37 2022-10-23 stsp #define GOTD_MAXCLIENTS		1024
 42 7a0564e3 2022-12-30 stsp #define GOTD_MAX_CONN_PER_UID	4
 43 13b2bc37 2022-10-23 stsp #define GOTD_FD_RESERVE		5
 44 13b2bc37 2022-10-23 stsp #define GOTD_FD_NEEDED		6
 45 8c6fc146 2022-11-17 stsp #define GOTD_FILENO_MSG_PIPE	3
 46 13b2bc37 2022-10-23 stsp 
 47 40b85cca 2023-01-03 stsp #define GOTD_DEFAULT_REQUEST_TIMEOUT	3600
 48 40b85cca 2023-01-03 stsp 
 49 13b2bc37 2022-10-23 stsp /* Client hash tables need some extra room. */
 50 13b2bc37 2022-10-23 stsp #define GOTD_CLIENT_TABLE_SIZE (GOTD_MAXCLIENTS * 4)
 51 13b2bc37 2022-10-23 stsp 
 52 13b2bc37 2022-10-23 stsp enum gotd_procid {
 53 13b2bc37 2022-10-23 stsp 	PROC_GOTD	= 0,
 54 d93ecf7d 2022-12-14 stsp 	PROC_LISTEN,
 55 5e25db14 2022-12-29 stsp 	PROC_AUTH,
 56 b0614828 2023-06-19 stsp 	PROC_SESSION_READ,
 57 b0614828 2023-06-19 stsp 	PROC_SESSION_WRITE,
 58 13b2bc37 2022-10-23 stsp 	PROC_REPO_READ,
 59 13b2bc37 2022-10-23 stsp 	PROC_REPO_WRITE,
 60 4b3827cd 2023-07-08 stsp 	PROC_GITWRAPPER,
 61 ba97b2d7 2024-03-20 stsp 	PROC_NOTIFY,
 62 13b2bc37 2022-10-23 stsp 	PROC_MAX,
 63 13b2bc37 2022-10-23 stsp };
 64 13b2bc37 2022-10-23 stsp 
 65 13b2bc37 2022-10-23 stsp struct gotd_imsgev {
 66 13b2bc37 2022-10-23 stsp 	struct imsgbuf	 ibuf;
 67 13b2bc37 2022-10-23 stsp 	void		(*handler)(int, short, void *);
 68 13b2bc37 2022-10-23 stsp 	void		*handler_arg;
 69 13b2bc37 2022-10-23 stsp 	struct event	 ev;
 70 13b2bc37 2022-10-23 stsp 	short		 events;
 71 0ccf3acb 2022-11-16 stsp };
 72 0ccf3acb 2022-11-16 stsp 
 73 0ccf3acb 2022-11-16 stsp enum gotd_access {
 74 0ccf3acb 2022-11-16 stsp 	GOTD_ACCESS_PERMITTED = 1,
 75 0ccf3acb 2022-11-16 stsp 	GOTD_ACCESS_DENIED
 76 0ccf3acb 2022-11-16 stsp };
 77 0ccf3acb 2022-11-16 stsp 
 78 0ccf3acb 2022-11-16 stsp struct gotd_access_rule {
 79 0ccf3acb 2022-11-16 stsp 	STAILQ_ENTRY(gotd_access_rule) entry;
 80 0ccf3acb 2022-11-16 stsp 
 81 0ccf3acb 2022-11-16 stsp 	enum gotd_access access;
 82 0ccf3acb 2022-11-16 stsp 
 83 0ccf3acb 2022-11-16 stsp 	int authorization;
 84 0ccf3acb 2022-11-16 stsp #define GOTD_AUTH_READ		0x1
 85 0ccf3acb 2022-11-16 stsp #define GOTD_AUTH_WRITE		0x2
 86 0ccf3acb 2022-11-16 stsp 
 87 0ccf3acb 2022-11-16 stsp 	char *identifier;
 88 13b2bc37 2022-10-23 stsp };
 89 0ccf3acb 2022-11-16 stsp STAILQ_HEAD(gotd_access_rule_list, gotd_access_rule);
 90 13b2bc37 2022-10-23 stsp 
 91 ba97b2d7 2024-03-20 stsp enum gotd_notification_target_type {
 92 ba97b2d7 2024-03-20 stsp 	GOTD_NOTIFICATION_VIA_EMAIL,
 93 ba97b2d7 2024-03-20 stsp 	GOTD_NOTIFICATION_VIA_HTTP
 94 ba97b2d7 2024-03-20 stsp };
 95 ba97b2d7 2024-03-20 stsp 
 96 ba97b2d7 2024-03-20 stsp struct gotd_notification_target {
 97 ba97b2d7 2024-03-20 stsp 	STAILQ_ENTRY(gotd_notification_target) entry;
 98 ba97b2d7 2024-03-20 stsp 
 99 ba97b2d7 2024-03-20 stsp 	enum gotd_notification_target_type type;
100 ba97b2d7 2024-03-20 stsp 	union {
101 ba97b2d7 2024-03-20 stsp 		struct {
102 ba97b2d7 2024-03-20 stsp 			char *sender;
103 ba97b2d7 2024-03-20 stsp 			char *recipient;
104 ba97b2d7 2024-03-20 stsp 			char *responder;
105 ba97b2d7 2024-03-20 stsp 			char *hostname;
106 ba97b2d7 2024-03-20 stsp 			char *port;
107 ba97b2d7 2024-03-20 stsp 		} email;
108 ba97b2d7 2024-03-20 stsp 		struct {
109 ba97b2d7 2024-03-20 stsp 			char *url;
110 ba97b2d7 2024-03-20 stsp 			char *user;
111 ba97b2d7 2024-03-20 stsp 			char *password;
112 ba97b2d7 2024-03-20 stsp 		} http;
113 ba97b2d7 2024-03-20 stsp 	} conf;
114 ba97b2d7 2024-03-20 stsp };
115 ba97b2d7 2024-03-20 stsp STAILQ_HEAD(gotd_notification_targets, gotd_notification_target);
116 ba97b2d7 2024-03-20 stsp 
117 13b2bc37 2022-10-23 stsp struct gotd_repo {
118 13b2bc37 2022-10-23 stsp 	TAILQ_ENTRY(gotd_repo)	 entry;
119 13b2bc37 2022-10-23 stsp 
120 13b2bc37 2022-10-23 stsp 	char name[NAME_MAX];
121 13b2bc37 2022-10-23 stsp 	char path[PATH_MAX];
122 0ccf3acb 2022-11-16 stsp 
123 0ccf3acb 2022-11-16 stsp 	struct gotd_access_rule_list rules;
124 9afa3de2 2023-04-04 stsp 	struct got_pathlist_head protected_tag_namespaces;
125 9afa3de2 2023-04-04 stsp 	struct got_pathlist_head protected_branch_namespaces;
126 9afa3de2 2023-04-04 stsp 	struct got_pathlist_head protected_branches;
127 ba97b2d7 2024-03-20 stsp 
128 ba97b2d7 2024-03-20 stsp 	struct got_pathlist_head notification_refs;
129 ba97b2d7 2024-03-20 stsp 	struct got_pathlist_head notification_ref_namespaces;
130 ba97b2d7 2024-03-20 stsp 	struct gotd_notification_targets notification_targets;
131 13b2bc37 2022-10-23 stsp };
132 13b2bc37 2022-10-23 stsp TAILQ_HEAD(gotd_repolist, gotd_repo);
133 13b2bc37 2022-10-23 stsp 
134 13b2bc37 2022-10-23 stsp struct gotd_client_capability {
135 13b2bc37 2022-10-23 stsp 	char *key;
136 13b2bc37 2022-10-23 stsp 	char *value;
137 13b2bc37 2022-10-23 stsp };
138 13b2bc37 2022-10-23 stsp 
139 13b2bc37 2022-10-23 stsp struct gotd_object_id_array {
140 13b2bc37 2022-10-23 stsp 	struct got_object_id		**ids;
141 13b2bc37 2022-10-23 stsp 	size_t				 nalloc;
142 13b2bc37 2022-10-23 stsp 	size_t				 nids;
143 13b2bc37 2022-10-23 stsp };
144 13b2bc37 2022-10-23 stsp 
145 40b85cca 2023-01-03 stsp struct gotd_uid_connection_limit {
146 40b85cca 2023-01-03 stsp 	uid_t uid;
147 40b85cca 2023-01-03 stsp 	int max_connections;
148 40b85cca 2023-01-03 stsp };
149 c929736a 2023-06-22 op 
150 c929736a 2023-06-22 op struct gotd_child_proc;
151 40b85cca 2023-01-03 stsp 
152 13b2bc37 2022-10-23 stsp struct gotd {
153 13b2bc37 2022-10-23 stsp 	pid_t pid;
154 13b2bc37 2022-10-23 stsp 	char unix_socket_path[PATH_MAX];
155 13b2bc37 2022-10-23 stsp 	char user_name[32];
156 13b2bc37 2022-10-23 stsp 	struct gotd_repolist repos;
157 13b2bc37 2022-10-23 stsp 	int nrepos;
158 c929736a 2023-06-22 op 	struct gotd_child_proc *listen_proc;
159 ba97b2d7 2024-03-20 stsp 	struct gotd_child_proc *notify_proc;
160 ba97b2d7 2024-03-20 stsp 	int notifications_enabled;
161 40b85cca 2023-01-03 stsp 	struct timeval request_timeout;
162 40b85cca 2023-01-03 stsp 	struct timeval auth_timeout;
163 40b85cca 2023-01-03 stsp 	struct gotd_uid_connection_limit *connection_limits;
164 40b85cca 2023-01-03 stsp 	size_t nconnection_limits;
165 b50a2b46 2022-12-29 stsp 
166 b50a2b46 2022-12-29 stsp 	char *argv0;
167 b50a2b46 2022-12-29 stsp 	const char *confpath;
168 b50a2b46 2022-12-29 stsp 	int daemonize;
169 13b2bc37 2022-10-23 stsp 	int verbosity;
170 13b2bc37 2022-10-23 stsp };
171 13b2bc37 2022-10-23 stsp 
172 13b2bc37 2022-10-23 stsp enum gotd_imsg_type {
173 13b2bc37 2022-10-23 stsp 	/* An error occured while processing a request. */
174 13b2bc37 2022-10-23 stsp 	GOTD_IMSG_ERROR,
175 13b2bc37 2022-10-23 stsp 
176 f1752522 2022-10-29 stsp 	/* Commands used by gotctl(8). */
177 f1752522 2022-10-29 stsp 	GOTD_IMSG_INFO,
178 f1752522 2022-10-29 stsp 	GOTD_IMSG_INFO_REPO,
179 f1752522 2022-10-29 stsp 	GOTD_IMSG_INFO_CLIENT,
180 f1752522 2022-10-29 stsp 	GOTD_IMSG_STOP,
181 f1752522 2022-10-29 stsp 
182 13b2bc37 2022-10-23 stsp 	/* Request a list of references. */
183 13b2bc37 2022-10-23 stsp 	GOTD_IMSG_LIST_REFS,
184 13b2bc37 2022-10-23 stsp 	GOTD_IMSG_LIST_REFS_INTERNAL,
185 13b2bc37 2022-10-23 stsp 
186 13b2bc37 2022-10-23 stsp 	/* References. */
187 13b2bc37 2022-10-23 stsp 	GOTD_IMSG_REFLIST,
188 13b2bc37 2022-10-23 stsp 	GOTD_IMSG_REF,
189 13b2bc37 2022-10-23 stsp 	GOTD_IMSG_SYMREF,
190 13b2bc37 2022-10-23 stsp 
191 13b2bc37 2022-10-23 stsp 	/* Git protocol capabilities. */
192 13b2bc37 2022-10-23 stsp 	GOTD_IMSG_CAPABILITIES,
193 13b2bc37 2022-10-23 stsp 	GOTD_IMSG_CAPABILITY,
194 13b2bc37 2022-10-23 stsp 
195 13b2bc37 2022-10-23 stsp 	/* Git protocol chatter. */
196 13b2bc37 2022-10-23 stsp 	GOTD_IMSG_WANT,		/* The client wants an object. */
197 13b2bc37 2022-10-23 stsp 	GOTD_IMSG_HAVE,		/* The client has an object. */
198 13b2bc37 2022-10-23 stsp 	GOTD_IMSG_ACK,		/* The server has an object or a reference. */
199 13b2bc37 2022-10-23 stsp 	GOTD_IMSG_NAK,		/* The server does not have an object/ref. */
200 13b2bc37 2022-10-23 stsp 	GOTD_IMSG_REF_UPDATE,	/* The client wants to update a reference. */
201 13b2bc37 2022-10-23 stsp 	GOTD_IMSG_REF_DELETE,	/* The client wants to delete a reference. */
202 13b2bc37 2022-10-23 stsp 	GOTD_IMSG_FLUSH,	/* The client sent a flush packet. */
203 13b2bc37 2022-10-23 stsp 	GOTD_IMSG_DONE,		/* The client is done chatting. */
204 13b2bc37 2022-10-23 stsp 
205 13b2bc37 2022-10-23 stsp 	/* Sending or receiving a pack file. */
206 13b2bc37 2022-10-23 stsp 	GOTD_IMSG_SEND_PACKFILE, /* The server is sending a pack file. */
207 13b2bc37 2022-10-23 stsp 	GOTD_IMSG_RECV_PACKFILE, /* The server is receiving a pack file. */
208 13b2bc37 2022-10-23 stsp 	GOTD_IMSG_PACKIDX_FILE,  /* Temporary file handle for new pack index. */
209 13b2bc37 2022-10-23 stsp 	GOTD_IMSG_PACKFILE_PIPE, /* Pipe to send/receive a pack file stream. */
210 13b2bc37 2022-10-23 stsp 	GOTD_IMSG_PACKFILE_PROGRESS, /* Progress reporting. */
211 13b2bc37 2022-10-23 stsp 	GOTD_IMSG_PACKFILE_READY, /* Pack file is ready to be sent. */
212 13b2bc37 2022-10-23 stsp 	GOTD_IMSG_PACKFILE_STATUS, /* Received pack success/failure status. */
213 13b2bc37 2022-10-23 stsp 	GOTD_IMSG_PACKFILE_INSTALL, /* Received pack file can be installed. */
214 13b2bc37 2022-10-23 stsp 	GOTD_IMSG_PACKFILE_DONE, /* Pack file has been sent/received. */
215 13b2bc37 2022-10-23 stsp 
216 13b2bc37 2022-10-23 stsp 	/* Reference updates. */
217 13b2bc37 2022-10-23 stsp 	GOTD_IMSG_REF_UPDATES_START, /* Ref updates starting. */
218 13b2bc37 2022-10-23 stsp 	GOTD_IMSG_REF_UPDATE_OK, /* Update went OK. */
219 13b2bc37 2022-10-23 stsp 	GOTD_IMSG_REF_UPDATE_NG, /* Update was not good. */
220 13b2bc37 2022-10-23 stsp 	GOTD_IMSG_REFS_UPDATED, /* The server proccessed all ref updates. */
221 13b2bc37 2022-10-23 stsp 
222 d93ecf7d 2022-12-14 stsp 	/* Client connections. */
223 13b2bc37 2022-10-23 stsp 	GOTD_IMSG_DISCONNECT,
224 d93ecf7d 2022-12-14 stsp 	GOTD_IMSG_CONNECT,
225 b50a2b46 2022-12-29 stsp 
226 b50a2b46 2022-12-29 stsp 	/* Child process management. */
227 ae7c1b78 2023-01-10 stsp 	GOTD_IMSG_CLIENT_SESSION_READY,
228 b50a2b46 2022-12-29 stsp 	GOTD_IMSG_REPO_CHILD_READY,
229 ae7c1b78 2023-01-10 stsp 	GOTD_IMSG_CONNECT_REPO_CHILD,
230 5e25db14 2022-12-29 stsp 
231 5e25db14 2022-12-29 stsp 	/* Auth child process. */
232 5e25db14 2022-12-29 stsp 	GOTD_IMSG_AUTHENTICATE,
233 5e25db14 2022-12-29 stsp 	GOTD_IMSG_ACCESS_GRANTED,
234 ba97b2d7 2024-03-20 stsp 
235 ba97b2d7 2024-03-20 stsp 	/* Notify child process. */
236 ba97b2d7 2024-03-20 stsp 	GOTD_IMSG_CONNECT_NOTIFIER,
237 ba97b2d7 2024-03-20 stsp 	GOTD_IMSG_CONNECT_SESSION,
238 ba97b2d7 2024-03-20 stsp 	GOTD_IMSG_NOTIFY,
239 ba97b2d7 2024-03-20 stsp 	GOTD_IMSG_NOTIFICATION_SENT
240 13b2bc37 2022-10-23 stsp };
241 13b2bc37 2022-10-23 stsp 
242 13b2bc37 2022-10-23 stsp /* Structure for GOTD_IMSG_ERROR. */
243 13b2bc37 2022-10-23 stsp struct gotd_imsg_error {
244 13b2bc37 2022-10-23 stsp 	int code; /* an error code from got_error.h */
245 13b2bc37 2022-10-23 stsp 	int errno_code; /* in case code equals GOT_ERR_ERRNO */
246 13b2bc37 2022-10-23 stsp 	uint32_t client_id;
247 13b2bc37 2022-10-23 stsp 	char msg[GOT_ERR_MAX_MSG_SIZE];
248 13b2bc37 2022-10-23 stsp } __attribute__((__packed__));
249 13b2bc37 2022-10-23 stsp 
250 f1752522 2022-10-29 stsp /* Structure for GOTD_IMSG_INFO. */
251 f1752522 2022-10-29 stsp struct gotd_imsg_info {
252 f1752522 2022-10-29 stsp 	pid_t pid;
253 f1752522 2022-10-29 stsp 	int verbosity;
254 f1752522 2022-10-29 stsp 	int nrepos;
255 f1752522 2022-10-29 stsp 	int nclients;
256 f1752522 2022-10-29 stsp 
257 f1752522 2022-10-29 stsp 	/* Followed by nrepos GOTD_IMSG_INFO_REPO messages. */
258 f1752522 2022-10-29 stsp 	/* Followed by nclients GOTD_IMSG_INFO_CLIENT messages. */
259 f1752522 2022-10-29 stsp };
260 f1752522 2022-10-29 stsp 
261 f1752522 2022-10-29 stsp /* Structure for GOTD_IMSG_INFO_REPO. */
262 f1752522 2022-10-29 stsp struct gotd_imsg_info_repo {
263 f1752522 2022-10-29 stsp 	char repo_name[NAME_MAX];
264 f1752522 2022-10-29 stsp 	char repo_path[PATH_MAX];
265 f1752522 2022-10-29 stsp };
266 f1752522 2022-10-29 stsp 
267 f1752522 2022-10-29 stsp /* Structure for GOTD_IMSG_INFO_CLIENT */
268 f1752522 2022-10-29 stsp struct gotd_imsg_info_client {
269 f1752522 2022-10-29 stsp 	uid_t euid;
270 f1752522 2022-10-29 stsp 	gid_t egid;
271 f1752522 2022-10-29 stsp 	char repo_name[NAME_MAX];
272 f1752522 2022-10-29 stsp 	int is_writing;
273 ae7c1b78 2023-01-10 stsp 	pid_t session_child_pid;
274 ae7c1b78 2023-01-10 stsp 	pid_t repo_child_pid;
275 f1752522 2022-10-29 stsp };
276 f1752522 2022-10-29 stsp 
277 13b2bc37 2022-10-23 stsp /* Structure for GOTD_IMSG_LIST_REFS. */
278 13b2bc37 2022-10-23 stsp struct gotd_imsg_list_refs {
279 13b2bc37 2022-10-23 stsp 	char repo_name[NAME_MAX];
280 13b2bc37 2022-10-23 stsp 	int client_is_reading; /* 1 if reading, 0 if writing */
281 13b2bc37 2022-10-23 stsp };
282 13b2bc37 2022-10-23 stsp 
283 13b2bc37 2022-10-23 stsp /* Structure for GOTD_IMSG_REFLIST. */
284 13b2bc37 2022-10-23 stsp struct gotd_imsg_reflist {
285 13b2bc37 2022-10-23 stsp 	size_t nrefs;
286 13b2bc37 2022-10-23 stsp 
287 13b2bc37 2022-10-23 stsp 	/* Followed by nrefs times of gotd_imsg_ref/gotd_imsg_symref data. */
288 13b2bc37 2022-10-23 stsp } __attribute__((__packed__));
289 13b2bc37 2022-10-23 stsp 
290 13b2bc37 2022-10-23 stsp /* Structure for GOTD_IMSG_REF data. */
291 13b2bc37 2022-10-23 stsp struct gotd_imsg_ref {
292 13b2bc37 2022-10-23 stsp 	uint8_t id[SHA1_DIGEST_LENGTH];
293 13b2bc37 2022-10-23 stsp 	size_t name_len;
294 13b2bc37 2022-10-23 stsp 	/* Followed by name_len data bytes. */
295 13b2bc37 2022-10-23 stsp } __attribute__((__packed__));
296 13b2bc37 2022-10-23 stsp 
297 13b2bc37 2022-10-23 stsp /* Structure for GOTD_IMSG_SYMREF data. */
298 13b2bc37 2022-10-23 stsp struct gotd_imsg_symref {
299 13b2bc37 2022-10-23 stsp 	size_t name_len;
300 13b2bc37 2022-10-23 stsp 	size_t target_len;
301 13b2bc37 2022-10-23 stsp 	uint8_t target_id[SHA1_DIGEST_LENGTH];
302 13b2bc37 2022-10-23 stsp 
303 13b2bc37 2022-10-23 stsp 	/*
304 13b2bc37 2022-10-23 stsp 	 * Followed by name_len + target_len data bytes.
305 13b2bc37 2022-10-23 stsp 	 */
306 13b2bc37 2022-10-23 stsp } __attribute__((__packed__));
307 13b2bc37 2022-10-23 stsp 
308 13b2bc37 2022-10-23 stsp /* Structure for GOTD_IMSG_CAPABILITIES data. */
309 13b2bc37 2022-10-23 stsp struct gotd_imsg_capabilities {
310 13b2bc37 2022-10-23 stsp 	size_t ncapabilities;
311 13b2bc37 2022-10-23 stsp 
312 13b2bc37 2022-10-23 stsp 	/*
313 13b2bc37 2022-10-23 stsp 	 * Followed by ncapabilities * GOTD_IMSG_CAPABILITY.
314 13b2bc37 2022-10-23 stsp 	 */
315 13b2bc37 2022-10-23 stsp } __attribute__((__packed__));
316 13b2bc37 2022-10-23 stsp 
317 13b2bc37 2022-10-23 stsp /* Structure for GOTD_IMSG_CAPABILITY data. */
318 13b2bc37 2022-10-23 stsp struct gotd_imsg_capability {
319 13b2bc37 2022-10-23 stsp 	size_t key_len;
320 13b2bc37 2022-10-23 stsp 	size_t value_len;
321 13b2bc37 2022-10-23 stsp 
322 13b2bc37 2022-10-23 stsp 	/*
323 13b2bc37 2022-10-23 stsp 	 * Followed by key_len + value_len data bytes.
324 13b2bc37 2022-10-23 stsp 	 */
325 13b2bc37 2022-10-23 stsp } __attribute__((__packed__));
326 13b2bc37 2022-10-23 stsp 
327 13b2bc37 2022-10-23 stsp /* Structure for GOTD_IMSG_WANT data. */
328 13b2bc37 2022-10-23 stsp struct gotd_imsg_want {
329 13b2bc37 2022-10-23 stsp 	uint8_t object_id[SHA1_DIGEST_LENGTH];
330 13b2bc37 2022-10-23 stsp } __attribute__((__packed__));
331 13b2bc37 2022-10-23 stsp 
332 13b2bc37 2022-10-23 stsp /* Structure for GOTD_IMSG_HAVE data. */
333 13b2bc37 2022-10-23 stsp struct gotd_imsg_have {
334 13b2bc37 2022-10-23 stsp 	uint8_t object_id[SHA1_DIGEST_LENGTH];
335 13b2bc37 2022-10-23 stsp } __attribute__((__packed__));
336 13b2bc37 2022-10-23 stsp 
337 13b2bc37 2022-10-23 stsp /* Structure for GOTD_IMSG_ACK data. */
338 13b2bc37 2022-10-23 stsp struct gotd_imsg_ack {
339 13b2bc37 2022-10-23 stsp 	uint8_t object_id[SHA1_DIGEST_LENGTH];
340 13b2bc37 2022-10-23 stsp } __attribute__((__packed__));
341 13b2bc37 2022-10-23 stsp 
342 13b2bc37 2022-10-23 stsp /* Structure for GOTD_IMSG_NAK data. */
343 13b2bc37 2022-10-23 stsp struct gotd_imsg_nak {
344 13b2bc37 2022-10-23 stsp 	uint8_t object_id[SHA1_DIGEST_LENGTH];
345 13b2bc37 2022-10-23 stsp } __attribute__((__packed__));
346 13b2bc37 2022-10-23 stsp 
347 13b2bc37 2022-10-23 stsp /* Structure for GOTD_IMSG_PACKFILE_STATUS data. */
348 13b2bc37 2022-10-23 stsp struct gotd_imsg_packfile_status {
349 13b2bc37 2022-10-23 stsp 	size_t reason_len;
350 13b2bc37 2022-10-23 stsp 
351 13b2bc37 2022-10-23 stsp 	/* Followed by reason_len data bytes. */
352 13b2bc37 2022-10-23 stsp } __attribute__((__packed__));
353 13b2bc37 2022-10-23 stsp 
354 13b2bc37 2022-10-23 stsp 
355 13b2bc37 2022-10-23 stsp /* Structure for GOTD_IMSG_REF_UPDATE data. */
356 13b2bc37 2022-10-23 stsp struct gotd_imsg_ref_update {
357 13b2bc37 2022-10-23 stsp 	uint8_t old_id[SHA1_DIGEST_LENGTH];
358 13b2bc37 2022-10-23 stsp 	uint8_t new_id[SHA1_DIGEST_LENGTH];
359 13b2bc37 2022-10-23 stsp 	int ref_is_new;
360 9a8e357c 2023-01-28 op 	int delete_ref;
361 13b2bc37 2022-10-23 stsp 	size_t name_len;
362 13b2bc37 2022-10-23 stsp 
363 13b2bc37 2022-10-23 stsp 	/* Followed by name_len data bytes. */
364 13b2bc37 2022-10-23 stsp } __attribute__((__packed__));
365 13b2bc37 2022-10-23 stsp 
366 13b2bc37 2022-10-23 stsp /* Structure for GOTD_IMSG_REF_UPDATES_START data. */
367 13b2bc37 2022-10-23 stsp struct gotd_imsg_ref_updates_start {
368 13b2bc37 2022-10-23 stsp 	int nref_updates;
369 13b2bc37 2022-10-23 stsp 
370 13b2bc37 2022-10-23 stsp 	/* Followed by nref_updates GOT_IMSG_REF_UPDATE_OK/NG messages. */
371 13b2bc37 2022-10-23 stsp };
372 13b2bc37 2022-10-23 stsp 
373 13b2bc37 2022-10-23 stsp /* Structure for GOTD_IMSG_REF_UPDATE_OK data. */
374 13b2bc37 2022-10-23 stsp struct gotd_imsg_ref_update_ok {
375 13b2bc37 2022-10-23 stsp 	uint8_t old_id[SHA1_DIGEST_LENGTH];
376 13b2bc37 2022-10-23 stsp 	uint8_t new_id[SHA1_DIGEST_LENGTH];
377 13b2bc37 2022-10-23 stsp 	int ref_is_new;
378 13b2bc37 2022-10-23 stsp 	size_t name_len;
379 13b2bc37 2022-10-23 stsp 
380 13b2bc37 2022-10-23 stsp 	/* Followed by name_len data bytes. */
381 13b2bc37 2022-10-23 stsp } __attribute__((__packed__));
382 13b2bc37 2022-10-23 stsp 
383 13b2bc37 2022-10-23 stsp /* Structure for GOTD_IMSG_REF_UPDATE_NG data. */
384 13b2bc37 2022-10-23 stsp struct gotd_imsg_ref_update_ng {
385 13b2bc37 2022-10-23 stsp 	uint8_t old_id[SHA1_DIGEST_LENGTH];
386 13b2bc37 2022-10-23 stsp 	uint8_t new_id[SHA1_DIGEST_LENGTH];
387 13b2bc37 2022-10-23 stsp 	size_t name_len;
388 13b2bc37 2022-10-23 stsp 	size_t reason_len;
389 13b2bc37 2022-10-23 stsp 
390 13b2bc37 2022-10-23 stsp 	/* Followed by name_len + reason_len data bytes. */
391 13b2bc37 2022-10-23 stsp } __attribute__((__packed__));
392 13b2bc37 2022-10-23 stsp 
393 13b2bc37 2022-10-23 stsp /* Structure for GOTD_IMSG_SEND_PACKFILE data. */
394 13b2bc37 2022-10-23 stsp struct gotd_imsg_send_packfile {
395 13b2bc37 2022-10-23 stsp 	int report_progress;
396 13b2bc37 2022-10-23 stsp 
397 13b2bc37 2022-10-23 stsp 	/* delta cache file is sent as a file descriptor */
398 13b2bc37 2022-10-23 stsp 
399 13b2bc37 2022-10-23 stsp 	/* followed by two GOTD_IMSG_PACKFILE_PIPE messages */
400 13b2bc37 2022-10-23 stsp };
401 13b2bc37 2022-10-23 stsp 
402 13b2bc37 2022-10-23 stsp /* Structure for GOTD_IMSG_RECV_PACKFILE data. */
403 13b2bc37 2022-10-23 stsp struct gotd_imsg_recv_packfile {
404 13b2bc37 2022-10-23 stsp 	int report_status;
405 13b2bc37 2022-10-23 stsp 
406 13b2bc37 2022-10-23 stsp 	/* pack destination temp file is sent as a file descriptor */
407 13b2bc37 2022-10-23 stsp };
408 13b2bc37 2022-10-23 stsp 
409 13b2bc37 2022-10-23 stsp /*
410 13b2bc37 2022-10-23 stsp  * Structure for GOTD_IMSG_PACKFILE_PROGRESS and
411 13b2bc37 2022-10-23 stsp  * GOTD_IMSG_PACKFILE_READY data.
412 13b2bc37 2022-10-23 stsp  */
413 13b2bc37 2022-10-23 stsp struct gotd_imsg_packfile_progress {
414 13b2bc37 2022-10-23 stsp 	int ncolored;
415 13b2bc37 2022-10-23 stsp 	int nfound;
416 13b2bc37 2022-10-23 stsp 	int ntrees;
417 13b2bc37 2022-10-23 stsp 	off_t packfile_size;
418 13b2bc37 2022-10-23 stsp 	int ncommits;
419 13b2bc37 2022-10-23 stsp 	int nobj_total;
420 13b2bc37 2022-10-23 stsp 	int nobj_deltify;
421 13b2bc37 2022-10-23 stsp 	int nobj_written;
422 13b2bc37 2022-10-23 stsp };
423 13b2bc37 2022-10-23 stsp 
424 13b2bc37 2022-10-23 stsp /* Structure for GOTD_IMSG_PACKFILE_INSTALL. */
425 13b2bc37 2022-10-23 stsp struct gotd_imsg_packfile_install {
426 13b2bc37 2022-10-23 stsp 	uint8_t pack_sha1[SHA1_DIGEST_LENGTH];
427 13b2bc37 2022-10-23 stsp };
428 13b2bc37 2022-10-23 stsp 
429 13b2bc37 2022-10-23 stsp /* Structure for GOTD_IMSG_DISCONNECT data. */
430 13b2bc37 2022-10-23 stsp struct gotd_imsg_disconnect {
431 13b2bc37 2022-10-23 stsp 	uint32_t client_id;
432 13b2bc37 2022-10-23 stsp };
433 13b2bc37 2022-10-23 stsp 
434 d93ecf7d 2022-12-14 stsp /* Structure for GOTD_IMSG_CONNECT. */
435 d93ecf7d 2022-12-14 stsp struct gotd_imsg_connect {
436 d93ecf7d 2022-12-14 stsp 	uint32_t client_id;
437 365cf0f3 2022-12-29 stsp 	uid_t euid;
438 365cf0f3 2022-12-29 stsp 	gid_t egid;
439 ba97b2d7 2024-03-20 stsp 	size_t username_len;
440 ba97b2d7 2024-03-20 stsp 
441 ba97b2d7 2024-03-20 stsp 	/* Followed by username_len data bytes. */
442 d93ecf7d 2022-12-14 stsp };
443 d93ecf7d 2022-12-14 stsp 
444 ae7c1b78 2023-01-10 stsp /* Structure for GOTD_IMSG_CONNECT_REPO_CHILD. */
445 ae7c1b78 2023-01-10 stsp struct gotd_imsg_connect_repo_child {
446 ae7c1b78 2023-01-10 stsp 	enum gotd_procid proc_id;
447 ae7c1b78 2023-01-10 stsp 
448 ae7c1b78 2023-01-10 stsp 	/* repo child imsg pipe is passed via imsg fd */
449 ae7c1b78 2023-01-10 stsp };
450 ae7c1b78 2023-01-10 stsp 
451 5e25db14 2022-12-29 stsp /* Structure for GOTD_IMSG_AUTHENTICATE. */
452 5e25db14 2022-12-29 stsp struct gotd_imsg_auth {
453 5e25db14 2022-12-29 stsp 	uid_t euid;
454 5e25db14 2022-12-29 stsp 	gid_t egid;
455 5e25db14 2022-12-29 stsp 	int required_auth;
456 ba97b2d7 2024-03-20 stsp 	uint32_t client_id;
457 ba97b2d7 2024-03-20 stsp };
458 ba97b2d7 2024-03-20 stsp 
459 ba97b2d7 2024-03-20 stsp /* Structures for GOTD_IMSG_NOTIFY. */
460 ba97b2d7 2024-03-20 stsp enum gotd_notification_action {
461 ba97b2d7 2024-03-20 stsp 	GOTD_NOTIF_ACTION_CREATED,
462 ba97b2d7 2024-03-20 stsp 	GOTD_NOTIF_ACTION_REMOVED,
463 ba97b2d7 2024-03-20 stsp 	GOTD_NOTIF_ACTION_CHANGED
464 ba97b2d7 2024-03-20 stsp };
465 ba97b2d7 2024-03-20 stsp /* IMSG_NOTIFY session <-> repo_write */
466 ba97b2d7 2024-03-20 stsp struct gotd_imsg_notification_content {
467 ba97b2d7 2024-03-20 stsp 	enum gotd_notification_action action;
468 ba97b2d7 2024-03-20 stsp 	uint8_t old_id[SHA1_DIGEST_LENGTH];
469 ba97b2d7 2024-03-20 stsp 	uint8_t new_id[SHA1_DIGEST_LENGTH];
470 ba97b2d7 2024-03-20 stsp 	size_t refname_len;
471 ba97b2d7 2024-03-20 stsp 	/* Followed by refname_len data bytes. */
472 5e25db14 2022-12-29 stsp };
473 ba97b2d7 2024-03-20 stsp /* IMSG_NOTIFY session -> notify*/
474 ba97b2d7 2024-03-20 stsp struct gotd_imsg_notify {
475 ba97b2d7 2024-03-20 stsp 	char repo_name[NAME_MAX];
476 ba97b2d7 2024-03-20 stsp 	char subject_line[64];
477 ba97b2d7 2024-03-20 stsp };
478 5e25db14 2022-12-29 stsp 
479 4b3827cd 2023-07-08 stsp int parse_config(const char *, enum gotd_procid, struct gotd *);
480 ba97b2d7 2024-03-20 stsp struct gotd_repo *gotd_find_repo_by_name(const char *, struct gotd_repolist *);
481 9afa3de2 2023-04-04 stsp struct gotd_repo *gotd_find_repo_by_path(const char *, struct gotd *);
482 eeb616b7 2023-04-14 stsp struct gotd_uid_connection_limit *gotd_find_uid_connection_limit(
483 eeb616b7 2023-04-14 stsp     struct gotd_uid_connection_limit *limits, size_t nlimits, uid_t uid);
484 1963be61 2023-04-14 stsp int gotd_parseuid(const char *s, uid_t *uid);
485 ba97b2d7 2024-03-20 stsp const struct got_error *gotd_parse_url(char **, char **, char **,
486 ba97b2d7 2024-03-20 stsp     char **, const char *);
487 13b2bc37 2022-10-23 stsp 
488 13b2bc37 2022-10-23 stsp /* imsg.c */
489 13b2bc37 2022-10-23 stsp const struct got_error *gotd_imsg_flush(struct imsgbuf *);
490 13b2bc37 2022-10-23 stsp const struct got_error *gotd_imsg_recv(struct imsg *, struct imsgbuf *, size_t);
491 13b2bc37 2022-10-23 stsp const struct got_error *gotd_imsg_poll_recv(struct imsg *, struct imsgbuf *,
492 13b2bc37 2022-10-23 stsp     size_t);
493 13b2bc37 2022-10-23 stsp const struct got_error *gotd_imsg_recv_error(uint32_t *client_id,
494 13b2bc37 2022-10-23 stsp     struct imsg *imsg);
495 13b2bc37 2022-10-23 stsp int gotd_imsg_send_error(struct imsgbuf *ibuf, uint32_t, uint32_t,
496 13b2bc37 2022-10-23 stsp     const struct got_error *);
497 13b2bc37 2022-10-23 stsp int gotd_imsg_send_error_event(struct gotd_imsgev *, uint32_t, uint32_t,
498 13b2bc37 2022-10-23 stsp     const struct got_error *);
499 13b2bc37 2022-10-23 stsp void gotd_imsg_event_add(struct gotd_imsgev *);
500 13b2bc37 2022-10-23 stsp int gotd_imsg_compose_event(struct gotd_imsgev *, uint16_t, uint32_t, int,
501 13b2bc37 2022-10-23 stsp     void *, uint16_t);
502 13b2bc37 2022-10-23 stsp int gotd_imsg_forward(struct gotd_imsgev *, struct imsg *, int);
503 13b2bc37 2022-10-23 stsp 
504 13b2bc37 2022-10-23 stsp void gotd_imsg_send_ack(struct got_object_id *, struct imsgbuf *,
505 13b2bc37 2022-10-23 stsp     uint32_t, pid_t);
506 13b2bc37 2022-10-23 stsp void gotd_imsg_send_nak(struct got_object_id *, struct imsgbuf *,
507 13b2bc37 2022-10-23 stsp     uint32_t, pid_t);