1 3efd8e31 2022-10-23 thomas /*
  2 3efd8e31 2022-10-23 thomas  * Copyright (c) 2022 Stefan Sperling <stsp@openbsd.org>
  3 3efd8e31 2022-10-23 thomas  *
  4 3efd8e31 2022-10-23 thomas  * Permission to use, copy, modify, and distribute this software for any
  5 3efd8e31 2022-10-23 thomas  * purpose with or without fee is hereby granted, provided that the above
  6 3efd8e31 2022-10-23 thomas  * copyright notice and this permission notice appear in all copies.
  7 3efd8e31 2022-10-23 thomas  *
  8 3efd8e31 2022-10-23 thomas  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  9 3efd8e31 2022-10-23 thomas  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 10 3efd8e31 2022-10-23 thomas  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 11 3efd8e31 2022-10-23 thomas  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 12 3efd8e31 2022-10-23 thomas  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 13 3efd8e31 2022-10-23 thomas  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 14 3efd8e31 2022-10-23 thomas  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 15 3efd8e31 2022-10-23 thomas  */
 16 3efd8e31 2022-10-23 thomas 
 17 3efd8e31 2022-10-23 thomas 
 18 3efd8e31 2022-10-23 thomas #define GOTD_UNIX_SOCKET "/var/run/gotd.sock"
 19 3efd8e31 2022-10-23 thomas #define GOTD_UNIX_SOCKET_BACKLOG 10
 20 3efd8e31 2022-10-23 thomas #define GOTD_USER	"_gotd"
 21 3efd8e31 2022-10-23 thomas #define GOTD_CONF_PATH	"/etc/gotd.conf"
 22 2b3d32a1 2022-12-30 thomas #define GOTD_EMPTY_PATH	"/var/empty"
 23 3efd8e31 2022-10-23 thomas 
 24 3efd8e31 2022-10-23 thomas #define GOTD_MAXCLIENTS		1024
 25 ba63ab46 2023-01-02 thomas #define GOTD_MAX_CONN_PER_UID	4
 26 3efd8e31 2022-10-23 thomas #define GOTD_FD_RESERVE		5
 27 3efd8e31 2022-10-23 thomas #define GOTD_FD_NEEDED		6
 28 bb3a6ce9 2022-11-17 thomas #define GOTD_FILENO_MSG_PIPE	3
 29 3efd8e31 2022-10-23 thomas 
 30 0781db0e 2023-01-06 thomas #define GOTD_DEFAULT_REQUEST_TIMEOUT	3600
 31 0781db0e 2023-01-06 thomas 
 32 3efd8e31 2022-10-23 thomas /* Client hash tables need some extra room. */
 33 3efd8e31 2022-10-23 thomas #define GOTD_CLIENT_TABLE_SIZE (GOTD_MAXCLIENTS * 4)
 34 3efd8e31 2022-10-23 thomas 
 35 3efd8e31 2022-10-23 thomas enum gotd_procid {
 36 3efd8e31 2022-10-23 thomas 	PROC_GOTD	= 0,
 37 2b3d32a1 2022-12-30 thomas 	PROC_LISTEN,
 38 c669c489 2022-12-30 thomas 	PROC_AUTH,
 39 3efd8e31 2022-10-23 thomas 	PROC_REPO_READ,
 40 3efd8e31 2022-10-23 thomas 	PROC_REPO_WRITE,
 41 3efd8e31 2022-10-23 thomas 	PROC_MAX,
 42 3efd8e31 2022-10-23 thomas };
 43 3efd8e31 2022-10-23 thomas 
 44 3efd8e31 2022-10-23 thomas struct gotd_imsgev {
 45 3efd8e31 2022-10-23 thomas 	struct imsgbuf	 ibuf;
 46 3efd8e31 2022-10-23 thomas 	void		(*handler)(int, short, void *);
 47 3efd8e31 2022-10-23 thomas 	void		*handler_arg;
 48 3efd8e31 2022-10-23 thomas 	struct event	 ev;
 49 3efd8e31 2022-10-23 thomas 	short		 events;
 50 3efd8e31 2022-10-23 thomas };
 51 3efd8e31 2022-10-23 thomas 
 52 3efd8e31 2022-10-23 thomas struct gotd_child_proc {
 53 3efd8e31 2022-10-23 thomas 	pid_t pid;
 54 3efd8e31 2022-10-23 thomas 	enum gotd_procid type;
 55 3efd8e31 2022-10-23 thomas 	char repo_name[NAME_MAX];
 56 414e37cb 2022-12-30 thomas 	char repo_path[PATH_MAX];
 57 3efd8e31 2022-10-23 thomas 	int pipe[2];
 58 3efd8e31 2022-10-23 thomas 	struct gotd_imsgev iev;
 59 3efd8e31 2022-10-23 thomas 	size_t nhelpers;
 60 729a7e24 2022-11-17 thomas };
 61 729a7e24 2022-11-17 thomas 
 62 729a7e24 2022-11-17 thomas enum gotd_access {
 63 729a7e24 2022-11-17 thomas 	GOTD_ACCESS_PERMITTED = 1,
 64 729a7e24 2022-11-17 thomas 	GOTD_ACCESS_DENIED
 65 729a7e24 2022-11-17 thomas };
 66 729a7e24 2022-11-17 thomas 
 67 729a7e24 2022-11-17 thomas struct gotd_access_rule {
 68 729a7e24 2022-11-17 thomas 	STAILQ_ENTRY(gotd_access_rule) entry;
 69 729a7e24 2022-11-17 thomas 
 70 729a7e24 2022-11-17 thomas 	enum gotd_access access;
 71 729a7e24 2022-11-17 thomas 
 72 729a7e24 2022-11-17 thomas 	int authorization;
 73 729a7e24 2022-11-17 thomas #define GOTD_AUTH_READ		0x1
 74 729a7e24 2022-11-17 thomas #define GOTD_AUTH_WRITE		0x2
 75 729a7e24 2022-11-17 thomas 
 76 729a7e24 2022-11-17 thomas 	char *identifier;
 77 3efd8e31 2022-10-23 thomas };
 78 729a7e24 2022-11-17 thomas STAILQ_HEAD(gotd_access_rule_list, gotd_access_rule);
 79 3efd8e31 2022-10-23 thomas 
 80 3efd8e31 2022-10-23 thomas struct gotd_repo {
 81 3efd8e31 2022-10-23 thomas 	TAILQ_ENTRY(gotd_repo)	 entry;
 82 3efd8e31 2022-10-23 thomas 
 83 3efd8e31 2022-10-23 thomas 	char name[NAME_MAX];
 84 3efd8e31 2022-10-23 thomas 	char path[PATH_MAX];
 85 729a7e24 2022-11-17 thomas 
 86 729a7e24 2022-11-17 thomas 	struct gotd_access_rule_list rules;
 87 3efd8e31 2022-10-23 thomas };
 88 3efd8e31 2022-10-23 thomas TAILQ_HEAD(gotd_repolist, gotd_repo);
 89 3efd8e31 2022-10-23 thomas 
 90 3efd8e31 2022-10-23 thomas enum gotd_client_state {
 91 3efd8e31 2022-10-23 thomas 	GOTD_STATE_EXPECT_LIST_REFS,
 92 3efd8e31 2022-10-23 thomas 	GOTD_STATE_EXPECT_CAPABILITIES,
 93 3efd8e31 2022-10-23 thomas 	GOTD_STATE_EXPECT_WANT,
 94 3efd8e31 2022-10-23 thomas 	GOTD_STATE_EXPECT_REF_UPDATE,
 95 3efd8e31 2022-10-23 thomas 	GOTD_STATE_EXPECT_MORE_REF_UPDATES,
 96 3efd8e31 2022-10-23 thomas 	GOTD_STATE_EXPECT_HAVE,
 97 3efd8e31 2022-10-23 thomas 	GOTD_STATE_EXPECT_PACKFILE,
 98 3efd8e31 2022-10-23 thomas 	GOTD_STATE_EXPECT_DONE,
 99 3efd8e31 2022-10-23 thomas 	GOTD_STATE_DONE,
100 3efd8e31 2022-10-23 thomas };
101 3efd8e31 2022-10-23 thomas 
102 3efd8e31 2022-10-23 thomas struct gotd_client_capability {
103 3efd8e31 2022-10-23 thomas 	char *key;
104 3efd8e31 2022-10-23 thomas 	char *value;
105 3efd8e31 2022-10-23 thomas };
106 3efd8e31 2022-10-23 thomas 
107 3efd8e31 2022-10-23 thomas struct gotd_object_id_array {
108 3efd8e31 2022-10-23 thomas 	struct got_object_id		**ids;
109 3efd8e31 2022-10-23 thomas 	size_t				 nalloc;
110 3efd8e31 2022-10-23 thomas 	size_t				 nids;
111 3efd8e31 2022-10-23 thomas };
112 3efd8e31 2022-10-23 thomas 
113 0781db0e 2023-01-06 thomas struct gotd_uid_connection_limit {
114 0781db0e 2023-01-06 thomas 	uid_t uid;
115 0781db0e 2023-01-06 thomas 	int max_connections;
116 0781db0e 2023-01-06 thomas };
117 0781db0e 2023-01-06 thomas 
118 3efd8e31 2022-10-23 thomas struct gotd {
119 3efd8e31 2022-10-23 thomas 	pid_t pid;
120 3efd8e31 2022-10-23 thomas 	char unix_socket_path[PATH_MAX];
121 3efd8e31 2022-10-23 thomas 	char user_name[32];
122 3efd8e31 2022-10-23 thomas 	struct gotd_repolist repos;
123 3efd8e31 2022-10-23 thomas 	int nrepos;
124 85b37c72 2022-12-30 thomas 	struct gotd_child_proc listen_proc;
125 0781db0e 2023-01-06 thomas 	struct timeval request_timeout;
126 0781db0e 2023-01-06 thomas 	struct timeval auth_timeout;
127 0781db0e 2023-01-06 thomas 	struct gotd_uid_connection_limit *connection_limits;
128 0781db0e 2023-01-06 thomas 	size_t nconnection_limits;
129 85b37c72 2022-12-30 thomas 
130 85b37c72 2022-12-30 thomas 	char *argv0;
131 85b37c72 2022-12-30 thomas 	const char *confpath;
132 85b37c72 2022-12-30 thomas 	int daemonize;
133 3efd8e31 2022-10-23 thomas 	int verbosity;
134 3efd8e31 2022-10-23 thomas };
135 3efd8e31 2022-10-23 thomas 
136 3efd8e31 2022-10-23 thomas enum gotd_imsg_type {
137 3efd8e31 2022-10-23 thomas 	/* An error occured while processing a request. */
138 3efd8e31 2022-10-23 thomas 	GOTD_IMSG_ERROR,
139 3efd8e31 2022-10-23 thomas 
140 c902213d 2022-10-29 thomas 	/* Commands used by gotctl(8). */
141 c902213d 2022-10-29 thomas 	GOTD_IMSG_INFO,
142 c902213d 2022-10-29 thomas 	GOTD_IMSG_INFO_REPO,
143 c902213d 2022-10-29 thomas 	GOTD_IMSG_INFO_CLIENT,
144 c902213d 2022-10-29 thomas 	GOTD_IMSG_STOP,
145 c902213d 2022-10-29 thomas 
146 3efd8e31 2022-10-23 thomas 	/* Request a list of references. */
147 3efd8e31 2022-10-23 thomas 	GOTD_IMSG_LIST_REFS,
148 3efd8e31 2022-10-23 thomas 	GOTD_IMSG_LIST_REFS_INTERNAL,
149 3efd8e31 2022-10-23 thomas 
150 3efd8e31 2022-10-23 thomas 	/* References. */
151 3efd8e31 2022-10-23 thomas 	GOTD_IMSG_REFLIST,
152 3efd8e31 2022-10-23 thomas 	GOTD_IMSG_REF,
153 3efd8e31 2022-10-23 thomas 	GOTD_IMSG_SYMREF,
154 3efd8e31 2022-10-23 thomas 
155 3efd8e31 2022-10-23 thomas 	/* Git protocol capabilities. */
156 3efd8e31 2022-10-23 thomas 	GOTD_IMSG_CAPABILITIES,
157 3efd8e31 2022-10-23 thomas 	GOTD_IMSG_CAPABILITY,
158 3efd8e31 2022-10-23 thomas 
159 3efd8e31 2022-10-23 thomas 	/* Git protocol chatter. */
160 3efd8e31 2022-10-23 thomas 	GOTD_IMSG_WANT,		/* The client wants an object. */
161 3efd8e31 2022-10-23 thomas 	GOTD_IMSG_HAVE,		/* The client has an object. */
162 3efd8e31 2022-10-23 thomas 	GOTD_IMSG_ACK,		/* The server has an object or a reference. */
163 3efd8e31 2022-10-23 thomas 	GOTD_IMSG_NAK,		/* The server does not have an object/ref. */
164 3efd8e31 2022-10-23 thomas 	GOTD_IMSG_REF_UPDATE,	/* The client wants to update a reference. */
165 3efd8e31 2022-10-23 thomas 	GOTD_IMSG_REF_DELETE,	/* The client wants to delete a reference. */
166 3efd8e31 2022-10-23 thomas 	GOTD_IMSG_FLUSH,	/* The client sent a flush packet. */
167 3efd8e31 2022-10-23 thomas 	GOTD_IMSG_DONE,		/* The client is done chatting. */
168 3efd8e31 2022-10-23 thomas 
169 3efd8e31 2022-10-23 thomas 	/* Sending or receiving a pack file. */
170 3efd8e31 2022-10-23 thomas 	GOTD_IMSG_SEND_PACKFILE, /* The server is sending a pack file. */
171 3efd8e31 2022-10-23 thomas 	GOTD_IMSG_RECV_PACKFILE, /* The server is receiving a pack file. */
172 3efd8e31 2022-10-23 thomas 	GOTD_IMSG_PACKIDX_FILE,  /* Temporary file handle for new pack index. */
173 3efd8e31 2022-10-23 thomas 	GOTD_IMSG_PACKFILE_PIPE, /* Pipe to send/receive a pack file stream. */
174 3efd8e31 2022-10-23 thomas 	GOTD_IMSG_PACKFILE_PROGRESS, /* Progress reporting. */
175 3efd8e31 2022-10-23 thomas 	GOTD_IMSG_PACKFILE_READY, /* Pack file is ready to be sent. */
176 3efd8e31 2022-10-23 thomas 	GOTD_IMSG_PACKFILE_STATUS, /* Received pack success/failure status. */
177 3efd8e31 2022-10-23 thomas 	GOTD_IMSG_PACKFILE_INSTALL, /* Received pack file can be installed. */
178 3efd8e31 2022-10-23 thomas 	GOTD_IMSG_PACKFILE_DONE, /* Pack file has been sent/received. */
179 3efd8e31 2022-10-23 thomas 
180 3efd8e31 2022-10-23 thomas 	/* Reference updates. */
181 3efd8e31 2022-10-23 thomas 	GOTD_IMSG_REF_UPDATES_START, /* Ref updates starting. */
182 3efd8e31 2022-10-23 thomas 	GOTD_IMSG_REF_UPDATE_OK, /* Update went OK. */
183 3efd8e31 2022-10-23 thomas 	GOTD_IMSG_REF_UPDATE_NG, /* Update was not good. */
184 3efd8e31 2022-10-23 thomas 	GOTD_IMSG_REFS_UPDATED, /* The server proccessed all ref updates. */
185 3efd8e31 2022-10-23 thomas 
186 2b3d32a1 2022-12-30 thomas 	/* Client connections. */
187 3efd8e31 2022-10-23 thomas 	GOTD_IMSG_DISCONNECT,
188 2b3d32a1 2022-12-30 thomas 	GOTD_IMSG_CONNECT,
189 85b37c72 2022-12-30 thomas 
190 85b37c72 2022-12-30 thomas 	/* Child process management. */
191 85b37c72 2022-12-30 thomas 	GOTD_IMSG_REPO_CHILD_READY,
192 c669c489 2022-12-30 thomas 
193 c669c489 2022-12-30 thomas 	/* Auth child process. */
194 c669c489 2022-12-30 thomas 	GOTD_IMSG_AUTHENTICATE,
195 c669c489 2022-12-30 thomas 	GOTD_IMSG_ACCESS_GRANTED,
196 3efd8e31 2022-10-23 thomas };
197 3efd8e31 2022-10-23 thomas 
198 3efd8e31 2022-10-23 thomas /* Structure for GOTD_IMSG_ERROR. */
199 3efd8e31 2022-10-23 thomas struct gotd_imsg_error {
200 3efd8e31 2022-10-23 thomas 	int code; /* an error code from got_error.h */
201 3efd8e31 2022-10-23 thomas 	int errno_code; /* in case code equals GOT_ERR_ERRNO */
202 3efd8e31 2022-10-23 thomas 	uint32_t client_id;
203 3efd8e31 2022-10-23 thomas 	char msg[GOT_ERR_MAX_MSG_SIZE];
204 3efd8e31 2022-10-23 thomas } __attribute__((__packed__));
205 3efd8e31 2022-10-23 thomas 
206 c902213d 2022-10-29 thomas /* Structure for GOTD_IMSG_INFO. */
207 c902213d 2022-10-29 thomas struct gotd_imsg_info {
208 c902213d 2022-10-29 thomas 	pid_t pid;
209 c902213d 2022-10-29 thomas 	int verbosity;
210 c902213d 2022-10-29 thomas 	int nrepos;
211 c902213d 2022-10-29 thomas 	int nclients;
212 c902213d 2022-10-29 thomas 
213 c902213d 2022-10-29 thomas 	/* Followed by nrepos GOTD_IMSG_INFO_REPO messages. */
214 c902213d 2022-10-29 thomas 	/* Followed by nclients GOTD_IMSG_INFO_CLIENT messages. */
215 c902213d 2022-10-29 thomas };
216 c902213d 2022-10-29 thomas 
217 c902213d 2022-10-29 thomas /* Structure for GOTD_IMSG_INFO_REPO. */
218 c902213d 2022-10-29 thomas struct gotd_imsg_info_repo {
219 c902213d 2022-10-29 thomas 	char repo_name[NAME_MAX];
220 c902213d 2022-10-29 thomas 	char repo_path[PATH_MAX];
221 c902213d 2022-10-29 thomas };
222 c902213d 2022-10-29 thomas 
223 c902213d 2022-10-29 thomas /* Structure for GOTD_IMSG_INFO_CLIENT */
224 c902213d 2022-10-29 thomas struct gotd_imsg_info_client {
225 c902213d 2022-10-29 thomas 	uid_t euid;
226 c902213d 2022-10-29 thomas 	gid_t egid;
227 c902213d 2022-10-29 thomas 	char repo_name[NAME_MAX];
228 c902213d 2022-10-29 thomas 	int is_writing;
229 c902213d 2022-10-29 thomas 	enum gotd_client_state state;
230 c902213d 2022-10-29 thomas 	size_t ncapabilities;
231 c902213d 2022-10-29 thomas 
232 c902213d 2022-10-29 thomas 	/* Followed by ncapabilities GOTD_IMSG_CAPABILITY. */
233 c902213d 2022-10-29 thomas };
234 c902213d 2022-10-29 thomas 
235 3efd8e31 2022-10-23 thomas /* Structure for GOTD_IMSG_LIST_REFS. */
236 3efd8e31 2022-10-23 thomas struct gotd_imsg_list_refs {
237 3efd8e31 2022-10-23 thomas 	char repo_name[NAME_MAX];
238 3efd8e31 2022-10-23 thomas 	int client_is_reading; /* 1 if reading, 0 if writing */
239 3efd8e31 2022-10-23 thomas };
240 3efd8e31 2022-10-23 thomas 
241 3efd8e31 2022-10-23 thomas /* Structure for GOTD_IMSG_LIST_REFS_INTERNAL. */
242 3efd8e31 2022-10-23 thomas struct gotd_imsg_list_refs_internal {
243 3efd8e31 2022-10-23 thomas 	uint32_t client_id;
244 3efd8e31 2022-10-23 thomas };
245 3efd8e31 2022-10-23 thomas 
246 3efd8e31 2022-10-23 thomas /* Structure for GOTD_IMSG_REFLIST. */
247 3efd8e31 2022-10-23 thomas struct gotd_imsg_reflist {
248 3efd8e31 2022-10-23 thomas 	size_t nrefs;
249 3efd8e31 2022-10-23 thomas 
250 3efd8e31 2022-10-23 thomas 	/* Followed by nrefs times of gotd_imsg_ref/gotd_imsg_symref data. */
251 3efd8e31 2022-10-23 thomas } __attribute__((__packed__));
252 3efd8e31 2022-10-23 thomas 
253 3efd8e31 2022-10-23 thomas /* Structure for GOTD_IMSG_REF data. */
254 3efd8e31 2022-10-23 thomas struct gotd_imsg_ref {
255 3efd8e31 2022-10-23 thomas 	uint8_t id[SHA1_DIGEST_LENGTH];
256 3efd8e31 2022-10-23 thomas 	size_t name_len;
257 3efd8e31 2022-10-23 thomas 	/* Followed by name_len data bytes. */
258 3efd8e31 2022-10-23 thomas } __attribute__((__packed__));
259 3efd8e31 2022-10-23 thomas 
260 3efd8e31 2022-10-23 thomas /* Structure for GOTD_IMSG_SYMREF data. */
261 3efd8e31 2022-10-23 thomas struct gotd_imsg_symref {
262 3efd8e31 2022-10-23 thomas 	size_t name_len;
263 3efd8e31 2022-10-23 thomas 	size_t target_len;
264 3efd8e31 2022-10-23 thomas 	uint8_t target_id[SHA1_DIGEST_LENGTH];
265 3efd8e31 2022-10-23 thomas 
266 3efd8e31 2022-10-23 thomas 	/*
267 3efd8e31 2022-10-23 thomas 	 * Followed by name_len + target_len data bytes.
268 3efd8e31 2022-10-23 thomas 	 */
269 3efd8e31 2022-10-23 thomas } __attribute__((__packed__));
270 3efd8e31 2022-10-23 thomas 
271 3efd8e31 2022-10-23 thomas /* Structure for GOTD_IMSG_CAPABILITIES data. */
272 3efd8e31 2022-10-23 thomas struct gotd_imsg_capabilities {
273 3efd8e31 2022-10-23 thomas 	size_t ncapabilities;
274 3efd8e31 2022-10-23 thomas 
275 3efd8e31 2022-10-23 thomas 	/*
276 3efd8e31 2022-10-23 thomas 	 * Followed by ncapabilities * GOTD_IMSG_CAPABILITY.
277 3efd8e31 2022-10-23 thomas 	 */
278 3efd8e31 2022-10-23 thomas } __attribute__((__packed__));
279 3efd8e31 2022-10-23 thomas 
280 3efd8e31 2022-10-23 thomas /* Structure for GOTD_IMSG_CAPABILITY data. */
281 3efd8e31 2022-10-23 thomas struct gotd_imsg_capability {
282 3efd8e31 2022-10-23 thomas 	size_t key_len;
283 3efd8e31 2022-10-23 thomas 	size_t value_len;
284 3efd8e31 2022-10-23 thomas 
285 3efd8e31 2022-10-23 thomas 	/*
286 3efd8e31 2022-10-23 thomas 	 * Followed by key_len + value_len data bytes.
287 3efd8e31 2022-10-23 thomas 	 */
288 3efd8e31 2022-10-23 thomas } __attribute__((__packed__));
289 3efd8e31 2022-10-23 thomas 
290 3efd8e31 2022-10-23 thomas /* Structure for GOTD_IMSG_WANT data. */
291 3efd8e31 2022-10-23 thomas struct gotd_imsg_want {
292 3efd8e31 2022-10-23 thomas 	uint8_t object_id[SHA1_DIGEST_LENGTH];
293 3efd8e31 2022-10-23 thomas 	uint32_t client_id;
294 3efd8e31 2022-10-23 thomas } __attribute__((__packed__));
295 3efd8e31 2022-10-23 thomas 
296 3efd8e31 2022-10-23 thomas /* Structure for GOTD_IMSG_HAVE data. */
297 3efd8e31 2022-10-23 thomas struct gotd_imsg_have {
298 3efd8e31 2022-10-23 thomas 	uint8_t object_id[SHA1_DIGEST_LENGTH];
299 3efd8e31 2022-10-23 thomas 	uint32_t client_id;
300 3efd8e31 2022-10-23 thomas } __attribute__((__packed__));
301 3efd8e31 2022-10-23 thomas 
302 3efd8e31 2022-10-23 thomas /* Structure for GOTD_IMSG_ACK data. */
303 3efd8e31 2022-10-23 thomas struct gotd_imsg_ack {
304 3efd8e31 2022-10-23 thomas 	uint8_t object_id[SHA1_DIGEST_LENGTH];
305 3efd8e31 2022-10-23 thomas 	uint32_t client_id;
306 3efd8e31 2022-10-23 thomas } __attribute__((__packed__));
307 3efd8e31 2022-10-23 thomas 
308 3efd8e31 2022-10-23 thomas /* Structure for GOTD_IMSG_NAK data. */
309 3efd8e31 2022-10-23 thomas struct gotd_imsg_nak {
310 3efd8e31 2022-10-23 thomas 	uint8_t object_id[SHA1_DIGEST_LENGTH];
311 3efd8e31 2022-10-23 thomas 	uint32_t client_id;
312 3efd8e31 2022-10-23 thomas } __attribute__((__packed__));
313 3efd8e31 2022-10-23 thomas 
314 3efd8e31 2022-10-23 thomas /* Structure for GOTD_IMSG_PACKFILE_STATUS data. */
315 3efd8e31 2022-10-23 thomas struct gotd_imsg_packfile_status {
316 3efd8e31 2022-10-23 thomas 	size_t reason_len;
317 3efd8e31 2022-10-23 thomas 
318 3efd8e31 2022-10-23 thomas 	/* Followed by reason_len data bytes. */
319 3efd8e31 2022-10-23 thomas } __attribute__((__packed__));
320 3efd8e31 2022-10-23 thomas 
321 3efd8e31 2022-10-23 thomas 
322 3efd8e31 2022-10-23 thomas /* Structure for GOTD_IMSG_REF_UPDATE data. */
323 3efd8e31 2022-10-23 thomas struct gotd_imsg_ref_update {
324 3efd8e31 2022-10-23 thomas 	uint8_t old_id[SHA1_DIGEST_LENGTH];
325 3efd8e31 2022-10-23 thomas 	uint8_t new_id[SHA1_DIGEST_LENGTH];
326 3efd8e31 2022-10-23 thomas 	int ref_is_new;
327 3efd8e31 2022-10-23 thomas 	uint32_t client_id;
328 3efd8e31 2022-10-23 thomas 	size_t name_len;
329 3efd8e31 2022-10-23 thomas 
330 3efd8e31 2022-10-23 thomas 	/* Followed by name_len data bytes. */
331 3efd8e31 2022-10-23 thomas } __attribute__((__packed__));
332 3efd8e31 2022-10-23 thomas 
333 3efd8e31 2022-10-23 thomas /* Structure for GOTD_IMSG_REF_UPDATES_START data. */
334 3efd8e31 2022-10-23 thomas struct gotd_imsg_ref_updates_start {
335 3efd8e31 2022-10-23 thomas 	int nref_updates;
336 3efd8e31 2022-10-23 thomas 	uint32_t client_id;
337 3efd8e31 2022-10-23 thomas 
338 3efd8e31 2022-10-23 thomas 	/* Followed by nref_updates GOT_IMSG_REF_UPDATE_OK/NG messages. */
339 3efd8e31 2022-10-23 thomas };
340 3efd8e31 2022-10-23 thomas 
341 3efd8e31 2022-10-23 thomas /* Structure for GOTD_IMSG_REF_UPDATE_OK data. */
342 3efd8e31 2022-10-23 thomas struct gotd_imsg_ref_update_ok {
343 3efd8e31 2022-10-23 thomas 	uint8_t old_id[SHA1_DIGEST_LENGTH];
344 3efd8e31 2022-10-23 thomas 	uint8_t new_id[SHA1_DIGEST_LENGTH];
345 3efd8e31 2022-10-23 thomas 	int ref_is_new;
346 3efd8e31 2022-10-23 thomas 	uint32_t client_id;
347 3efd8e31 2022-10-23 thomas 	size_t name_len;
348 3efd8e31 2022-10-23 thomas 
349 3efd8e31 2022-10-23 thomas 	/* Followed by name_len data bytes. */
350 3efd8e31 2022-10-23 thomas } __attribute__((__packed__));
351 3efd8e31 2022-10-23 thomas 
352 3efd8e31 2022-10-23 thomas /* Structure for GOTD_IMSG_REF_UPDATE_NG data. */
353 3efd8e31 2022-10-23 thomas struct gotd_imsg_ref_update_ng {
354 3efd8e31 2022-10-23 thomas 	uint8_t old_id[SHA1_DIGEST_LENGTH];
355 3efd8e31 2022-10-23 thomas 	uint8_t new_id[SHA1_DIGEST_LENGTH];
356 3efd8e31 2022-10-23 thomas 	uint32_t client_id;
357 3efd8e31 2022-10-23 thomas 	size_t name_len;
358 3efd8e31 2022-10-23 thomas 	size_t reason_len;
359 3efd8e31 2022-10-23 thomas 
360 3efd8e31 2022-10-23 thomas 	/* Followed by name_len + reason_len data bytes. */
361 3efd8e31 2022-10-23 thomas } __attribute__((__packed__));
362 3efd8e31 2022-10-23 thomas 
363 3efd8e31 2022-10-23 thomas /* Structure for GOTD_IMSG_SEND_PACKFILE data. */
364 3efd8e31 2022-10-23 thomas struct gotd_imsg_send_packfile {
365 3efd8e31 2022-10-23 thomas 	uint32_t client_id;
366 3efd8e31 2022-10-23 thomas 	int report_progress;
367 3efd8e31 2022-10-23 thomas 
368 3efd8e31 2022-10-23 thomas 	/* delta cache file is sent as a file descriptor */
369 3efd8e31 2022-10-23 thomas 
370 3efd8e31 2022-10-23 thomas 	/* followed by two GOTD_IMSG_PACKFILE_PIPE messages */
371 3efd8e31 2022-10-23 thomas };
372 3efd8e31 2022-10-23 thomas 
373 3efd8e31 2022-10-23 thomas /* Structure for GOTD_IMSG_RECV_PACKFILE data. */
374 3efd8e31 2022-10-23 thomas struct gotd_imsg_recv_packfile {
375 3efd8e31 2022-10-23 thomas 	uint32_t client_id;
376 3efd8e31 2022-10-23 thomas 	int report_status;
377 3efd8e31 2022-10-23 thomas 
378 3efd8e31 2022-10-23 thomas 	/* pack destination temp file is sent as a file descriptor */
379 3efd8e31 2022-10-23 thomas };
380 3efd8e31 2022-10-23 thomas 
381 3efd8e31 2022-10-23 thomas /* Structure for GOTD_IMSG_PACKFILE_PIPE data. */
382 3efd8e31 2022-10-23 thomas struct gotd_imsg_packfile_pipe {
383 3efd8e31 2022-10-23 thomas 	uint32_t client_id;
384 3efd8e31 2022-10-23 thomas };
385 3efd8e31 2022-10-23 thomas 
386 3efd8e31 2022-10-23 thomas /* Structure for GOTD_IMSG_PACKIDX_FILE data. */
387 3efd8e31 2022-10-23 thomas struct gotd_imsg_packidx_file {
388 3efd8e31 2022-10-23 thomas 	uint32_t client_id;
389 3efd8e31 2022-10-23 thomas };
390 3efd8e31 2022-10-23 thomas 
391 3efd8e31 2022-10-23 thomas 
392 3efd8e31 2022-10-23 thomas /*
393 3efd8e31 2022-10-23 thomas  * Structure for GOTD_IMSG_PACKFILE_PROGRESS and
394 3efd8e31 2022-10-23 thomas  * GOTD_IMSG_PACKFILE_READY data.
395 3efd8e31 2022-10-23 thomas  */
396 3efd8e31 2022-10-23 thomas struct gotd_imsg_packfile_progress {
397 3efd8e31 2022-10-23 thomas 	uint32_t client_id;
398 3efd8e31 2022-10-23 thomas 	int ncolored;
399 3efd8e31 2022-10-23 thomas 	int nfound;
400 3efd8e31 2022-10-23 thomas 	int ntrees;
401 3efd8e31 2022-10-23 thomas 	off_t packfile_size;
402 3efd8e31 2022-10-23 thomas 	int ncommits;
403 3efd8e31 2022-10-23 thomas 	int nobj_total;
404 3efd8e31 2022-10-23 thomas 	int nobj_deltify;
405 3efd8e31 2022-10-23 thomas 	int nobj_written;
406 3efd8e31 2022-10-23 thomas };
407 3efd8e31 2022-10-23 thomas 
408 3efd8e31 2022-10-23 thomas /* Structure for GOTD_IMSG_PACKFILE_INSTALL. */
409 3efd8e31 2022-10-23 thomas struct gotd_imsg_packfile_install {
410 3efd8e31 2022-10-23 thomas 	uint32_t client_id;
411 3efd8e31 2022-10-23 thomas 	uint8_t pack_sha1[SHA1_DIGEST_LENGTH];
412 3efd8e31 2022-10-23 thomas };
413 3efd8e31 2022-10-23 thomas 
414 3efd8e31 2022-10-23 thomas /* Structure for GOTD_IMSG_PACKFILE_DONE data. */
415 3efd8e31 2022-10-23 thomas struct gotd_imsg_packfile_done {
416 3efd8e31 2022-10-23 thomas 	uint32_t client_id;
417 3efd8e31 2022-10-23 thomas };
418 3efd8e31 2022-10-23 thomas 
419 3efd8e31 2022-10-23 thomas /* Structure for GOTD_IMSG_DISCONNECT data. */
420 3efd8e31 2022-10-23 thomas struct gotd_imsg_disconnect {
421 3efd8e31 2022-10-23 thomas 	uint32_t client_id;
422 3efd8e31 2022-10-23 thomas };
423 3efd8e31 2022-10-23 thomas 
424 2b3d32a1 2022-12-30 thomas /* Structure for GOTD_IMSG_CONNECT. */
425 2b3d32a1 2022-12-30 thomas struct gotd_imsg_connect {
426 2b3d32a1 2022-12-30 thomas 	uint32_t client_id;
427 0bcde4c8 2022-12-30 thomas 	uid_t euid;
428 0bcde4c8 2022-12-30 thomas 	gid_t egid;
429 2b3d32a1 2022-12-30 thomas };
430 2b3d32a1 2022-12-30 thomas 
431 c669c489 2022-12-30 thomas /* Structure for GOTD_IMSG_AUTHENTICATE. */
432 c669c489 2022-12-30 thomas struct gotd_imsg_auth {
433 c669c489 2022-12-30 thomas 	uid_t euid;
434 c669c489 2022-12-30 thomas 	gid_t egid;
435 c669c489 2022-12-30 thomas 	int required_auth;
436 c669c489 2022-12-30 thomas 	uint32_t client_id;
437 c669c489 2022-12-30 thomas };
438 c669c489 2022-12-30 thomas 
439 3efd8e31 2022-10-23 thomas int parse_config(const char *, enum gotd_procid, struct gotd *);
440 3efd8e31 2022-10-23 thomas 
441 3efd8e31 2022-10-23 thomas /* imsg.c */
442 3efd8e31 2022-10-23 thomas const struct got_error *gotd_imsg_flush(struct imsgbuf *);
443 3efd8e31 2022-10-23 thomas const struct got_error *gotd_imsg_recv(struct imsg *, struct imsgbuf *, size_t);
444 3efd8e31 2022-10-23 thomas const struct got_error *gotd_imsg_poll_recv(struct imsg *, struct imsgbuf *,
445 3efd8e31 2022-10-23 thomas     size_t);
446 3efd8e31 2022-10-23 thomas const struct got_error *gotd_imsg_recv_error(uint32_t *client_id,
447 3efd8e31 2022-10-23 thomas     struct imsg *imsg);
448 3efd8e31 2022-10-23 thomas int gotd_imsg_send_error(struct imsgbuf *ibuf, uint32_t, uint32_t,
449 3efd8e31 2022-10-23 thomas     const struct got_error *);
450 3efd8e31 2022-10-23 thomas int gotd_imsg_send_error_event(struct gotd_imsgev *, uint32_t, uint32_t,
451 3efd8e31 2022-10-23 thomas     const struct got_error *);
452 3efd8e31 2022-10-23 thomas void gotd_imsg_event_add(struct gotd_imsgev *);
453 3efd8e31 2022-10-23 thomas int gotd_imsg_compose_event(struct gotd_imsgev *, uint16_t, uint32_t, int,
454 3efd8e31 2022-10-23 thomas     void *, uint16_t);
455 3efd8e31 2022-10-23 thomas int gotd_imsg_forward(struct gotd_imsgev *, struct imsg *, int);
456 3efd8e31 2022-10-23 thomas 
457 3efd8e31 2022-10-23 thomas void gotd_imsg_send_ack(struct got_object_id *, struct imsgbuf *,
458 3efd8e31 2022-10-23 thomas     uint32_t, pid_t);
459 3efd8e31 2022-10-23 thomas void gotd_imsg_send_nak(struct got_object_id *, struct imsgbuf *,
460 3efd8e31 2022-10-23 thomas     uint32_t, pid_t);