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