1 93658fb9 2020-03-18 stsp /*
  2 93658fb9 2020-03-18 stsp  * Copyright (c) 2018, 2019 Ori Bernstein <ori@openbsd.org>
  3 93658fb9 2020-03-18 stsp  *
  4 93658fb9 2020-03-18 stsp  * Permission to use, copy, modify, and distribute this software for any
  5 93658fb9 2020-03-18 stsp  * purpose with or without fee is hereby granted, provided that the above
  6 93658fb9 2020-03-18 stsp  * copyright notice and this permission notice appear in all copies.
  7 93658fb9 2020-03-18 stsp  *
  8 93658fb9 2020-03-18 stsp  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  9 93658fb9 2020-03-18 stsp  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 10 93658fb9 2020-03-18 stsp  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 11 93658fb9 2020-03-18 stsp  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 12 93658fb9 2020-03-18 stsp  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 13 93658fb9 2020-03-18 stsp  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 14 93658fb9 2020-03-18 stsp  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 15 93658fb9 2020-03-18 stsp  */
 16 93658fb9 2020-03-18 stsp 
 17 93658fb9 2020-03-18 stsp #include <sys/types.h>
 18 93658fb9 2020-03-18 stsp #include <sys/stat.h>
 19 93658fb9 2020-03-18 stsp #include <sys/queue.h>
 20 93658fb9 2020-03-18 stsp #include <sys/uio.h>
 21 93658fb9 2020-03-18 stsp #include <sys/socket.h>
 22 93658fb9 2020-03-18 stsp #include <sys/wait.h>
 23 93658fb9 2020-03-18 stsp #include <sys/syslimits.h>
 24 93658fb9 2020-03-18 stsp #include <sys/resource.h>
 25 93658fb9 2020-03-18 stsp #include <sys/socket.h>
 26 93658fb9 2020-03-18 stsp 
 27 93658fb9 2020-03-18 stsp #include <errno.h>
 28 5cc27ede 2020-03-18 stsp #include <err.h>
 29 93658fb9 2020-03-18 stsp #include <fcntl.h>
 30 93658fb9 2020-03-18 stsp #include <stdio.h>
 31 93658fb9 2020-03-18 stsp #include <stdlib.h>
 32 93658fb9 2020-03-18 stsp #include <string.h>
 33 93658fb9 2020-03-18 stsp #include <stdint.h>
 34 93658fb9 2020-03-18 stsp #include <sha1.h>
 35 93658fb9 2020-03-18 stsp #include <zlib.h>
 36 93658fb9 2020-03-18 stsp #include <ctype.h>
 37 93658fb9 2020-03-18 stsp #include <limits.h>
 38 93658fb9 2020-03-18 stsp #include <imsg.h>
 39 93658fb9 2020-03-18 stsp #include <time.h>
 40 93658fb9 2020-03-18 stsp #include <uuid.h>
 41 93658fb9 2020-03-18 stsp #include <netdb.h>
 42 93658fb9 2020-03-18 stsp #include <netinet/in.h>
 43 93658fb9 2020-03-18 stsp 
 44 93658fb9 2020-03-18 stsp #include "got_error.h"
 45 93658fb9 2020-03-18 stsp #include "got_reference.h"
 46 93658fb9 2020-03-18 stsp #include "got_repository.h"
 47 93658fb9 2020-03-18 stsp #include "got_path.h"
 48 93658fb9 2020-03-18 stsp #include "got_cancel.h"
 49 93658fb9 2020-03-18 stsp #include "got_worktree.h"
 50 93658fb9 2020-03-18 stsp #include "got_object.h"
 51 fe4e1501 2020-03-18 stsp #include "got_opentemp.h"
 52 82ebf666 2020-03-18 stsp #include "got_fetch.h"
 53 93658fb9 2020-03-18 stsp 
 54 93658fb9 2020-03-18 stsp #include "got_lib_delta.h"
 55 93658fb9 2020-03-18 stsp #include "got_lib_inflate.h"
 56 93658fb9 2020-03-18 stsp #include "got_lib_object.h"
 57 93658fb9 2020-03-18 stsp #include "got_lib_object_parse.h"
 58 93658fb9 2020-03-18 stsp #include "got_lib_object_create.h"
 59 93658fb9 2020-03-18 stsp #include "got_lib_pack.h"
 60 93658fb9 2020-03-18 stsp #include "got_lib_sha1.h"
 61 93658fb9 2020-03-18 stsp #include "got_lib_privsep.h"
 62 93658fb9 2020-03-18 stsp #include "got_lib_object_cache.h"
 63 93658fb9 2020-03-18 stsp #include "got_lib_repository.h"
 64 d582f26c 2020-03-18 stsp 
 65 d582f26c 2020-03-18 stsp #ifndef nitems
 66 d582f26c 2020-03-18 stsp #define nitems(_a)	(sizeof((_a)) / sizeof((_a)[0]))
 67 d582f26c 2020-03-18 stsp #endif
 68 93658fb9 2020-03-18 stsp 
 69 68999b92 2020-03-18 stsp #ifndef MIN
 70 68999b92 2020-03-18 stsp #define	MIN(_a,_b) ((_a) < (_b) ? (_a) : (_b))
 71 68999b92 2020-03-18 stsp #endif
 72 68999b92 2020-03-18 stsp 
 73 93658fb9 2020-03-18 stsp static int
 74 93658fb9 2020-03-18 stsp hassuffix(char *base, char *suf)
 75 93658fb9 2020-03-18 stsp {
 76 93658fb9 2020-03-18 stsp 	int nb, ns;
 77 93658fb9 2020-03-18 stsp 
 78 93658fb9 2020-03-18 stsp 	nb = strlen(base);
 79 93658fb9 2020-03-18 stsp 	ns = strlen(suf);
 80 93658fb9 2020-03-18 stsp 	if (ns <= nb && strcmp(base + (nb - ns), suf) == 0)
 81 93658fb9 2020-03-18 stsp 		return 1;
 82 93658fb9 2020-03-18 stsp 	return 0;
 83 93658fb9 2020-03-18 stsp }
 84 93658fb9 2020-03-18 stsp 
 85 5cc27ede 2020-03-18 stsp static const struct got_error *
 86 09838ffc 2020-03-18 stsp dial_ssh(int *fetchfd, const char *host, const char *port, const char *path,
 87 68999b92 2020-03-18 stsp     const char *direction, int verbosity)
 88 93658fb9 2020-03-18 stsp {
 89 5cc27ede 2020-03-18 stsp 	const struct got_error *error = NULL;
 90 93658fb9 2020-03-18 stsp 	int pid, pfd[2];
 91 93658fb9 2020-03-18 stsp 	char cmd[64];
 92 68999b92 2020-03-18 stsp 	char *argv[9];
 93 68999b92 2020-03-18 stsp 	int i = 0;
 94 93658fb9 2020-03-18 stsp 
 95 5cc27ede 2020-03-18 stsp 	*fetchfd = -1;
 96 68999b92 2020-03-18 stsp 
 97 68999b92 2020-03-18 stsp 	argv[0] = GOT_FETCH_PATH_SSH;
 98 68999b92 2020-03-18 stsp 	if (verbosity == -1) {
 99 68999b92 2020-03-18 stsp 		argv[1 + i++] = "-q";
100 68999b92 2020-03-18 stsp 	} else {
101 68999b92 2020-03-18 stsp 		/* ssh(1) allows up to 3 "-v" options. */
102 68999b92 2020-03-18 stsp 		for (i = 0; i < MIN(3, verbosity); i++)
103 68999b92 2020-03-18 stsp 			argv[1 + i] = "-v";
104 68999b92 2020-03-18 stsp 	}
105 68999b92 2020-03-18 stsp 	argv[1 + i] = "--";
106 68999b92 2020-03-18 stsp 	argv[2 + i] = (char *)host;
107 68999b92 2020-03-18 stsp 	argv[3 + i] = (char *)cmd;
108 68999b92 2020-03-18 stsp 	argv[4 + i] = (char *)path;
109 68999b92 2020-03-18 stsp 	argv[5 + i] = NULL;
110 5cc27ede 2020-03-18 stsp 
111 93658fb9 2020-03-18 stsp 	if (pipe(pfd) == -1)
112 5cc27ede 2020-03-18 stsp 		return got_error_from_errno("pipe");
113 5cc27ede 2020-03-18 stsp 
114 93658fb9 2020-03-18 stsp 	pid = fork();
115 5cc27ede 2020-03-18 stsp 	if (pid == -1) {
116 5cc27ede 2020-03-18 stsp 		error = got_error_from_errno("fork");
117 5cc27ede 2020-03-18 stsp 		close(pfd[0]);
118 93658fb9 2020-03-18 stsp 		close(pfd[1]);
119 5cc27ede 2020-03-18 stsp 		return error;
120 5cc27ede 2020-03-18 stsp 	} else if (pid == 0) {
121 5cc27ede 2020-03-18 stsp 		int n;
122 5cc27ede 2020-03-18 stsp 		close(pfd[1]);
123 93658fb9 2020-03-18 stsp 		dup2(pfd[0], 0);
124 93658fb9 2020-03-18 stsp 		dup2(pfd[0], 1);
125 5cc27ede 2020-03-18 stsp 		n = snprintf(cmd, sizeof(cmd), "git-%s-pack", direction);
126 5cc27ede 2020-03-18 stsp 		if (n < 0 || n >= sizeof(cmd))
127 5cc27ede 2020-03-18 stsp 			err(1, "snprintf");
128 68999b92 2020-03-18 stsp 		if (execv(GOT_FETCH_PATH_SSH, argv) == -1)
129 ee448f5f 2020-03-18 stsp 			err(1, "execl");
130 5cc27ede 2020-03-18 stsp 		abort(); /* not reached */
131 5cc27ede 2020-03-18 stsp 	} else {
132 93658fb9 2020-03-18 stsp 		close(pfd[0]);
133 5cc27ede 2020-03-18 stsp 		*fetchfd = pfd[1];
134 5cc27ede 2020-03-18 stsp 		return NULL;
135 93658fb9 2020-03-18 stsp 	}
136 93658fb9 2020-03-18 stsp }
137 93658fb9 2020-03-18 stsp 
138 5cc27ede 2020-03-18 stsp static const struct got_error *
139 09838ffc 2020-03-18 stsp dial_git(int *fetchfd, const char *host, const char *port, const char *path,
140 09838ffc 2020-03-18 stsp     const char *direction)
141 93658fb9 2020-03-18 stsp {
142 5cc27ede 2020-03-18 stsp 	const struct got_error *err = NULL;
143 93658fb9 2020-03-18 stsp 	struct addrinfo hints, *servinfo, *p;
144 5cc27ede 2020-03-18 stsp 	char *cmd = NULL, *pkt = NULL;
145 4312a498 2020-03-18 stsp 	int fd = -1, totlen, r, eaicode;
146 5cc27ede 2020-03-18 stsp 
147 5cc27ede 2020-03-18 stsp 	*fetchfd = -1;
148 93658fb9 2020-03-18 stsp 
149 93658fb9 2020-03-18 stsp 	memset(&hints, 0, sizeof hints);
150 93658fb9 2020-03-18 stsp 	hints.ai_family = AF_UNSPEC;
151 93658fb9 2020-03-18 stsp 	hints.ai_socktype = SOCK_STREAM;
152 5cc27ede 2020-03-18 stsp 	eaicode = getaddrinfo(host, port, &hints, &servinfo);
153 a117fd10 2020-03-18 stsp 	if (eaicode) {
154 a117fd10 2020-03-18 stsp 		char msg[512];
155 a117fd10 2020-03-18 stsp 		snprintf(msg, sizeof(msg), "%s: %s", host,
156 a117fd10 2020-03-18 stsp 		    gai_strerror(eaicode));
157 a117fd10 2020-03-18 stsp 		return got_error_msg(GOT_ERR_ADDRINFO, msg);
158 a117fd10 2020-03-18 stsp 	}
159 93658fb9 2020-03-18 stsp 
160 93658fb9 2020-03-18 stsp 	for (p = servinfo; p != NULL; p = p->ai_next) {
161 93658fb9 2020-03-18 stsp 		if ((fd = socket(p->ai_family, p->ai_socktype,
162 93658fb9 2020-03-18 stsp 		    p->ai_protocol)) == -1)
163 93658fb9 2020-03-18 stsp 			continue;
164 93658fb9 2020-03-18 stsp 		if (connect(fd, p->ai_addr, p->ai_addrlen) == 0)
165 93658fb9 2020-03-18 stsp 			break;
166 5cc27ede 2020-03-18 stsp 		err = got_error_from_errno("connect");
167 93658fb9 2020-03-18 stsp 		close(fd);
168 93658fb9 2020-03-18 stsp 	}
169 93658fb9 2020-03-18 stsp 	if (p == NULL)
170 5cc27ede 2020-03-18 stsp 		goto done;
171 93658fb9 2020-03-18 stsp 
172 4312a498 2020-03-18 stsp 	if (asprintf(&cmd, "git-%s-pack %s", direction, path) == -1) {
173 5cc27ede 2020-03-18 stsp 		err = got_error_from_errno("asprintf");
174 5cc27ede 2020-03-18 stsp 		goto done;
175 5cc27ede 2020-03-18 stsp 	}
176 4312a498 2020-03-18 stsp 	totlen = 4 + strlen(cmd) + 1 + strlen("host=") + strlen(host) + 1;
177 4312a498 2020-03-18 stsp 	if (asprintf(&pkt, "%04x%s", totlen, cmd) == -1) {
178 5cc27ede 2020-03-18 stsp 		err = got_error_from_errno("asprintf");
179 5cc27ede 2020-03-18 stsp 		goto done;
180 5cc27ede 2020-03-18 stsp 	}
181 4312a498 2020-03-18 stsp 	r = write(fd, pkt, strlen(pkt) + 1);
182 4312a498 2020-03-18 stsp 	if (r == -1) {
183 4312a498 2020-03-18 stsp 		err = got_error_from_errno("write");
184 4312a498 2020-03-18 stsp 		goto done;
185 4312a498 2020-03-18 stsp 	}
186 4312a498 2020-03-18 stsp 	if (asprintf(&pkt, "host=%s", host) == -1) {
187 4312a498 2020-03-18 stsp 		err = got_error_from_errno("asprintf");
188 4312a498 2020-03-18 stsp 		goto done;
189 4312a498 2020-03-18 stsp 	}
190 4312a498 2020-03-18 stsp 	r = write(fd, pkt, strlen(pkt) + 1);
191 4312a498 2020-03-18 stsp 	if (r == -1) {
192 5cc27ede 2020-03-18 stsp 		err = got_error_from_errno("write");
193 4312a498 2020-03-18 stsp 		goto done;
194 4312a498 2020-03-18 stsp 	}
195 5cc27ede 2020-03-18 stsp done:
196 93658fb9 2020-03-18 stsp 	free(cmd);
197 93658fb9 2020-03-18 stsp 	free(pkt);
198 5cc27ede 2020-03-18 stsp 	if (err) {
199 5cc27ede 2020-03-18 stsp 		if (fd != -1)
200 5cc27ede 2020-03-18 stsp 			close(fd);
201 5cc27ede 2020-03-18 stsp 	} else
202 5cc27ede 2020-03-18 stsp 		*fetchfd = fd;
203 20eb36d0 2020-03-18 stsp 	return err;
204 20eb36d0 2020-03-18 stsp }
205 20eb36d0 2020-03-18 stsp 
206 20eb36d0 2020-03-18 stsp const struct got_error *
207 20eb36d0 2020-03-18 stsp got_fetch_connect(int *fetchfd, const char *proto, const char *host,
208 68999b92 2020-03-18 stsp     const char *port, const char *server_path, int verbosity)
209 20eb36d0 2020-03-18 stsp {
210 20eb36d0 2020-03-18 stsp 	const struct got_error *err = NULL;
211 20eb36d0 2020-03-18 stsp 
212 20eb36d0 2020-03-18 stsp 	*fetchfd = -1;
213 20eb36d0 2020-03-18 stsp 
214 20eb36d0 2020-03-18 stsp 	if (strcmp(proto, "ssh") == 0 || strcmp(proto, "git+ssh") == 0)
215 68999b92 2020-03-18 stsp 		err = dial_ssh(fetchfd, host, port, server_path, "upload",
216 68999b92 2020-03-18 stsp 		    verbosity);
217 20eb36d0 2020-03-18 stsp 	else if (strcmp(proto, "git") == 0)
218 20eb36d0 2020-03-18 stsp 		err = dial_git(fetchfd, host, port, server_path, "upload");
219 20eb36d0 2020-03-18 stsp 	else if (strcmp(proto, "http") == 0 || strcmp(proto, "git+http") == 0)
220 20eb36d0 2020-03-18 stsp 		err = got_error_path(proto, GOT_ERR_NOT_IMPL);
221 20eb36d0 2020-03-18 stsp 	else
222 20eb36d0 2020-03-18 stsp 		err = got_error_path(proto, GOT_ERR_BAD_PROTO);
223 5cc27ede 2020-03-18 stsp 	return err;
224 93658fb9 2020-03-18 stsp }
225 93658fb9 2020-03-18 stsp 
226 82ebf666 2020-03-18 stsp const struct got_error *
227 82ebf666 2020-03-18 stsp got_fetch_parse_uri(char **proto, char **host, char **port,
228 82ebf666 2020-03-18 stsp     char **server_path, char **repo_name, const char *uri)
229 93658fb9 2020-03-18 stsp {
230 82ebf666 2020-03-18 stsp 	const struct got_error *err = NULL;
231 93658fb9 2020-03-18 stsp 	char *s, *p, *q;
232 93658fb9 2020-03-18 stsp 	int n, hasport;
233 93658fb9 2020-03-18 stsp 
234 82ebf666 2020-03-18 stsp 	*proto = *host = *port = *server_path = *repo_name = NULL;
235 82ebf666 2020-03-18 stsp 
236 93658fb9 2020-03-18 stsp 	p = strstr(uri, "://");
237 93658fb9 2020-03-18 stsp 	if (!p) {
238 82ebf666 2020-03-18 stsp 		return got_error(GOT_ERR_PARSE_URI);
239 93658fb9 2020-03-18 stsp 	}
240 82ebf666 2020-03-18 stsp 	*proto = strndup(uri, p - uri);
241 82ebf666 2020-03-18 stsp 	if (proto == NULL) {
242 82ebf666 2020-03-18 stsp 		err = got_error_from_errno("strndup");
243 82ebf666 2020-03-18 stsp 		goto done;
244 82ebf666 2020-03-18 stsp 	}
245 82ebf666 2020-03-18 stsp 
246 82ebf666 2020-03-18 stsp 	hasport = (strcmp(*proto, "git") == 0 ||
247 82ebf666 2020-03-18 stsp 	    strstr(*proto, "http") == *proto);
248 93658fb9 2020-03-18 stsp 	s = p + 3;
249 93658fb9 2020-03-18 stsp 	p = NULL;
250 93658fb9 2020-03-18 stsp 	if (!hasport) {
251 93658fb9 2020-03-18 stsp 		p = strstr(s, ":");
252 93658fb9 2020-03-18 stsp 		if (p != NULL)
253 93658fb9 2020-03-18 stsp 			p++;
254 93658fb9 2020-03-18 stsp 	}
255 93658fb9 2020-03-18 stsp 	if (p == NULL)
256 93658fb9 2020-03-18 stsp 		p = strstr(s, "/");
257 93658fb9 2020-03-18 stsp 	if (p == NULL || strlen(p) == 1) {
258 82ebf666 2020-03-18 stsp 		err = got_error(GOT_ERR_PARSE_URI);
259 82ebf666 2020-03-18 stsp 		goto done;
260 93658fb9 2020-03-18 stsp 	}
261 93658fb9 2020-03-18 stsp 
262 93658fb9 2020-03-18 stsp 	q = memchr(s, ':', p - s);
263 93658fb9 2020-03-18 stsp 	if (q) {
264 82ebf666 2020-03-18 stsp 		*host = strndup(s, q - s);
265 82ebf666 2020-03-18 stsp 		if (*host == NULL) {
266 82ebf666 2020-03-18 stsp 			err = got_error_from_errno("strndup");
267 82ebf666 2020-03-18 stsp 			goto done;
268 82ebf666 2020-03-18 stsp 		}
269 82ebf666 2020-03-18 stsp 		*port = strndup(q + 1, p - (q + 1));
270 82ebf666 2020-03-18 stsp 		if (*port == NULL) {
271 82ebf666 2020-03-18 stsp 			err = got_error_from_errno("strndup");
272 82ebf666 2020-03-18 stsp 			goto done;
273 82ebf666 2020-03-18 stsp 		}
274 82ebf666 2020-03-18 stsp 	} else {
275 82ebf666 2020-03-18 stsp 		*host = strndup(s, p - s);
276 82ebf666 2020-03-18 stsp 		if (*host == NULL) {
277 82ebf666 2020-03-18 stsp 			err = got_error_from_errno("strndup");
278 82ebf666 2020-03-18 stsp 			goto done;
279 82ebf666 2020-03-18 stsp 		}
280 82ebf666 2020-03-18 stsp 		if (asprintf(port, "%u", GOT_DEFAULT_GIT_PORT) == -1) {
281 82ebf666 2020-03-18 stsp 			err = got_error_from_errno("asprintf");
282 82ebf666 2020-03-18 stsp 			goto done;
283 82ebf666 2020-03-18 stsp 		}
284 93658fb9 2020-03-18 stsp 	}
285 93658fb9 2020-03-18 stsp 
286 82ebf666 2020-03-18 stsp 	*server_path = strdup(p);
287 82ebf666 2020-03-18 stsp 	if (*server_path == NULL) {
288 82ebf666 2020-03-18 stsp 		err = got_error_from_errno("strdup");
289 82ebf666 2020-03-18 stsp 		goto done;
290 82ebf666 2020-03-18 stsp 	}
291 82ebf666 2020-03-18 stsp 
292 93658fb9 2020-03-18 stsp 	p = strrchr(p, '/') + 1;
293 93658fb9 2020-03-18 stsp 	if (!p || strlen(p) == 0) {
294 93658fb9 2020-03-18 stsp 		//werrstr("missing repository in uri");
295 82ebf666 2020-03-18 stsp 		err = got_error(GOT_ERR_PARSE_URI);
296 82ebf666 2020-03-18 stsp 		goto done;
297 93658fb9 2020-03-18 stsp 	}
298 93658fb9 2020-03-18 stsp 	n = strlen(p);
299 93658fb9 2020-03-18 stsp 	if (hassuffix(p, ".git"))
300 93658fb9 2020-03-18 stsp 		n -= 4;
301 82ebf666 2020-03-18 stsp 	*repo_name = strndup(p, (p + n) - p);
302 82ebf666 2020-03-18 stsp 	if (*repo_name == NULL) {
303 82ebf666 2020-03-18 stsp 		err = got_error_from_errno("strndup");
304 82ebf666 2020-03-18 stsp 		goto done;
305 82ebf666 2020-03-18 stsp 	}
306 82ebf666 2020-03-18 stsp done:
307 82ebf666 2020-03-18 stsp 	if (err) {
308 82ebf666 2020-03-18 stsp 		free(*proto);
309 82ebf666 2020-03-18 stsp 		*proto = NULL;
310 82ebf666 2020-03-18 stsp 		free(*host);
311 82ebf666 2020-03-18 stsp 		*host = NULL;
312 82ebf666 2020-03-18 stsp 		free(*port);
313 82ebf666 2020-03-18 stsp 		*port = NULL;
314 82ebf666 2020-03-18 stsp 		free(*server_path);
315 82ebf666 2020-03-18 stsp 		*server_path = NULL;
316 82ebf666 2020-03-18 stsp 		free(*repo_name);
317 82ebf666 2020-03-18 stsp 		*repo_name = NULL;
318 82ebf666 2020-03-18 stsp 	}
319 82ebf666 2020-03-18 stsp 	return err;
320 849f7557 2020-03-18 stsp }
321 849f7557 2020-03-18 stsp 
322 849f7557 2020-03-18 stsp static const struct got_error *
323 849f7557 2020-03-18 stsp check_pack_hash(int fd, size_t sz, uint8_t *hcomp)
324 849f7557 2020-03-18 stsp {
325 849f7557 2020-03-18 stsp 	SHA1_CTX ctx;
326 849f7557 2020-03-18 stsp 	uint8_t hexpect[SHA1_DIGEST_LENGTH];
327 849f7557 2020-03-18 stsp 	uint8_t buf[32 * 1024];
328 849f7557 2020-03-18 stsp 	ssize_t n, r, nr;
329 849f7557 2020-03-18 stsp 
330 849f7557 2020-03-18 stsp 	if (sz < sizeof(struct got_packfile_hdr) + SHA1_DIGEST_LENGTH)
331 849f7557 2020-03-18 stsp 		return got_error_msg(GOT_ERR_BAD_PACKFILE, "short packfile");
332 849f7557 2020-03-18 stsp 
333 849f7557 2020-03-18 stsp 	n = 0;
334 849f7557 2020-03-18 stsp 	SHA1Init(&ctx);
335 849f7557 2020-03-18 stsp 	while (n < sz - 20) {
336 849f7557 2020-03-18 stsp 		nr = sizeof(buf);
337 849f7557 2020-03-18 stsp 		if (sz - n - 20 < sizeof(buf))
338 849f7557 2020-03-18 stsp 			nr = sz - n - 20;
339 849f7557 2020-03-18 stsp 		r = read(fd, buf, nr);
340 849f7557 2020-03-18 stsp 		if (r == -1)
341 849f7557 2020-03-18 stsp 			return got_error_from_errno("read");
342 849f7557 2020-03-18 stsp 		if (r != nr)
343 849f7557 2020-03-18 stsp 			return got_error_msg(GOT_ERR_BAD_PACKFILE,
344 849f7557 2020-03-18 stsp 			    "short pack file");
345 849f7557 2020-03-18 stsp 		SHA1Update(&ctx, buf, nr);
346 849f7557 2020-03-18 stsp 		n += r;
347 849f7557 2020-03-18 stsp 	}
348 849f7557 2020-03-18 stsp 	SHA1Final(hcomp, &ctx);
349 849f7557 2020-03-18 stsp 
350 849f7557 2020-03-18 stsp 	r = read(fd, hexpect, sizeof(hexpect));
351 849f7557 2020-03-18 stsp 	if (r == -1)
352 849f7557 2020-03-18 stsp 		return got_error_from_errno("read");
353 849f7557 2020-03-18 stsp 	if (r != sizeof(hexpect))
354 849f7557 2020-03-18 stsp 		return got_error_msg(GOT_ERR_BAD_PACKFILE,
355 849f7557 2020-03-18 stsp 		    "short pack file");
356 849f7557 2020-03-18 stsp 
357 849f7557 2020-03-18 stsp 	if (memcmp(hcomp, hexpect, SHA1_DIGEST_LENGTH) != 0)
358 849f7557 2020-03-18 stsp 		return got_error_msg(GOT_ERR_BAD_PACKFILE,
359 849f7557 2020-03-18 stsp 		    "packfile checksum mismatch");
360 849f7557 2020-03-18 stsp 
361 849f7557 2020-03-18 stsp 	return NULL;
362 93658fb9 2020-03-18 stsp }
363 93658fb9 2020-03-18 stsp 
364 93658fb9 2020-03-18 stsp const struct got_error*
365 07e52fce 2020-03-18 stsp got_fetch_pack(struct got_object_id **pack_hash, struct got_pathlist_head *refs,
366 531c3985 2020-03-18 stsp     struct got_pathlist_head *symrefs, int fetchfd, struct got_repository *repo,
367 531c3985 2020-03-18 stsp     got_fetch_progress_cb progress_cb, void *progress_arg)
368 93658fb9 2020-03-18 stsp {
369 20eb36d0 2020-03-18 stsp 	int imsg_fetchfds[2], imsg_idxfds[2];
370 20eb36d0 2020-03-18 stsp 	int packfd = -1, npackfd = -1, idxfd = -1, nidxfd = -1, nfetchfd = -1;
371 d582f26c 2020-03-18 stsp 	int tmpfds[3], i;
372 85e8591f 2020-03-18 stsp 	int fetchstatus, idxstatus, done = 0;
373 93658fb9 2020-03-18 stsp 	const struct got_error *err;
374 85e8591f 2020-03-18 stsp 	struct imsgbuf fetchibuf, idxibuf;
375 85e8591f 2020-03-18 stsp 	pid_t fetchpid, idxpid;
376 bb64b798 2020-03-18 stsp 	char *tmppackpath = NULL, *tmpidxpath = NULL;
377 afa77e03 2020-03-18 stsp 	char *packpath = NULL, *idxpath = NULL, *id_str = NULL;
378 bb64b798 2020-03-18 stsp 	const char *repo_path = got_repo_get_path(repo);
379 33501562 2020-03-18 stsp 	struct got_pathlist_head have_refs;
380 abe0f35f 2020-03-18 stsp 	struct got_pathlist_entry *pe;
381 d2cdc636 2020-03-18 stsp 	off_t packfile_size = 0;
382 ee61b6d3 2020-03-18 stsp 	char *path;
383 abe0f35f 2020-03-18 stsp 
384 d9b4d0c0 2020-03-18 stsp 	*pack_hash = NULL;
385 d582f26c 2020-03-18 stsp 	for (i = 0; i < nitems(tmpfds); i++)
386 d582f26c 2020-03-18 stsp 		tmpfds[i] = -1;
387 93658fb9 2020-03-18 stsp 
388 33501562 2020-03-18 stsp 	TAILQ_INIT(&have_refs);
389 33501562 2020-03-18 stsp 
390 66cba96f 2020-03-18 stsp 	if (asprintf(&path, "%s/%s/fetching.pack",
391 66cba96f 2020-03-18 stsp 	    repo_path, GOT_OBJECTS_PACK_DIR) == -1) {
392 ee61b6d3 2020-03-18 stsp 		err = got_error_from_errno("asprintf");
393 ee61b6d3 2020-03-18 stsp 		goto done;
394 8e278d17 2020-03-18 stsp 	}
395 ee61b6d3 2020-03-18 stsp 	err = got_opentemp_named_fd(&tmppackpath, &packfd, path);
396 ee61b6d3 2020-03-18 stsp 	free(path);
397 fe4e1501 2020-03-18 stsp 	if (err)
398 8e278d17 2020-03-18 stsp 		goto done;
399 93658fb9 2020-03-18 stsp 	npackfd = dup(packfd);
400 8e278d17 2020-03-18 stsp 	if (npackfd == -1) {
401 8e278d17 2020-03-18 stsp 		err = got_error_from_errno("dup");
402 8e278d17 2020-03-18 stsp 		goto done;
403 8e278d17 2020-03-18 stsp 	}
404 66cba96f 2020-03-18 stsp 	if (asprintf(&path, "%s/%s/fetching.idx",
405 66cba96f 2020-03-18 stsp 	    repo_path, GOT_OBJECTS_PACK_DIR) == -1) {
406 ee61b6d3 2020-03-18 stsp 		err = got_error_from_errno("asprintf");
407 ee61b6d3 2020-03-18 stsp 		goto done;
408 ee61b6d3 2020-03-18 stsp 	}
409 ee61b6d3 2020-03-18 stsp 	err = got_opentemp_named_fd(&tmpidxpath, &idxfd, path);
410 ee61b6d3 2020-03-18 stsp 	free(path);
411 fe4e1501 2020-03-18 stsp 	if (err)
412 8e278d17 2020-03-18 stsp 		goto done;
413 93658fb9 2020-03-18 stsp 	nidxfd = dup(idxfd);
414 8e278d17 2020-03-18 stsp 	if (nidxfd == -1) {
415 8e278d17 2020-03-18 stsp 		err = got_error_from_errno("dup");
416 8e278d17 2020-03-18 stsp 		goto done;
417 8e278d17 2020-03-18 stsp 	}
418 93658fb9 2020-03-18 stsp 
419 d582f26c 2020-03-18 stsp 	for (i = 0; i < nitems(tmpfds); i++) {
420 d582f26c 2020-03-18 stsp 		tmpfds[i] = got_opentempfd();
421 d582f26c 2020-03-18 stsp 		if (tmpfds[i] == -1) {
422 d582f26c 2020-03-18 stsp 			err = got_error_from_errno("got_opentempfd");
423 d582f26c 2020-03-18 stsp 			goto done;
424 d582f26c 2020-03-18 stsp 		}
425 4788f1ce 2020-03-18 stsp 	}
426 4788f1ce 2020-03-18 stsp 
427 8e278d17 2020-03-18 stsp 	if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, imsg_fetchfds) == -1) {
428 8e278d17 2020-03-18 stsp 		err = got_error_from_errno("socketpair");
429 8e278d17 2020-03-18 stsp 		goto done;
430 8e278d17 2020-03-18 stsp 	}
431 93658fb9 2020-03-18 stsp 
432 85e8591f 2020-03-18 stsp 	fetchpid = fork();
433 85e8591f 2020-03-18 stsp 	if (fetchpid == -1) {
434 8e278d17 2020-03-18 stsp 		err = got_error_from_errno("fork");
435 8e278d17 2020-03-18 stsp 		goto done;
436 85e8591f 2020-03-18 stsp 	} else if (fetchpid == 0){
437 8e278d17 2020-03-18 stsp 		got_privsep_exec_child(imsg_fetchfds,
438 12491971 2020-03-18 stsp 		    GOT_PATH_PROG_FETCH_PACK, tmppackpath);
439 93658fb9 2020-03-18 stsp 	}
440 93658fb9 2020-03-18 stsp 
441 8e278d17 2020-03-18 stsp 	if (close(imsg_fetchfds[1]) != 0) {
442 8e278d17 2020-03-18 stsp 		err = got_error_from_errno("close");
443 8e278d17 2020-03-18 stsp 		goto done;
444 8e278d17 2020-03-18 stsp 	}
445 85e8591f 2020-03-18 stsp 	imsg_init(&fetchibuf, imsg_fetchfds[0]);
446 20eb36d0 2020-03-18 stsp 	nfetchfd = dup(fetchfd);
447 20eb36d0 2020-03-18 stsp 	if (nfetchfd == -1) {
448 20eb36d0 2020-03-18 stsp 		err = got_error_from_errno("dup");
449 20eb36d0 2020-03-18 stsp 		goto done;
450 20eb36d0 2020-03-18 stsp 	}
451 85e8591f 2020-03-18 stsp 	err = got_privsep_send_fetch_req(&fetchibuf, nfetchfd, &have_refs);
452 93658fb9 2020-03-18 stsp 	if (err != NULL)
453 8e278d17 2020-03-18 stsp 		goto done;
454 20eb36d0 2020-03-18 stsp 	nfetchfd = -1;
455 f826addf 2020-03-18 stsp 	err = got_privsep_send_fetch_outfd(&fetchibuf, npackfd);
456 93658fb9 2020-03-18 stsp 	if (err != NULL)
457 8e278d17 2020-03-18 stsp 		goto done;
458 93658fb9 2020-03-18 stsp 	npackfd = dup(packfd);
459 8e278d17 2020-03-18 stsp 	if (npackfd == -1) {
460 8e278d17 2020-03-18 stsp 		err = got_error_from_errno("dup");
461 8e278d17 2020-03-18 stsp 		goto done;
462 8e278d17 2020-03-18 stsp 	}
463 8e278d17 2020-03-18 stsp 
464 d2cdc636 2020-03-18 stsp 	packfile_size = 0;
465 8f2d01a6 2020-03-18 stsp 	while (!done) {
466 d9b4d0c0 2020-03-18 stsp 		struct got_object_id *id = NULL;
467 d9b4d0c0 2020-03-18 stsp 		char *refname = NULL;
468 531c3985 2020-03-18 stsp 		char *server_progress = NULL;
469 d2cdc636 2020-03-18 stsp 		off_t packfile_size_cur;
470 8e278d17 2020-03-18 stsp 
471 8f2d01a6 2020-03-18 stsp 		err = got_privsep_recv_fetch_progress(&done,
472 d2cdc636 2020-03-18 stsp 		    &id, &refname, symrefs, &server_progress,
473 85e8591f 2020-03-18 stsp 		    &packfile_size_cur, &fetchibuf);
474 8f2d01a6 2020-03-18 stsp 		if (err != NULL)
475 8e278d17 2020-03-18 stsp 			goto done;
476 d9b4d0c0 2020-03-18 stsp 		if (done)
477 d9b4d0c0 2020-03-18 stsp 			*pack_hash = id;
478 d9b4d0c0 2020-03-18 stsp 		else if (refname && id) {
479 d9b4d0c0 2020-03-18 stsp 			err = got_pathlist_append(refs, refname, id);
480 8f2d01a6 2020-03-18 stsp 			if (err)
481 8e278d17 2020-03-18 stsp 				goto done;
482 531c3985 2020-03-18 stsp 		} else if (server_progress) {
483 531c3985 2020-03-18 stsp 			char *s, *s0 = server_progress;
484 531c3985 2020-03-18 stsp 			while ((s = strsep(&s0, "\r")) != NULL) {
485 531c3985 2020-03-18 stsp 				if (*s == '\0')
486 531c3985 2020-03-18 stsp 					continue;
487 668a20f6 2020-03-18 stsp 				err = progress_cb(progress_arg, s,
488 668a20f6 2020-03-18 stsp 				    packfile_size_cur, 0, 0, 0, 0);
489 531c3985 2020-03-18 stsp 				if (err)
490 531c3985 2020-03-18 stsp 					break;
491 531c3985 2020-03-18 stsp 			}
492 531c3985 2020-03-18 stsp 			free(server_progress);
493 531c3985 2020-03-18 stsp 			if (err)
494 531c3985 2020-03-18 stsp 				goto done;
495 d2cdc636 2020-03-18 stsp 		} else if (packfile_size_cur != packfile_size) {
496 d2cdc636 2020-03-18 stsp 			err = progress_cb(progress_arg, NULL,
497 668a20f6 2020-03-18 stsp 			    packfile_size_cur, 0, 0, 0, 0);
498 d2cdc636 2020-03-18 stsp 			if (err)
499 d2cdc636 2020-03-18 stsp 				break;
500 d2cdc636 2020-03-18 stsp 			packfile_size = packfile_size_cur;
501 8f2d01a6 2020-03-18 stsp 		}
502 8f2d01a6 2020-03-18 stsp 	}
503 85e8591f 2020-03-18 stsp 	if (waitpid(fetchpid, &fetchstatus, 0) == -1) {
504 8e278d17 2020-03-18 stsp 		err = got_error_from_errno("waitpid");
505 8e278d17 2020-03-18 stsp 		goto done;
506 8e278d17 2020-03-18 stsp 	}
507 849f7557 2020-03-18 stsp 
508 849f7557 2020-03-18 stsp 	if (lseek(packfd, 0, SEEK_SET) == -1) {
509 849f7557 2020-03-18 stsp 		err = got_error_from_errno("lseek");
510 849f7557 2020-03-18 stsp 		goto done;
511 849f7557 2020-03-18 stsp 	}
512 849f7557 2020-03-18 stsp 	err = check_pack_hash(packfd, packfile_size, (*pack_hash)->sha1);
513 849f7557 2020-03-18 stsp 	if (err)
514 849f7557 2020-03-18 stsp 		goto done;
515 531c3985 2020-03-18 stsp  
516 8e278d17 2020-03-18 stsp 	if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, imsg_idxfds) == -1) {
517 8e278d17 2020-03-18 stsp 		err = got_error_from_errno("socketpair");
518 8e278d17 2020-03-18 stsp 		goto done;
519 8e278d17 2020-03-18 stsp 	}
520 85e8591f 2020-03-18 stsp 	idxpid = fork();
521 85e8591f 2020-03-18 stsp 	if (idxpid == -1) {
522 8e278d17 2020-03-18 stsp 		err= got_error_from_errno("fork");
523 8e278d17 2020-03-18 stsp 		goto done;
524 85e8591f 2020-03-18 stsp 	} else if (idxpid == 0)
525 8e278d17 2020-03-18 stsp 		got_privsep_exec_child(imsg_idxfds,
526 12491971 2020-03-18 stsp 		    GOT_PATH_PROG_INDEX_PACK, tmppackpath);
527 8e278d17 2020-03-18 stsp 	if (close(imsg_idxfds[1]) != 0) {
528 8e278d17 2020-03-18 stsp 		err = got_error_from_errno("close");
529 8e278d17 2020-03-18 stsp 		goto done;
530 8e278d17 2020-03-18 stsp 	}
531 85e8591f 2020-03-18 stsp 	imsg_init(&idxibuf, imsg_idxfds[0]);
532 93658fb9 2020-03-18 stsp 
533 668a20f6 2020-03-18 stsp 	err = got_privsep_send_index_pack_req(&idxibuf, (*pack_hash)->sha1,
534 668a20f6 2020-03-18 stsp 	    npackfd);
535 93658fb9 2020-03-18 stsp 	if (err != NULL)
536 8e278d17 2020-03-18 stsp 		goto done;
537 8e278d17 2020-03-18 stsp 	npackfd = -1;
538 73ab1060 2020-03-18 stsp 	err = got_privsep_send_index_pack_outfd(&idxibuf, nidxfd);
539 93658fb9 2020-03-18 stsp 	if (err != NULL)
540 8e278d17 2020-03-18 stsp 		goto done;
541 8e278d17 2020-03-18 stsp 	nidxfd = -1;
542 d582f26c 2020-03-18 stsp 	for (i = 0; i < nitems(tmpfds); i++) {
543 d582f26c 2020-03-18 stsp 		err = got_privsep_send_tmpfd(&idxibuf, tmpfds[i]);
544 d582f26c 2020-03-18 stsp 		if (err != NULL)
545 d582f26c 2020-03-18 stsp 			goto done;
546 d582f26c 2020-03-18 stsp 		tmpfds[i] = -1;
547 d582f26c 2020-03-18 stsp 	}
548 baa9fea0 2020-03-18 stsp 	done = 0;
549 baa9fea0 2020-03-18 stsp 	while (!done) {
550 668a20f6 2020-03-18 stsp 		int nobj_total, nobj_indexed, nobj_loose, nobj_resolved;
551 668a20f6 2020-03-18 stsp 
552 668a20f6 2020-03-18 stsp 		err = got_privsep_recv_index_progress(&done, &nobj_total,
553 668a20f6 2020-03-18 stsp 		    &nobj_indexed, &nobj_loose, &nobj_resolved,
554 668a20f6 2020-03-18 stsp 		    &idxibuf);
555 baa9fea0 2020-03-18 stsp 		if (err != NULL)
556 baa9fea0 2020-03-18 stsp 			goto done;
557 668a20f6 2020-03-18 stsp 		if (nobj_indexed != 0) {
558 baa9fea0 2020-03-18 stsp 			err = progress_cb(progress_arg, NULL,
559 668a20f6 2020-03-18 stsp 			    packfile_size, nobj_total,
560 668a20f6 2020-03-18 stsp 			    nobj_indexed, nobj_loose, nobj_resolved);
561 baa9fea0 2020-03-18 stsp 			if (err)
562 baa9fea0 2020-03-18 stsp 				break;
563 baa9fea0 2020-03-18 stsp 		}
564 baa9fea0 2020-03-18 stsp 		imsg_clear(&idxibuf);
565 baa9fea0 2020-03-18 stsp 	}
566 8e278d17 2020-03-18 stsp 	if (close(imsg_idxfds[0]) == -1) {
567 8e278d17 2020-03-18 stsp 		err = got_error_from_errno("close");
568 8e278d17 2020-03-18 stsp 		goto done;
569 8e278d17 2020-03-18 stsp 	}
570 85e8591f 2020-03-18 stsp 	if (waitpid(idxpid, &idxstatus, 0) == -1) {
571 8e278d17 2020-03-18 stsp 		err = got_error_from_errno("waitpid");
572 8e278d17 2020-03-18 stsp 		goto done;
573 8e278d17 2020-03-18 stsp 	}
574 93658fb9 2020-03-18 stsp 
575 d9b4d0c0 2020-03-18 stsp 	err = got_object_id_str(&id_str, *pack_hash);
576 afa77e03 2020-03-18 stsp 	if (err)
577 8e278d17 2020-03-18 stsp 		goto done;
578 66cba96f 2020-03-18 stsp 	if (asprintf(&packpath, "%s/%s/pack-%s.pack",
579 66cba96f 2020-03-18 stsp 	    repo_path, GOT_OBJECTS_PACK_DIR, id_str) == -1) {
580 8e278d17 2020-03-18 stsp 		err = got_error_from_errno("asprintf");
581 8e278d17 2020-03-18 stsp 		goto done;
582 8e278d17 2020-03-18 stsp 	}
583 93658fb9 2020-03-18 stsp 
584 66cba96f 2020-03-18 stsp 	if (asprintf(&idxpath, "%s/%s/pack-%s.idx",
585 66cba96f 2020-03-18 stsp 	    repo_path, GOT_OBJECTS_PACK_DIR, id_str) == -1) {
586 8e278d17 2020-03-18 stsp 		err = got_error_from_errno("asprintf");
587 8e278d17 2020-03-18 stsp 		goto done;
588 8e278d17 2020-03-18 stsp 	}
589 afa77e03 2020-03-18 stsp 
590 8e278d17 2020-03-18 stsp 	if (rename(tmppackpath, packpath) == -1) {
591 8e278d17 2020-03-18 stsp 		err = got_error_from_errno3("rename", tmppackpath, packpath);
592 8e278d17 2020-03-18 stsp 		goto done;
593 8e278d17 2020-03-18 stsp 	}
594 8e278d17 2020-03-18 stsp 	if (rename(tmpidxpath, idxpath) == -1) {
595 8e278d17 2020-03-18 stsp 		err = got_error_from_errno3("rename", tmpidxpath, idxpath);
596 8e278d17 2020-03-18 stsp 		goto done;
597 8e278d17 2020-03-18 stsp 	}
598 ee61b6d3 2020-03-18 stsp 
599 8e278d17 2020-03-18 stsp done:
600 20eb36d0 2020-03-18 stsp 	if (nfetchfd != -1 && close(nfetchfd) == -1 && err == NULL)
601 8e278d17 2020-03-18 stsp 		err = got_error_from_errno("close");
602 8e278d17 2020-03-18 stsp 	if (npackfd != -1 && close(npackfd) == -1 && err == NULL)
603 8e278d17 2020-03-18 stsp 		err = got_error_from_errno("close");
604 8e278d17 2020-03-18 stsp 	if (packfd != -1 && close(packfd) == -1 && err == NULL)
605 8e278d17 2020-03-18 stsp 		err = got_error_from_errno("close");
606 8e278d17 2020-03-18 stsp 	if (idxfd != -1 && close(idxfd) == -1 && err == NULL)
607 8e278d17 2020-03-18 stsp 		err = got_error_from_errno("close");
608 d582f26c 2020-03-18 stsp 	for (i = 0; i < nitems(tmpfds); i++) {
609 d582f26c 2020-03-18 stsp 		if (tmpfds[i] != -1 && close(tmpfds[i]) == -1 && err == NULL)
610 d582f26c 2020-03-18 stsp 			err = got_error_from_errno("close");
611 d582f26c 2020-03-18 stsp 	}
612 afa77e03 2020-03-18 stsp 	free(tmppackpath);
613 afa77e03 2020-03-18 stsp 	free(tmpidxpath);
614 fe4e1501 2020-03-18 stsp 	free(idxpath);
615 afa77e03 2020-03-18 stsp 	free(packpath);
616 fe4e1501 2020-03-18 stsp 
617 d9b4d0c0 2020-03-18 stsp 	if (err) {
618 d9b4d0c0 2020-03-18 stsp 		free(*pack_hash);
619 d9b4d0c0 2020-03-18 stsp 		*pack_hash = NULL;
620 d9b4d0c0 2020-03-18 stsp 		TAILQ_FOREACH(pe, refs, entry) {
621 d9b4d0c0 2020-03-18 stsp 			free((void *)pe->path);
622 d9b4d0c0 2020-03-18 stsp 			free(pe->data);
623 d9b4d0c0 2020-03-18 stsp 		}
624 d9b4d0c0 2020-03-18 stsp 		got_pathlist_free(refs);
625 d9b4d0c0 2020-03-18 stsp 		TAILQ_FOREACH(pe, symrefs, entry) {
626 d9b4d0c0 2020-03-18 stsp 			free((void *)pe->path);
627 d9b4d0c0 2020-03-18 stsp 			free(pe->data);
628 d9b4d0c0 2020-03-18 stsp 		}
629 d9b4d0c0 2020-03-18 stsp 		got_pathlist_free(symrefs);
630 d9b4d0c0 2020-03-18 stsp 	}
631 8e278d17 2020-03-18 stsp 	return err;
632 93658fb9 2020-03-18 stsp }