1 3880f020 2005-03-18 devnull #include <u.h>
2 3880f020 2005-03-18 devnull #include <libc.h>
3 3880f020 2005-03-18 devnull #include <auth.h>
4 3880f020 2005-03-18 devnull #include <fcall.h>
5 3880f020 2005-03-18 devnull #include <thread.h>
7 5c84c448 2005-03-21 devnull int debug;
8 5c84c448 2005-03-21 devnull char *aname = "";
9 5c84c448 2005-03-21 devnull char *keypattern = "";
11 5c84c448 2005-03-21 devnull int msize;
12 5c84c448 2005-03-21 devnull int doauth;
13 34e8254f 2005-07-27 devnull u32int afid = NOFID;
14 5c84c448 2005-03-21 devnull extern char *post9parg; /* clumsy hack */
15 5c84c448 2005-03-21 devnull void xauth(void);
16 5c84c448 2005-03-21 devnull AuthInfo* xauth_proxy(AuthGetkey *getkey, char *fmt, ...);
19 3880f020 2005-03-18 devnull usage(void)
21 5c84c448 2005-03-21 devnull fprint(2, "usage: srv [-a] [-A aname] [-k keypattern] addr [srvname]\n");
22 3880f020 2005-03-18 devnull threadexitsall("usage");
26 3880f020 2005-03-18 devnull threadmain(int argc, char **argv)
28 3880f020 2005-03-18 devnull char *addr, *service;
30 5c84c448 2005-03-21 devnull fmtinstall('F', fcallfmt);
31 5c84c448 2005-03-21 devnull fmtinstall('M', dirmodefmt);
33 3880f020 2005-03-18 devnull ARGBEGIN{
34 5c84c448 2005-03-21 devnull case 'D':
35 5c84c448 2005-03-21 devnull debug = 1;
37 5c84c448 2005-03-21 devnull case 'A':
38 5c84c448 2005-03-21 devnull /* BUG: should be able to repeat this and establish multiple afids */
39 5c84c448 2005-03-21 devnull aname = EARGF(usage());
41 5c84c448 2005-03-21 devnull case 'a':
42 5c84c448 2005-03-21 devnull doauth = 1;
44 5c84c448 2005-03-21 devnull case 'k':
45 5c84c448 2005-03-21 devnull keypattern = EARGF(usage());
51 3880f020 2005-03-18 devnull if(argc != 1 && argc != 2)
54 3880f020 2005-03-18 devnull addr = netmkaddr(argv[0], "tcp", "9fs");
55 3880f020 2005-03-18 devnull if((fd = dial(addr, nil, nil, nil)) < 0)
56 3880f020 2005-03-18 devnull sysfatal("dial %s: %r", addr);
58 5c84c448 2005-03-21 devnull if(doauth)
61 3880f020 2005-03-18 devnull if(argc == 2)
62 3880f020 2005-03-18 devnull service = argv[1];
64 3880f020 2005-03-18 devnull service = argv[0];
66 c48193be 2006-02-04 devnull rfork(RFNOTEG);
67 3880f020 2005-03-18 devnull if(post9pservice(fd, service) < 0)
68 3880f020 2005-03-18 devnull sysfatal("post9pservice: %r");
70 3880f020 2005-03-18 devnull threadexitsall(0);
74 5c84c448 2005-03-21 devnull do9p(Fcall *tx, Fcall *rx)
76 5c84c448 2005-03-21 devnull static uchar buf[9000];
77 5c84c448 2005-03-21 devnull static char ebuf[200];
80 5c84c448 2005-03-21 devnull n = convS2M(tx, buf, sizeof buf);
81 5c84c448 2005-03-21 devnull if(n == BIT16SZ){
82 5c84c448 2005-03-21 devnull werrstr("convS2M failed");
83 5c84c448 2005-03-21 devnull goto err;
85 5c84c448 2005-03-21 devnull if(debug)
86 5c84c448 2005-03-21 devnull fprint(2, "<- %F\n", tx);
87 5c84c448 2005-03-21 devnull if(write(fd, buf, n) != n)
88 5c84c448 2005-03-21 devnull goto err;
89 5c84c448 2005-03-21 devnull if((n = read9pmsg(fd, buf, sizeof buf)) < 0)
90 5c84c448 2005-03-21 devnull goto err;
91 5c84c448 2005-03-21 devnull if(n == 0){
92 5c84c448 2005-03-21 devnull werrstr("unexpected eof");
93 5c84c448 2005-03-21 devnull goto err;
95 5c84c448 2005-03-21 devnull if(convM2S(buf, n, rx) != n){
96 5c84c448 2005-03-21 devnull werrstr("convM2S failed");
97 5c84c448 2005-03-21 devnull goto err;
99 5c84c448 2005-03-21 devnull if(debug)
100 5c84c448 2005-03-21 devnull fprint(2, "-> %F\n", rx);
101 5c84c448 2005-03-21 devnull if(rx->type != Rerror && rx->type != tx->type+1){
102 5c84c448 2005-03-21 devnull werrstr("unexpected type");
103 5c84c448 2005-03-21 devnull goto err;
105 5c84c448 2005-03-21 devnull if(rx->tag != tx->tag){
106 5c84c448 2005-03-21 devnull werrstr("unexpected tag");
107 5c84c448 2005-03-21 devnull goto err;
112 5c84c448 2005-03-21 devnull rerrstr(ebuf, sizeof ebuf);
113 5c84c448 2005-03-21 devnull rx->ename = ebuf;
114 5c84c448 2005-03-21 devnull rx->type = Rerror;
119 5c84c448 2005-03-21 devnull xauth(void)
121 5c84c448 2005-03-21 devnull Fcall tx, rx;
123 5c84c448 2005-03-21 devnull afid = 0;
124 5c84c448 2005-03-21 devnull tx.type = Tversion;
125 5c84c448 2005-03-21 devnull tx.tag = NOTAG;
126 5c84c448 2005-03-21 devnull tx.version = "9P2000";
127 5c84c448 2005-03-21 devnull tx.msize = 8192;
128 5c84c448 2005-03-21 devnull do9p(&tx, &rx);
129 5c84c448 2005-03-21 devnull if(rx.type == Rerror)
130 5c84c448 2005-03-21 devnull sysfatal("Tversion: %s", rx.ename);
131 5c84c448 2005-03-21 devnull msize = rx.msize;
133 5c84c448 2005-03-21 devnull tx.type = Tauth;
134 5c84c448 2005-03-21 devnull tx.tag = 1;
135 5c84c448 2005-03-21 devnull tx.afid = afid;
136 5c84c448 2005-03-21 devnull tx.uname = getuser();
137 5c84c448 2005-03-21 devnull tx.aname = aname;
138 5c84c448 2005-03-21 devnull do9p(&tx, &rx);
139 5c84c448 2005-03-21 devnull if(rx.type == Rerror){
140 5c84c448 2005-03-21 devnull fprint(2, "rx: %s\n", rx.ename);
141 5c84c448 2005-03-21 devnull afid = NOFID;
145 78378021 2005-05-07 devnull if(xauth_proxy(auth_getkey, "proto=p9any role=client %s", keypattern) == nil)
146 5c84c448 2005-03-21 devnull sysfatal("authproxy: %r");
150 5c84c448 2005-03-21 devnull xread(void *buf, int n)
152 5c84c448 2005-03-21 devnull Fcall tx, rx;
154 5c84c448 2005-03-21 devnull tx.type = Tread;
155 5c84c448 2005-03-21 devnull tx.tag = 1;
156 5c84c448 2005-03-21 devnull tx.fid = 0; /* afid above */
157 5c84c448 2005-03-21 devnull tx.count = n;
158 5c84c448 2005-03-21 devnull tx.offset = 0;
159 5c84c448 2005-03-21 devnull do9p(&tx, &rx);
160 5c84c448 2005-03-21 devnull if(rx.type == Rerror){
161 5c84c448 2005-03-21 devnull werrstr("%s", rx.ename);
162 5c84c448 2005-03-21 devnull return -1;
165 5c84c448 2005-03-21 devnull if(rx.count > n){
166 5c84c448 2005-03-21 devnull werrstr("too much data returned");
167 5c84c448 2005-03-21 devnull return -1;
169 5c84c448 2005-03-21 devnull memmove(buf, rx.data, rx.count);
170 5c84c448 2005-03-21 devnull return rx.count;
174 5c84c448 2005-03-21 devnull xwrite(void *buf, int n)
176 5c84c448 2005-03-21 devnull Fcall tx, rx;
178 5c84c448 2005-03-21 devnull tx.type = Twrite;
179 5c84c448 2005-03-21 devnull tx.tag = 1;
180 5c84c448 2005-03-21 devnull tx.fid = 0; /* afid above */
181 5c84c448 2005-03-21 devnull tx.data = buf;
182 5c84c448 2005-03-21 devnull tx.count = n;
183 5c84c448 2005-03-21 devnull tx.offset = 0;
184 5c84c448 2005-03-21 devnull do9p(&tx, &rx);
185 5c84c448 2005-03-21 devnull if(rx.type == Rerror){
186 5c84c448 2005-03-21 devnull werrstr("%s", rx.ename);
187 5c84c448 2005-03-21 devnull return -1;
189 5c84c448 2005-03-21 devnull return n;
194 5c84c448 2005-03-21 devnull * changed to add -A below
196 5c84c448 2005-03-21 devnull #undef _exits
198 5c84c448 2005-03-21 devnull post9pservice(int fd, char *name)
201 5c84c448 2005-03-21 devnull char *ns, *s;
202 5c84c448 2005-03-21 devnull Waitmsg *w;
204 5c84c448 2005-03-21 devnull if((ns = getns()) == nil)
205 5c84c448 2005-03-21 devnull return -1;
207 5c84c448 2005-03-21 devnull s = smprint("unix!%s/%s", ns, name);
208 5c84c448 2005-03-21 devnull free(ns);
209 5c84c448 2005-03-21 devnull if(s == nil)
210 5c84c448 2005-03-21 devnull return -1;
211 5c84c448 2005-03-21 devnull switch(fork()){
212 5c84c448 2005-03-21 devnull case -1:
213 5c84c448 2005-03-21 devnull return -1;
215 5c84c448 2005-03-21 devnull dup(fd, 0);
216 5c84c448 2005-03-21 devnull dup(fd, 1);
217 5c84c448 2005-03-21 devnull for(i=3; i<20; i++)
218 5c84c448 2005-03-21 devnull close(i);
219 5c84c448 2005-03-21 devnull if(doauth)
220 5c84c448 2005-03-21 devnull execlp("9pserve", "9pserve", "-u",
222 5c84c448 2005-03-21 devnull smprint("%d", msize),
225 5c84c448 2005-03-21 devnull smprint("%d", afid),
226 5c84c448 2005-03-21 devnull s, (char*)0);
228 5c84c448 2005-03-21 devnull execlp("9pserve", "9pserve", "-u", s, (char*)0);
229 5c84c448 2005-03-21 devnull fprint(2, "exec 9pserve: %r\n");
230 5c84c448 2005-03-21 devnull _exits("exec");
231 5c84c448 2005-03-21 devnull default:
232 5c84c448 2005-03-21 devnull w = wait();
233 5c84c448 2005-03-21 devnull if(w == nil)
234 5c84c448 2005-03-21 devnull return -1;
235 5c84c448 2005-03-21 devnull close(fd);
236 5c84c448 2005-03-21 devnull free(s);
237 5c84c448 2005-03-21 devnull if(w->msg && w->msg[0]){
238 5c84c448 2005-03-21 devnull free(w);
239 5c84c448 2005-03-21 devnull werrstr("9pserve failed");
240 5c84c448 2005-03-21 devnull return -1;
242 5c84c448 2005-03-21 devnull free(w);
243 5c84c448 2005-03-21 devnull return 0;
247 5c84c448 2005-03-21 devnull enum { ARgiveup = 100 };
248 5c84c448 2005-03-21 devnull static int
249 5c84c448 2005-03-21 devnull dorpc(AuthRpc *rpc, char *verb, char *val, int len, AuthGetkey *getkey)
251 5c84c448 2005-03-21 devnull int ret;
253 5c84c448 2005-03-21 devnull for(;;){
254 5c84c448 2005-03-21 devnull if((ret = auth_rpc(rpc, verb, val, len)) != ARneedkey && ret != ARbadkey)
255 5c84c448 2005-03-21 devnull return ret;
256 5c84c448 2005-03-21 devnull if(getkey == nil)
257 5c84c448 2005-03-21 devnull return ARgiveup; /* don't know how */
258 5c84c448 2005-03-21 devnull if((*getkey)(rpc->arg) < 0)
259 5c84c448 2005-03-21 devnull return ARgiveup; /* user punted */
265 5c84c448 2005-03-21 devnull * this just proxies what the factotum tells it to.
267 5c84c448 2005-03-21 devnull AuthInfo*
268 5c84c448 2005-03-21 devnull xfauth_proxy(AuthRpc *rpc, AuthGetkey *getkey, char *params)
270 5c84c448 2005-03-21 devnull char *buf;
271 5c84c448 2005-03-21 devnull int m, n, ret;
272 5c84c448 2005-03-21 devnull AuthInfo *a;
273 5c84c448 2005-03-21 devnull char oerr[ERRMAX];
275 5c84c448 2005-03-21 devnull rerrstr(oerr, sizeof oerr);
276 5c84c448 2005-03-21 devnull werrstr("UNKNOWN AUTH ERROR");
278 5c84c448 2005-03-21 devnull if(dorpc(rpc, "start", params, strlen(params), getkey) != ARok){
279 5c84c448 2005-03-21 devnull werrstr("fauth_proxy start: %r");
280 5c84c448 2005-03-21 devnull return nil;
283 5c84c448 2005-03-21 devnull buf = malloc(AuthRpcMax);
284 5c84c448 2005-03-21 devnull if(buf == nil)
285 5c84c448 2005-03-21 devnull return nil;
286 5c84c448 2005-03-21 devnull for(;;){
287 5c84c448 2005-03-21 devnull switch(dorpc(rpc, "read", nil, 0, getkey)){
288 5c84c448 2005-03-21 devnull case ARdone:
289 5c84c448 2005-03-21 devnull free(buf);
290 5c84c448 2005-03-21 devnull a = auth_getinfo(rpc);
291 5c84c448 2005-03-21 devnull errstr(oerr, sizeof oerr); /* no error, restore whatever was there */
292 5c84c448 2005-03-21 devnull return a;
293 5c84c448 2005-03-21 devnull case ARok:
294 5c84c448 2005-03-21 devnull if(xwrite(rpc->arg, rpc->narg) != rpc->narg){
295 5c84c448 2005-03-21 devnull werrstr("auth_proxy write fid: %r");
296 5c84c448 2005-03-21 devnull goto Error;
299 5c84c448 2005-03-21 devnull case ARphase:
301 5c84c448 2005-03-21 devnull memset(buf, 0, AuthRpcMax);
302 5c84c448 2005-03-21 devnull while((ret = dorpc(rpc, "write", buf, n, getkey)) == ARtoosmall){
303 5c84c448 2005-03-21 devnull if(atoi(rpc->arg) > AuthRpcMax)
305 5c84c448 2005-03-21 devnull m = xread(buf+n, atoi(rpc->arg)-n);
306 5c84c448 2005-03-21 devnull if(m <= 0){
307 5c84c448 2005-03-21 devnull if(m == 0)
308 5c84c448 2005-03-21 devnull werrstr("auth_proxy short read: %s", buf);
309 5c84c448 2005-03-21 devnull goto Error;
313 5c84c448 2005-03-21 devnull if(ret != ARok){
314 5c84c448 2005-03-21 devnull werrstr("auth_proxy rpc write: %s: %r", buf);
315 5c84c448 2005-03-21 devnull goto Error;
318 5c84c448 2005-03-21 devnull default:
319 5c84c448 2005-03-21 devnull werrstr("auth_proxy rpc: %r");
320 5c84c448 2005-03-21 devnull goto Error;
324 5c84c448 2005-03-21 devnull free(buf);
325 5c84c448 2005-03-21 devnull return nil;
328 5c84c448 2005-03-21 devnull AuthInfo*
329 5c84c448 2005-03-21 devnull xauth_proxy(AuthGetkey *getkey, char *fmt, ...)
331 5c84c448 2005-03-21 devnull char *p;
332 5c84c448 2005-03-21 devnull va_list arg;
333 5c84c448 2005-03-21 devnull AuthInfo *ai;
334 5c84c448 2005-03-21 devnull AuthRpc *rpc;
336 5c84c448 2005-03-21 devnull quotefmtinstall(); /* just in case */
337 5c84c448 2005-03-21 devnull va_start(arg, fmt);
338 5c84c448 2005-03-21 devnull p = vsmprint(fmt, arg);
339 5c84c448 2005-03-21 devnull va_end(arg);
341 5c84c448 2005-03-21 devnull rpc = auth_allocrpc();
342 5c84c448 2005-03-21 devnull if(rpc == nil){
343 5c84c448 2005-03-21 devnull free(p);
344 5c84c448 2005-03-21 devnull return nil;
347 5c84c448 2005-03-21 devnull ai = xfauth_proxy(rpc, getkey, p);
348 5c84c448 2005-03-21 devnull free(p);
349 5c84c448 2005-03-21 devnull auth_freerpc(rpc);
350 5c84c448 2005-03-21 devnull return ai;