12 static char *encprotos[] = {
21 char *ealgs = "rc4_256 sha1";
22 int encproto = Encnone;
23 char *aan = "/bin/aan";
30 int connect(char*, char*, int);
33 void catcher(void*, char*);
34 void sysfatal(char*, ...);
36 int filter(int, char *, char *);
38 static void mksecret(char *, uchar *);
41 * based on libthread's threadsetname, but drags in less library code.
42 * actually just sets the arguments displayed.
45 procsetname(char *fmt, ...)
53 cmdname = vsmprint(fmt, arg);
57 snprint(buf, sizeof buf, "#p/%d/args", getpid());
58 if((fd = open(buf, OWRITE)) >= 0){
59 write(fd, cmdname, strlen(cmdname)+1);
66 post(char *name, char *envname, int srvfd)
71 fd = create(name, OWRITE, 0600);
74 snprint(buf, sizeof(buf), "%d", srvfd);
75 if(write(fd, buf, strlen(buf)) != strlen(buf))
76 sysfatal("srv write: %r");
78 putenv(envname, name);
82 lookup(char *s, char *l[])
86 for (i = 0; l[i] != 0; i++)
87 if (strcmp(l[i], s) == 0)
93 main(int argc, char **argv)
95 char *mntpt, *srvpost, srvfile[64];
96 int backwards = 0, fd, mntflags, oldserver;
122 /* ignored but allowed for compatibility */
129 if ((encproto = lookup(EARGF(usage()), encprotos)) < 0)
133 ealgs = EARGF(usage());
134 if(*ealgs == 0 || strcmp(ealgs, "clear") == 0)
138 keyspec = EARGF(usage());
144 srvpost = EARGF(usage());
156 mntpt = 0; /* to shut up compiler */
178 if (encproto == Enctls)
179 sysfatal("%s: tls has not yet been implemented", argv[0]);
187 fd = connect(argv[0], argv[1], oldserver);
190 fprint(fd, "impo %s %s\n", filterp? "aan": "nofilter",
191 encprotos[encproto]);
193 if (encproto != Encnone && ealgs && ai) {
194 uchar key[16], digest[SHA1dlen];
195 char fromclientsecret[21];
196 char fromserversecret[21];
199 assert(ai->nsecret <= sizeof(key)-4);
200 memmove(key+4, ai->secret, ai->nsecret);
202 /* exchange random numbers */
204 for(i = 0; i < 4; i++)
206 if(write(fd, key, 4) != 4)
207 sysfatal("can't write key part: %r");
208 if(readn(fd, key+12, 4) != 4)
209 sysfatal("can't read key part: %r");
211 /* scramble into two secrets */
212 sha1(key, sizeof(key), digest, nil);
213 mksecret(fromclientsecret, digest);
214 mksecret(fromserversecret, digest+10);
217 fd = filter(fd, filterp, argv[0]);
219 /* set up encryption */
220 procsetname("pushssl");
221 fd = pushssl(fd, ealgs, fromclientsecret, fromserversecret, nil);
223 sysfatal("can't establish ssl connection: %r");
226 fd = filter(fd, filterp, argv[0]);
232 snprint(srvfile, sizeof(srvfile), "/srv/%s", srvpost);
234 post(srvfile, srvpost, fd);
236 procsetname("mount on %s", mntpt);
237 if(mount(fd, -1, mntpt, mntflags, "") < 0)
238 sysfatal("can't mount %s: %r", argv[1]);
241 if(backwards && argc > 1){
242 exec(argv[1], &argv[1]);
243 sysfatal("exec: %r");
249 catcher(void*, char *msg)
252 if(strcmp(msg, "alarm") == 0)
262 procsetname("old9p");
264 sysfatal("pipe: %r");
266 switch(rfork(RFPROC|RFMEM|RFFDG|RFNAMEG)) {
268 sysfatal("rfork srvold9p: %r");
280 fd = open("/sys/log/cpu", OWRITE);
285 execl("/bin/srvold9p", "srvold9p", "-ds", nil);
287 execl("/bin/srvold9p", "srvold9p", "-s", nil);
288 sysfatal("exec srvold9p: %r");
297 connect(char *system, char *tree, int oldserver)
299 char buf[ERRMAX], dir[128], *na;
303 na = netmkaddr(system, 0, "exportfs");
304 procsetname("dial %s", na);
305 if((fd = dial(na, 0, dir, 0)) < 0)
306 sysfatal("can't dial %s: %r", system);
314 procsetname("auth_proxy auth_getkey proto=%q role=client %s",
316 ai = auth_proxy(fd, auth_getkey, "proto=%q role=client %s",
319 sysfatal("%r: %s", system);
323 procsetname("writing tree name %s", tree);
324 n = write(fd, tree, strlen(tree));
326 sysfatal("can't write tree: %r");
328 strcpy(buf, "can't read tree");
330 procsetname("awaiting OK for %s", tree);
331 n = read(fd, buf, sizeof buf - 1);
332 if(n!=2 || buf[0]!='O' || buf[1]!='K'){
334 sysfatal("timed out connecting to %s", na);
335 buf[sizeof buf - 1] = '\0';
336 sysfatal("bad remote tree: %s", buf);
351 * Ignore doauth==0 on purpose. Is it useful here?
354 procsetname("auth_proxy auth_getkey proto=p9any role=server");
355 ai = auth_proxy(0, auth_getkey, "proto=p9any role=server");
357 sysfatal("auth_proxy: %r");
358 if(auth_chuid(ai, nil) < 0)
359 sysfatal("auth_chuid: %r");
360 putenv("service", "import");
364 open("/dev/null", ORDWR);
366 open("/dev/null", ORDWR);
374 fprint(2, "usage: import [-abcC] [-A] [-E clear|ssl|tls] "
375 "[-e 'crypt auth'|clear] [-k keypattern] [-p] [-z] host remotefs [mountpoint]\n");
379 /* Network on fd1, mount driver on fd0 */
381 filter(int fd, char *cmd, char *host)
383 char addr[128], buf[256], *s, *file, *argv[16];
386 if ((len = read(fd, buf, sizeof buf - 1)) < 0)
387 sysfatal("filter: cannot write port; %r");
390 if ((s = strrchr(buf, '!')) == nil)
391 sysfatal("filter: illegally formatted port %s", buf);
392 strecpy(addr, addr+sizeof(addr), netmkaddr(host, "tcp", s+1));
393 strecpy(strrchr(addr, '!'), addr+sizeof(addr), s);
396 fprint(2, "filter: remote %s\n", addr);
398 snprint(buf, sizeof(buf), "%s", cmd);
399 argc = tokenize(buf, argv, nelem(argv)-2);
401 sysfatal("filter: empty command");
406 if (s = strrchr(argv[0], '/'))
410 sysfatal("pipe: %r");
412 switch(rfork(RFNOWAIT|RFPROC|RFMEM|RFFDG)) {
414 sysfatal("filter: rfork; %r");
421 sysfatal("filter: exec; %r");
430 mksecret(char *t, uchar *f)
432 sprint(t, "%2.2ux%2.2ux%2.2ux%2.2ux%2.2ux%2.2ux%2.2ux%2.2ux%2.2ux%2.2ux",
433 f[0], f[1], f[2], f[3], f[4], f[5], f[6], f[7], f[8], f[9]);