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_UNIX_GROUP	"_gotsh"
 21 13b2bc37 2022-10-23 stsp #define GOTD_USER	"_gotd"
 22 13b2bc37 2022-10-23 stsp #define GOTD_CONF_PATH	"/etc/gotd.conf"
 23 d93ecf7d 2022-12-14 stsp #define GOTD_EMPTY_PATH	"/var/empty"
 24 13b2bc37 2022-10-23 stsp 
 25 13b2bc37 2022-10-23 stsp #define GOTD_MAXCLIENTS		1024
 26 7a0564e3 2022-12-30 stsp #define GOTD_MAX_CONN_PER_UID	4
 27 13b2bc37 2022-10-23 stsp #define GOTD_FD_RESERVE		5
 28 13b2bc37 2022-10-23 stsp #define GOTD_FD_NEEDED		6
 29 8c6fc146 2022-11-17 stsp #define GOTD_FILENO_MSG_PIPE	3
 30 13b2bc37 2022-10-23 stsp 
 31 13b2bc37 2022-10-23 stsp /* Client hash tables need some extra room. */
 32 13b2bc37 2022-10-23 stsp #define GOTD_CLIENT_TABLE_SIZE (GOTD_MAXCLIENTS * 4)
 33 13b2bc37 2022-10-23 stsp 
 34 13b2bc37 2022-10-23 stsp enum gotd_procid {
 35 13b2bc37 2022-10-23 stsp 	PROC_GOTD	= 0,
 36 d93ecf7d 2022-12-14 stsp 	PROC_LISTEN,
 37 5e25db14 2022-12-29 stsp 	PROC_AUTH,
 38 13b2bc37 2022-10-23 stsp 	PROC_REPO_READ,
 39 13b2bc37 2022-10-23 stsp 	PROC_REPO_WRITE,
 40 13b2bc37 2022-10-23 stsp 	PROC_MAX,
 41 13b2bc37 2022-10-23 stsp };
 42 13b2bc37 2022-10-23 stsp 
 43 13b2bc37 2022-10-23 stsp struct gotd_imsgev {
 44 13b2bc37 2022-10-23 stsp 	struct imsgbuf	 ibuf;
 45 13b2bc37 2022-10-23 stsp 	void		(*handler)(int, short, void *);
 46 13b2bc37 2022-10-23 stsp 	void		*handler_arg;
 47 13b2bc37 2022-10-23 stsp 	struct event	 ev;
 48 13b2bc37 2022-10-23 stsp 	short		 events;
 49 13b2bc37 2022-10-23 stsp };
 50 13b2bc37 2022-10-23 stsp 
 51 13b2bc37 2022-10-23 stsp struct gotd_child_proc {
 52 13b2bc37 2022-10-23 stsp 	pid_t pid;
 53 13b2bc37 2022-10-23 stsp 	enum gotd_procid type;
 54 13b2bc37 2022-10-23 stsp 	char repo_name[NAME_MAX];
 55 eec68231 2022-12-14 stsp 	char repo_path[PATH_MAX];
 56 13b2bc37 2022-10-23 stsp 	int pipe[2];
 57 13b2bc37 2022-10-23 stsp 	struct gotd_imsgev iev;
 58 13b2bc37 2022-10-23 stsp 	size_t nhelpers;
 59 0ccf3acb 2022-11-16 stsp };
 60 0ccf3acb 2022-11-16 stsp 
 61 0ccf3acb 2022-11-16 stsp enum gotd_access {
 62 0ccf3acb 2022-11-16 stsp 	GOTD_ACCESS_PERMITTED = 1,
 63 0ccf3acb 2022-11-16 stsp 	GOTD_ACCESS_DENIED
 64 0ccf3acb 2022-11-16 stsp };
 65 0ccf3acb 2022-11-16 stsp 
 66 0ccf3acb 2022-11-16 stsp struct gotd_access_rule {
 67 0ccf3acb 2022-11-16 stsp 	STAILQ_ENTRY(gotd_access_rule) entry;
 68 0ccf3acb 2022-11-16 stsp 
 69 0ccf3acb 2022-11-16 stsp 	enum gotd_access access;
 70 0ccf3acb 2022-11-16 stsp 
 71 0ccf3acb 2022-11-16 stsp 	int authorization;
 72 0ccf3acb 2022-11-16 stsp #define GOTD_AUTH_READ		0x1
 73 0ccf3acb 2022-11-16 stsp #define GOTD_AUTH_WRITE		0x2
 74 0ccf3acb 2022-11-16 stsp 
 75 0ccf3acb 2022-11-16 stsp 	char *identifier;
 76 13b2bc37 2022-10-23 stsp };
 77 0ccf3acb 2022-11-16 stsp STAILQ_HEAD(gotd_access_rule_list, gotd_access_rule);
 78 13b2bc37 2022-10-23 stsp 
 79 13b2bc37 2022-10-23 stsp struct gotd_repo {
 80 13b2bc37 2022-10-23 stsp 	TAILQ_ENTRY(gotd_repo)	 entry;
 81 13b2bc37 2022-10-23 stsp 
 82 13b2bc37 2022-10-23 stsp 	char name[NAME_MAX];
 83 13b2bc37 2022-10-23 stsp 	char path[PATH_MAX];
 84 0ccf3acb 2022-11-16 stsp 
 85 0ccf3acb 2022-11-16 stsp 	struct gotd_access_rule_list rules;
 86 13b2bc37 2022-10-23 stsp };
 87 13b2bc37 2022-10-23 stsp TAILQ_HEAD(gotd_repolist, gotd_repo);
 88 13b2bc37 2022-10-23 stsp 
 89 13b2bc37 2022-10-23 stsp enum gotd_client_state {
 90 13b2bc37 2022-10-23 stsp 	GOTD_STATE_EXPECT_LIST_REFS,
 91 13b2bc37 2022-10-23 stsp 	GOTD_STATE_EXPECT_CAPABILITIES,
 92 13b2bc37 2022-10-23 stsp 	GOTD_STATE_EXPECT_WANT,
 93 13b2bc37 2022-10-23 stsp 	GOTD_STATE_EXPECT_REF_UPDATE,
 94 13b2bc37 2022-10-23 stsp 	GOTD_STATE_EXPECT_MORE_REF_UPDATES,
 95 13b2bc37 2022-10-23 stsp 	GOTD_STATE_EXPECT_HAVE,
 96 13b2bc37 2022-10-23 stsp 	GOTD_STATE_EXPECT_PACKFILE,
 97 13b2bc37 2022-10-23 stsp 	GOTD_STATE_EXPECT_DONE,
 98 13b2bc37 2022-10-23 stsp 	GOTD_STATE_DONE,
 99 13b2bc37 2022-10-23 stsp };
100 13b2bc37 2022-10-23 stsp 
101 13b2bc37 2022-10-23 stsp struct gotd_client_capability {
102 13b2bc37 2022-10-23 stsp 	char *key;
103 13b2bc37 2022-10-23 stsp 	char *value;
104 13b2bc37 2022-10-23 stsp };
105 13b2bc37 2022-10-23 stsp 
106 13b2bc37 2022-10-23 stsp struct gotd_object_id_array {
107 13b2bc37 2022-10-23 stsp 	struct got_object_id		**ids;
108 13b2bc37 2022-10-23 stsp 	size_t				 nalloc;
109 13b2bc37 2022-10-23 stsp 	size_t				 nids;
110 13b2bc37 2022-10-23 stsp };
111 13b2bc37 2022-10-23 stsp 
112 13b2bc37 2022-10-23 stsp struct gotd {
113 13b2bc37 2022-10-23 stsp 	pid_t pid;
114 13b2bc37 2022-10-23 stsp 	char unix_socket_path[PATH_MAX];
115 13b2bc37 2022-10-23 stsp 	char unix_group_name[32];
116 13b2bc37 2022-10-23 stsp 	char user_name[32];
117 13b2bc37 2022-10-23 stsp 	struct gotd_repolist repos;
118 13b2bc37 2022-10-23 stsp 	int nrepos;
119 b50a2b46 2022-12-29 stsp 	struct gotd_child_proc listen_proc;
120 b50a2b46 2022-12-29 stsp 
121 b50a2b46 2022-12-29 stsp 	char *argv0;
122 b50a2b46 2022-12-29 stsp 	const char *confpath;
123 b50a2b46 2022-12-29 stsp 	int daemonize;
124 13b2bc37 2022-10-23 stsp 	int verbosity;
125 13b2bc37 2022-10-23 stsp };
126 13b2bc37 2022-10-23 stsp 
127 13b2bc37 2022-10-23 stsp enum gotd_imsg_type {
128 13b2bc37 2022-10-23 stsp 	/* An error occured while processing a request. */
129 13b2bc37 2022-10-23 stsp 	GOTD_IMSG_ERROR,
130 13b2bc37 2022-10-23 stsp 
131 f1752522 2022-10-29 stsp 	/* Commands used by gotctl(8). */
132 f1752522 2022-10-29 stsp 	GOTD_IMSG_INFO,
133 f1752522 2022-10-29 stsp 	GOTD_IMSG_INFO_REPO,
134 f1752522 2022-10-29 stsp 	GOTD_IMSG_INFO_CLIENT,
135 f1752522 2022-10-29 stsp 	GOTD_IMSG_STOP,
136 f1752522 2022-10-29 stsp 
137 13b2bc37 2022-10-23 stsp 	/* Request a list of references. */
138 13b2bc37 2022-10-23 stsp 	GOTD_IMSG_LIST_REFS,
139 13b2bc37 2022-10-23 stsp 	GOTD_IMSG_LIST_REFS_INTERNAL,
140 13b2bc37 2022-10-23 stsp 
141 13b2bc37 2022-10-23 stsp 	/* References. */
142 13b2bc37 2022-10-23 stsp 	GOTD_IMSG_REFLIST,
143 13b2bc37 2022-10-23 stsp 	GOTD_IMSG_REF,
144 13b2bc37 2022-10-23 stsp 	GOTD_IMSG_SYMREF,
145 13b2bc37 2022-10-23 stsp 
146 13b2bc37 2022-10-23 stsp 	/* Git protocol capabilities. */
147 13b2bc37 2022-10-23 stsp 	GOTD_IMSG_CAPABILITIES,
148 13b2bc37 2022-10-23 stsp 	GOTD_IMSG_CAPABILITY,
149 13b2bc37 2022-10-23 stsp 
150 13b2bc37 2022-10-23 stsp 	/* Git protocol chatter. */
151 13b2bc37 2022-10-23 stsp 	GOTD_IMSG_WANT,		/* The client wants an object. */
152 13b2bc37 2022-10-23 stsp 	GOTD_IMSG_HAVE,		/* The client has an object. */
153 13b2bc37 2022-10-23 stsp 	GOTD_IMSG_ACK,		/* The server has an object or a reference. */
154 13b2bc37 2022-10-23 stsp 	GOTD_IMSG_NAK,		/* The server does not have an object/ref. */
155 13b2bc37 2022-10-23 stsp 	GOTD_IMSG_REF_UPDATE,	/* The client wants to update a reference. */
156 13b2bc37 2022-10-23 stsp 	GOTD_IMSG_REF_DELETE,	/* The client wants to delete a reference. */
157 13b2bc37 2022-10-23 stsp 	GOTD_IMSG_FLUSH,	/* The client sent a flush packet. */
158 13b2bc37 2022-10-23 stsp 	GOTD_IMSG_DONE,		/* The client is done chatting. */
159 13b2bc37 2022-10-23 stsp 
160 13b2bc37 2022-10-23 stsp 	/* Sending or receiving a pack file. */
161 13b2bc37 2022-10-23 stsp 	GOTD_IMSG_SEND_PACKFILE, /* The server is sending a pack file. */
162 13b2bc37 2022-10-23 stsp 	GOTD_IMSG_RECV_PACKFILE, /* The server is receiving a pack file. */
163 13b2bc37 2022-10-23 stsp 	GOTD_IMSG_PACKIDX_FILE,  /* Temporary file handle for new pack index. */
164 13b2bc37 2022-10-23 stsp 	GOTD_IMSG_PACKFILE_PIPE, /* Pipe to send/receive a pack file stream. */
165 13b2bc37 2022-10-23 stsp 	GOTD_IMSG_PACKFILE_PROGRESS, /* Progress reporting. */
166 13b2bc37 2022-10-23 stsp 	GOTD_IMSG_PACKFILE_READY, /* Pack file is ready to be sent. */
167 13b2bc37 2022-10-23 stsp 	GOTD_IMSG_PACKFILE_STATUS, /* Received pack success/failure status. */
168 13b2bc37 2022-10-23 stsp 	GOTD_IMSG_PACKFILE_INSTALL, /* Received pack file can be installed. */
169 13b2bc37 2022-10-23 stsp 	GOTD_IMSG_PACKFILE_DONE, /* Pack file has been sent/received. */
170 13b2bc37 2022-10-23 stsp 
171 13b2bc37 2022-10-23 stsp 	/* Reference updates. */
172 13b2bc37 2022-10-23 stsp 	GOTD_IMSG_REF_UPDATES_START, /* Ref updates starting. */
173 13b2bc37 2022-10-23 stsp 	GOTD_IMSG_REF_UPDATE_OK, /* Update went OK. */
174 13b2bc37 2022-10-23 stsp 	GOTD_IMSG_REF_UPDATE_NG, /* Update was not good. */
175 13b2bc37 2022-10-23 stsp 	GOTD_IMSG_REFS_UPDATED, /* The server proccessed all ref updates. */
176 13b2bc37 2022-10-23 stsp 
177 d93ecf7d 2022-12-14 stsp 	/* Client connections. */
178 13b2bc37 2022-10-23 stsp 	GOTD_IMSG_DISCONNECT,
179 d93ecf7d 2022-12-14 stsp 	GOTD_IMSG_CONNECT,
180 b50a2b46 2022-12-29 stsp 
181 b50a2b46 2022-12-29 stsp 	/* Child process management. */
182 b50a2b46 2022-12-29 stsp 	GOTD_IMSG_REPO_CHILD_READY,
183 5e25db14 2022-12-29 stsp 
184 5e25db14 2022-12-29 stsp 	/* Auth child process. */
185 5e25db14 2022-12-29 stsp 	GOTD_IMSG_AUTHENTICATE,
186 5e25db14 2022-12-29 stsp 	GOTD_IMSG_ACCESS_GRANTED,
187 13b2bc37 2022-10-23 stsp };
188 13b2bc37 2022-10-23 stsp 
189 13b2bc37 2022-10-23 stsp /* Structure for GOTD_IMSG_ERROR. */
190 13b2bc37 2022-10-23 stsp struct gotd_imsg_error {
191 13b2bc37 2022-10-23 stsp 	int code; /* an error code from got_error.h */
192 13b2bc37 2022-10-23 stsp 	int errno_code; /* in case code equals GOT_ERR_ERRNO */
193 13b2bc37 2022-10-23 stsp 	uint32_t client_id;
194 13b2bc37 2022-10-23 stsp 	char msg[GOT_ERR_MAX_MSG_SIZE];
195 13b2bc37 2022-10-23 stsp } __attribute__((__packed__));
196 13b2bc37 2022-10-23 stsp 
197 f1752522 2022-10-29 stsp /* Structure for GOTD_IMSG_INFO. */
198 f1752522 2022-10-29 stsp struct gotd_imsg_info {
199 f1752522 2022-10-29 stsp 	pid_t pid;
200 f1752522 2022-10-29 stsp 	int verbosity;
201 f1752522 2022-10-29 stsp 	int nrepos;
202 f1752522 2022-10-29 stsp 	int nclients;
203 f1752522 2022-10-29 stsp 
204 f1752522 2022-10-29 stsp 	/* Followed by nrepos GOTD_IMSG_INFO_REPO messages. */
205 f1752522 2022-10-29 stsp 	/* Followed by nclients GOTD_IMSG_INFO_CLIENT messages. */
206 f1752522 2022-10-29 stsp };
207 f1752522 2022-10-29 stsp 
208 f1752522 2022-10-29 stsp /* Structure for GOTD_IMSG_INFO_REPO. */
209 f1752522 2022-10-29 stsp struct gotd_imsg_info_repo {
210 f1752522 2022-10-29 stsp 	char repo_name[NAME_MAX];
211 f1752522 2022-10-29 stsp 	char repo_path[PATH_MAX];
212 f1752522 2022-10-29 stsp };
213 f1752522 2022-10-29 stsp 
214 f1752522 2022-10-29 stsp /* Structure for GOTD_IMSG_INFO_CLIENT */
215 f1752522 2022-10-29 stsp struct gotd_imsg_info_client {
216 f1752522 2022-10-29 stsp 	uid_t euid;
217 f1752522 2022-10-29 stsp 	gid_t egid;
218 f1752522 2022-10-29 stsp 	char repo_name[NAME_MAX];
219 f1752522 2022-10-29 stsp 	int is_writing;
220 f1752522 2022-10-29 stsp 	enum gotd_client_state state;
221 f1752522 2022-10-29 stsp 	size_t ncapabilities;
222 f1752522 2022-10-29 stsp 
223 f1752522 2022-10-29 stsp 	/* Followed by ncapabilities GOTD_IMSG_CAPABILITY. */
224 f1752522 2022-10-29 stsp };
225 f1752522 2022-10-29 stsp 
226 13b2bc37 2022-10-23 stsp /* Structure for GOTD_IMSG_LIST_REFS. */
227 13b2bc37 2022-10-23 stsp struct gotd_imsg_list_refs {
228 13b2bc37 2022-10-23 stsp 	char repo_name[NAME_MAX];
229 13b2bc37 2022-10-23 stsp 	int client_is_reading; /* 1 if reading, 0 if writing */
230 13b2bc37 2022-10-23 stsp };
231 13b2bc37 2022-10-23 stsp 
232 13b2bc37 2022-10-23 stsp /* Structure for GOTD_IMSG_LIST_REFS_INTERNAL. */
233 13b2bc37 2022-10-23 stsp struct gotd_imsg_list_refs_internal {
234 13b2bc37 2022-10-23 stsp 	uint32_t client_id;
235 13b2bc37 2022-10-23 stsp };
236 13b2bc37 2022-10-23 stsp 
237 13b2bc37 2022-10-23 stsp /* Structure for GOTD_IMSG_REFLIST. */
238 13b2bc37 2022-10-23 stsp struct gotd_imsg_reflist {
239 13b2bc37 2022-10-23 stsp 	size_t nrefs;
240 13b2bc37 2022-10-23 stsp 
241 13b2bc37 2022-10-23 stsp 	/* Followed by nrefs times of gotd_imsg_ref/gotd_imsg_symref data. */
242 13b2bc37 2022-10-23 stsp } __attribute__((__packed__));
243 13b2bc37 2022-10-23 stsp 
244 13b2bc37 2022-10-23 stsp /* Structure for GOTD_IMSG_REF data. */
245 13b2bc37 2022-10-23 stsp struct gotd_imsg_ref {
246 13b2bc37 2022-10-23 stsp 	uint8_t id[SHA1_DIGEST_LENGTH];
247 13b2bc37 2022-10-23 stsp 	size_t name_len;
248 13b2bc37 2022-10-23 stsp 	/* Followed by name_len data bytes. */
249 13b2bc37 2022-10-23 stsp } __attribute__((__packed__));
250 13b2bc37 2022-10-23 stsp 
251 13b2bc37 2022-10-23 stsp /* Structure for GOTD_IMSG_SYMREF data. */
252 13b2bc37 2022-10-23 stsp struct gotd_imsg_symref {
253 13b2bc37 2022-10-23 stsp 	size_t name_len;
254 13b2bc37 2022-10-23 stsp 	size_t target_len;
255 13b2bc37 2022-10-23 stsp 	uint8_t target_id[SHA1_DIGEST_LENGTH];
256 13b2bc37 2022-10-23 stsp 
257 13b2bc37 2022-10-23 stsp 	/*
258 13b2bc37 2022-10-23 stsp 	 * Followed by name_len + target_len data bytes.
259 13b2bc37 2022-10-23 stsp 	 */
260 13b2bc37 2022-10-23 stsp } __attribute__((__packed__));
261 13b2bc37 2022-10-23 stsp 
262 13b2bc37 2022-10-23 stsp /* Structure for GOTD_IMSG_CAPABILITIES data. */
263 13b2bc37 2022-10-23 stsp struct gotd_imsg_capabilities {
264 13b2bc37 2022-10-23 stsp 	size_t ncapabilities;
265 13b2bc37 2022-10-23 stsp 
266 13b2bc37 2022-10-23 stsp 	/*
267 13b2bc37 2022-10-23 stsp 	 * Followed by ncapabilities * GOTD_IMSG_CAPABILITY.
268 13b2bc37 2022-10-23 stsp 	 */
269 13b2bc37 2022-10-23 stsp } __attribute__((__packed__));
270 13b2bc37 2022-10-23 stsp 
271 13b2bc37 2022-10-23 stsp /* Structure for GOTD_IMSG_CAPABILITY data. */
272 13b2bc37 2022-10-23 stsp struct gotd_imsg_capability {
273 13b2bc37 2022-10-23 stsp 	size_t key_len;
274 13b2bc37 2022-10-23 stsp 	size_t value_len;
275 13b2bc37 2022-10-23 stsp 
276 13b2bc37 2022-10-23 stsp 	/*
277 13b2bc37 2022-10-23 stsp 	 * Followed by key_len + value_len data bytes.
278 13b2bc37 2022-10-23 stsp 	 */
279 13b2bc37 2022-10-23 stsp } __attribute__((__packed__));
280 13b2bc37 2022-10-23 stsp 
281 13b2bc37 2022-10-23 stsp /* Structure for GOTD_IMSG_WANT data. */
282 13b2bc37 2022-10-23 stsp struct gotd_imsg_want {
283 13b2bc37 2022-10-23 stsp 	uint8_t object_id[SHA1_DIGEST_LENGTH];
284 13b2bc37 2022-10-23 stsp 	uint32_t client_id;
285 13b2bc37 2022-10-23 stsp } __attribute__((__packed__));
286 13b2bc37 2022-10-23 stsp 
287 13b2bc37 2022-10-23 stsp /* Structure for GOTD_IMSG_HAVE data. */
288 13b2bc37 2022-10-23 stsp struct gotd_imsg_have {
289 13b2bc37 2022-10-23 stsp 	uint8_t object_id[SHA1_DIGEST_LENGTH];
290 13b2bc37 2022-10-23 stsp 	uint32_t client_id;
291 13b2bc37 2022-10-23 stsp } __attribute__((__packed__));
292 13b2bc37 2022-10-23 stsp 
293 13b2bc37 2022-10-23 stsp /* Structure for GOTD_IMSG_ACK data. */
294 13b2bc37 2022-10-23 stsp struct gotd_imsg_ack {
295 13b2bc37 2022-10-23 stsp 	uint8_t object_id[SHA1_DIGEST_LENGTH];
296 13b2bc37 2022-10-23 stsp 	uint32_t client_id;
297 13b2bc37 2022-10-23 stsp } __attribute__((__packed__));
298 13b2bc37 2022-10-23 stsp 
299 13b2bc37 2022-10-23 stsp /* Structure for GOTD_IMSG_NAK data. */
300 13b2bc37 2022-10-23 stsp struct gotd_imsg_nak {
301 13b2bc37 2022-10-23 stsp 	uint8_t object_id[SHA1_DIGEST_LENGTH];
302 13b2bc37 2022-10-23 stsp 	uint32_t client_id;
303 13b2bc37 2022-10-23 stsp } __attribute__((__packed__));
304 13b2bc37 2022-10-23 stsp 
305 13b2bc37 2022-10-23 stsp /* Structure for GOTD_IMSG_PACKFILE_STATUS data. */
306 13b2bc37 2022-10-23 stsp struct gotd_imsg_packfile_status {
307 13b2bc37 2022-10-23 stsp 	size_t reason_len;
308 13b2bc37 2022-10-23 stsp 
309 13b2bc37 2022-10-23 stsp 	/* Followed by reason_len data bytes. */
310 13b2bc37 2022-10-23 stsp } __attribute__((__packed__));
311 13b2bc37 2022-10-23 stsp 
312 13b2bc37 2022-10-23 stsp 
313 13b2bc37 2022-10-23 stsp /* Structure for GOTD_IMSG_REF_UPDATE data. */
314 13b2bc37 2022-10-23 stsp struct gotd_imsg_ref_update {
315 13b2bc37 2022-10-23 stsp 	uint8_t old_id[SHA1_DIGEST_LENGTH];
316 13b2bc37 2022-10-23 stsp 	uint8_t new_id[SHA1_DIGEST_LENGTH];
317 13b2bc37 2022-10-23 stsp 	int ref_is_new;
318 13b2bc37 2022-10-23 stsp 	uint32_t client_id;
319 13b2bc37 2022-10-23 stsp 	size_t name_len;
320 13b2bc37 2022-10-23 stsp 
321 13b2bc37 2022-10-23 stsp 	/* Followed by name_len data bytes. */
322 13b2bc37 2022-10-23 stsp } __attribute__((__packed__));
323 13b2bc37 2022-10-23 stsp 
324 13b2bc37 2022-10-23 stsp /* Structure for GOTD_IMSG_REF_UPDATES_START data. */
325 13b2bc37 2022-10-23 stsp struct gotd_imsg_ref_updates_start {
326 13b2bc37 2022-10-23 stsp 	int nref_updates;
327 13b2bc37 2022-10-23 stsp 	uint32_t client_id;
328 13b2bc37 2022-10-23 stsp 
329 13b2bc37 2022-10-23 stsp 	/* Followed by nref_updates GOT_IMSG_REF_UPDATE_OK/NG messages. */
330 13b2bc37 2022-10-23 stsp };
331 13b2bc37 2022-10-23 stsp 
332 13b2bc37 2022-10-23 stsp /* Structure for GOTD_IMSG_REF_UPDATE_OK data. */
333 13b2bc37 2022-10-23 stsp struct gotd_imsg_ref_update_ok {
334 13b2bc37 2022-10-23 stsp 	uint8_t old_id[SHA1_DIGEST_LENGTH];
335 13b2bc37 2022-10-23 stsp 	uint8_t new_id[SHA1_DIGEST_LENGTH];
336 13b2bc37 2022-10-23 stsp 	int ref_is_new;
337 13b2bc37 2022-10-23 stsp 	uint32_t client_id;
338 13b2bc37 2022-10-23 stsp 	size_t name_len;
339 13b2bc37 2022-10-23 stsp 
340 13b2bc37 2022-10-23 stsp 	/* Followed by name_len data bytes. */
341 13b2bc37 2022-10-23 stsp } __attribute__((__packed__));
342 13b2bc37 2022-10-23 stsp 
343 13b2bc37 2022-10-23 stsp /* Structure for GOTD_IMSG_REF_UPDATE_NG data. */
344 13b2bc37 2022-10-23 stsp struct gotd_imsg_ref_update_ng {
345 13b2bc37 2022-10-23 stsp 	uint8_t old_id[SHA1_DIGEST_LENGTH];
346 13b2bc37 2022-10-23 stsp 	uint8_t new_id[SHA1_DIGEST_LENGTH];
347 13b2bc37 2022-10-23 stsp 	uint32_t client_id;
348 13b2bc37 2022-10-23 stsp 	size_t name_len;
349 13b2bc37 2022-10-23 stsp 	size_t reason_len;
350 13b2bc37 2022-10-23 stsp 
351 13b2bc37 2022-10-23 stsp 	/* Followed by name_len + reason_len data bytes. */
352 13b2bc37 2022-10-23 stsp } __attribute__((__packed__));
353 13b2bc37 2022-10-23 stsp 
354 13b2bc37 2022-10-23 stsp /* Structure for GOTD_IMSG_SEND_PACKFILE data. */
355 13b2bc37 2022-10-23 stsp struct gotd_imsg_send_packfile {
356 13b2bc37 2022-10-23 stsp 	uint32_t client_id;
357 13b2bc37 2022-10-23 stsp 	int report_progress;
358 13b2bc37 2022-10-23 stsp 
359 13b2bc37 2022-10-23 stsp 	/* delta cache file is sent as a file descriptor */
360 13b2bc37 2022-10-23 stsp 
361 13b2bc37 2022-10-23 stsp 	/* followed by two GOTD_IMSG_PACKFILE_PIPE messages */
362 13b2bc37 2022-10-23 stsp };
363 13b2bc37 2022-10-23 stsp 
364 13b2bc37 2022-10-23 stsp /* Structure for GOTD_IMSG_RECV_PACKFILE data. */
365 13b2bc37 2022-10-23 stsp struct gotd_imsg_recv_packfile {
366 13b2bc37 2022-10-23 stsp 	uint32_t client_id;
367 13b2bc37 2022-10-23 stsp 	int report_status;
368 13b2bc37 2022-10-23 stsp 
369 13b2bc37 2022-10-23 stsp 	/* pack destination temp file is sent as a file descriptor */
370 13b2bc37 2022-10-23 stsp };
371 13b2bc37 2022-10-23 stsp 
372 13b2bc37 2022-10-23 stsp /* Structure for GOTD_IMSG_PACKFILE_PIPE data. */
373 13b2bc37 2022-10-23 stsp struct gotd_imsg_packfile_pipe {
374 13b2bc37 2022-10-23 stsp 	uint32_t client_id;
375 13b2bc37 2022-10-23 stsp };
376 13b2bc37 2022-10-23 stsp 
377 13b2bc37 2022-10-23 stsp /* Structure for GOTD_IMSG_PACKIDX_FILE data. */
378 13b2bc37 2022-10-23 stsp struct gotd_imsg_packidx_file {
379 13b2bc37 2022-10-23 stsp 	uint32_t client_id;
380 13b2bc37 2022-10-23 stsp };
381 13b2bc37 2022-10-23 stsp 
382 13b2bc37 2022-10-23 stsp 
383 13b2bc37 2022-10-23 stsp /*
384 13b2bc37 2022-10-23 stsp  * Structure for GOTD_IMSG_PACKFILE_PROGRESS and
385 13b2bc37 2022-10-23 stsp  * GOTD_IMSG_PACKFILE_READY data.
386 13b2bc37 2022-10-23 stsp  */
387 13b2bc37 2022-10-23 stsp struct gotd_imsg_packfile_progress {
388 13b2bc37 2022-10-23 stsp 	uint32_t client_id;
389 13b2bc37 2022-10-23 stsp 	int ncolored;
390 13b2bc37 2022-10-23 stsp 	int nfound;
391 13b2bc37 2022-10-23 stsp 	int ntrees;
392 13b2bc37 2022-10-23 stsp 	off_t packfile_size;
393 13b2bc37 2022-10-23 stsp 	int ncommits;
394 13b2bc37 2022-10-23 stsp 	int nobj_total;
395 13b2bc37 2022-10-23 stsp 	int nobj_deltify;
396 13b2bc37 2022-10-23 stsp 	int nobj_written;
397 13b2bc37 2022-10-23 stsp };
398 13b2bc37 2022-10-23 stsp 
399 13b2bc37 2022-10-23 stsp /* Structure for GOTD_IMSG_PACKFILE_INSTALL. */
400 13b2bc37 2022-10-23 stsp struct gotd_imsg_packfile_install {
401 13b2bc37 2022-10-23 stsp 	uint32_t client_id;
402 13b2bc37 2022-10-23 stsp 	uint8_t pack_sha1[SHA1_DIGEST_LENGTH];
403 13b2bc37 2022-10-23 stsp };
404 13b2bc37 2022-10-23 stsp 
405 13b2bc37 2022-10-23 stsp /* Structure for GOTD_IMSG_PACKFILE_DONE data. */
406 13b2bc37 2022-10-23 stsp struct gotd_imsg_packfile_done {
407 13b2bc37 2022-10-23 stsp 	uint32_t client_id;
408 13b2bc37 2022-10-23 stsp };
409 13b2bc37 2022-10-23 stsp 
410 13b2bc37 2022-10-23 stsp /* Structure for GOTD_IMSG_DISCONNECT data. */
411 13b2bc37 2022-10-23 stsp struct gotd_imsg_disconnect {
412 13b2bc37 2022-10-23 stsp 	uint32_t client_id;
413 13b2bc37 2022-10-23 stsp };
414 13b2bc37 2022-10-23 stsp 
415 d93ecf7d 2022-12-14 stsp /* Structure for GOTD_IMSG_CONNECT. */
416 d93ecf7d 2022-12-14 stsp struct gotd_imsg_connect {
417 d93ecf7d 2022-12-14 stsp 	uint32_t client_id;
418 365cf0f3 2022-12-29 stsp 	uid_t euid;
419 365cf0f3 2022-12-29 stsp 	gid_t egid;
420 d93ecf7d 2022-12-14 stsp };
421 d93ecf7d 2022-12-14 stsp 
422 5e25db14 2022-12-29 stsp /* Structure for GOTD_IMSG_AUTHENTICATE. */
423 5e25db14 2022-12-29 stsp struct gotd_imsg_auth {
424 5e25db14 2022-12-29 stsp 	uid_t euid;
425 5e25db14 2022-12-29 stsp 	gid_t egid;
426 5e25db14 2022-12-29 stsp 	int required_auth;
427 5e25db14 2022-12-29 stsp 	uint32_t client_id;
428 5e25db14 2022-12-29 stsp };
429 5e25db14 2022-12-29 stsp 
430 13b2bc37 2022-10-23 stsp int parse_config(const char *, enum gotd_procid, struct gotd *);
431 13b2bc37 2022-10-23 stsp 
432 13b2bc37 2022-10-23 stsp /* imsg.c */
433 13b2bc37 2022-10-23 stsp const struct got_error *gotd_imsg_flush(struct imsgbuf *);
434 13b2bc37 2022-10-23 stsp const struct got_error *gotd_imsg_recv(struct imsg *, struct imsgbuf *, size_t);
435 13b2bc37 2022-10-23 stsp const struct got_error *gotd_imsg_poll_recv(struct imsg *, struct imsgbuf *,
436 13b2bc37 2022-10-23 stsp     size_t);
437 13b2bc37 2022-10-23 stsp const struct got_error *gotd_imsg_recv_error(uint32_t *client_id,
438 13b2bc37 2022-10-23 stsp     struct imsg *imsg);
439 13b2bc37 2022-10-23 stsp int gotd_imsg_send_error(struct imsgbuf *ibuf, uint32_t, uint32_t,
440 13b2bc37 2022-10-23 stsp     const struct got_error *);
441 13b2bc37 2022-10-23 stsp int gotd_imsg_send_error_event(struct gotd_imsgev *, uint32_t, uint32_t,
442 13b2bc37 2022-10-23 stsp     const struct got_error *);
443 13b2bc37 2022-10-23 stsp void gotd_imsg_event_add(struct gotd_imsgev *);
444 13b2bc37 2022-10-23 stsp int gotd_imsg_compose_event(struct gotd_imsgev *, uint16_t, uint32_t, int,
445 13b2bc37 2022-10-23 stsp     void *, uint16_t);
446 13b2bc37 2022-10-23 stsp int gotd_imsg_forward(struct gotd_imsgev *, struct imsg *, int);
447 13b2bc37 2022-10-23 stsp 
448 13b2bc37 2022-10-23 stsp void gotd_imsg_send_ack(struct got_object_id *, struct imsgbuf *,
449 13b2bc37 2022-10-23 stsp     uint32_t, pid_t);
450 13b2bc37 2022-10-23 stsp void gotd_imsg_send_nak(struct got_object_id *, struct imsgbuf *,
451 13b2bc37 2022-10-23 stsp     uint32_t, pid_t);