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