WebSVN – planix.SVN – Blame – /os/branches/planix-v0/sys/src/cmd/unix/9pfreebsd/mount_9fs/mount_9fs.c

Rev	Author	Line No.	Line
2	-	1	`/*`
		2	`* Copyright (c) 1992, 1993, 1994`
		3	`* The Regents of the University of California. All rights reserved.`
		4	`*`
		5	`* This code is derived from software contributed to Berkeley by`
		6	`* Rick Macklem at The University of Guelph.`
		7	`*`
		8	`* Redistribution and use in source and binary forms, with or without`
		9	`* modification, are permitted provided that the following conditions`
		10	`* are met:`
		11	`* 1. Redistributions of source code must retain the above copyright`
		12	`* notice, this list of conditions and the following disclaimer.`
		13	`* 2. Redistributions in binary form must reproduce the above copyright`
		14	`* notice, this list of conditions and the following disclaimer in the`
		15	`* documentation and/or other materials provided with the distribution.`
		16	`* 3. All advertising materials mentioning features or use of this software`
		17	`* must display the following acknowledgement:`
		18	`* This product includes software developed by the University of`
		19	`* California, Berkeley and its contributors.`
		20	`* 4. Neither the name of the University nor the names of its contributors`
		21	`* may be used to endorse or promote products derived from this software`
		22	`* without specific prior written permission.`
		23	`*`
		24	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
		25	`* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE`
		26	`* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE`
		27	`* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE`
		28	`* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL`
		29	`* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS`
		30	`* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)`
		31	`* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT`
		32	`* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY`
		33	`* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF`
		34	`* SUCH DAMAGE.`
		35	`*/`
		36
		37	`#ifndef lint`
		38	`static const char copyright[] =`
		39	`"@(#) Copyright (c) 1992, 1993, 1994\n\`
		40	`The Regents of the University of California. All rights reserved.\n";`
		41	`#endif /* not lint */`
		42
		43	`#ifndef lint`
		44	`#if 0`
		45	`static char sccsid[] = "@(#)mount_nfs.c 8.11 (Berkeley) 5/4/95";`
		46	`#endif`
		47	`static const char rcsid[] =`
		48	`"$Id: mount_nfs.c,v 1.29 1998/07/06 07:15:53 charnier Exp $";`
		49	`#endif /* not lint */`
		50
		51	`#include <sys/param.h>`
		52	`#include <sys/mount.h>`
		53	`#include <sys/stat.h>`
		54	`#include <sys/syslog.h>`
		55
		56	`#include <rpc/rpc.h>`
		57	`#include <rpc/pmap_clnt.h>`
		58	`#include <rpc/pmap_prot.h>`
		59
		60	`#ifdef ISO`
		61	`#include <netiso/iso.h>`
		62	`#endif`
		63
		64	`#ifdef NFSKERB`
		65	`#include <kerberosIV/des.h>`
		66	`#include <kerberosIV/krb.h>`
		67	`#endif`
		68
		69	`#include <sys/vnode.h>`
		70	`#include "9p.h"`
		71	`#include "9auth.h"`
		72	`#include "9fs.h"`
		73	`#include <pwd.h>`
		74
		75	`#include <nfs/rpcv2.h>`
		76	`#include <nfs/nfsproto.h>`
		77	`#include <nfs/nfs.h>`
		78	`#include <nfs/nqnfs.h>`
		79
		80	`#include <arpa/inet.h>`
		81
		82	`#include <ctype.h>`
		83	`#include <err.h>`
		84	`#include <errno.h>`
		85	`#include <netdb.h>`
		86	`#include <stdio.h>`
		87	`#include <stdlib.h>`
		88	`#include <string.h>`
		89	`#include <strings.h>`
		90	`#include <sysexits.h>`
		91	`#include <unistd.h>`
		92
		93	`#include "mntopts.h"`
		94
		95	`#define ALTF_BG 0x1`
		96	`#define ALTF_NOCONN 0x2`
		97	`#define ALTF_DUMBTIMR 0x4`
		98	`#define ALTF_INTR 0x8`
		99	`#define ALTF_KERB 0x10`
		100	`#define ALTF_NFSV3 0x20`
		101	`#define ALTF_RDIRPLUS 0x40`
		102	`#define ALTF_MNTUDP 0x80`
		103	`#define ALTF_RESVPORT 0x100`
		104	`#define ALTF_SEQPACKET 0x200`
		105	`#define ALTF_NQNFS 0x400`
		106	`#define ALTF_SOFT 0x800`
		107	`#define ALTF_TCP 0x1000`
		108	`#define ALTF_PORT 0x2000`
		109	`#define ALTF_NFSV2 0x4000`
		110	`#define ALTF_ACREGMIN 0x8000`
		111	`#define ALTF_ACREGMAX 0x10000`
		112	`#define ALTF_ACDIRMIN 0x20000`
		113	`#define ALTF_ACDIRMAX 0x40000`
		114
		115	`struct mntopt mopts[] = {`
		116	`MOPT_STDOPTS,`
		117	`MOPT_FORCE,`
		118	`MOPT_UPDATE,`
		119	`MOPT_ASYNC,`
		120	`{ "bg", 0, ALTF_BG, 1 },`
		121	`{ "conn", 1, ALTF_NOCONN, 1 },`
		122	`{ "dumbtimer", 0, ALTF_DUMBTIMR, 1 },`
		123	`{ "intr", 0, ALTF_INTR, 1 },`
		124	`#ifdef NFSKERB`
		125	`{ "kerb", 0, ALTF_KERB, 1 },`
		126	`#endif`
		127	`{ "nfsv3", 0, ALTF_NFSV3, 1 },`
		128	`{ "rdirplus", 0, ALTF_RDIRPLUS, 1 },`
		129	`{ "mntudp", 0, ALTF_MNTUDP, 1 },`
		130	`{ "resvport", 0, ALTF_RESVPORT, 1 },`
		131	`#ifdef ISO`
		132	`{ "seqpacket", 0, ALTF_SEQPACKET, 1 },`
		133	`#endif`
		134	`{ "nqnfs", 0, ALTF_NQNFS, 1 },`
		135	`{ "soft", 0, ALTF_SOFT, 1 },`
		136	`{ "tcp", 0, ALTF_TCP, 1 },`
		137	`{ "port=", 0, ALTF_PORT, 1 },`
		138	`{ "nfsv2", 0, ALTF_NFSV2, 1 },`
		139	`{ "acregmin=", 0, ALTF_ACREGMIN, 1 },`
		140	`{ "acregmax=", 0, ALTF_ACREGMAX, 1 },`
		141	`{ "acdirmin=", 0, ALTF_ACDIRMIN, 1 },`
		142	`{ "acdirmax=", 0, ALTF_ACDIRMAX, 1 },`
		143	`{ NULL }`
		144	`};`
		145
		146	`struct u9fs_args u9fsdefargs = {`
		147	`1,`
		148	`(struct sockaddr *)0,`
		149	`sizeof (struct sockaddr_in),`
		150	`SOCK_SEQPACKET,`
		151	`IPPROTO_IL,`
		152	`0,`
		153	`0,`
		154	`0,`
		155	`0,`
		156	`0,`
		157	`(char *)0,`
		158	`0,`
		159	`0,`
		160	`SOCK_SEQPACKET,`
		161	`IPPROTO_IL,`
		162	`};`
		163
		164	`struct nfhret {`
		165	`u_long stat;`
		166	`long vers;`
		167	`long auth;`
		168	`long fhsize;`
		169	`u_char nfh[NFSX_V3FHMAX];`
		170	`};`
		171	`#define DEF_RETRY 10000`
		172	`#define BGRND 1`
		173	`#define ISBGRND 2`
		174	`int retrycnt = DEF_RETRY;`
		175	`int opflags = 0;`
		176	`int nfsproto = IPPROTO_UDP;`
		177	`int mnttcp_ok = 1;`
		178	`u_short port_no = 0;`
		179	`enum {`
		180	`ANY,`
		181	`V2,`
		182	`V3`
		183	`} mountmode = ANY;`
		184
		185	`#ifdef NFSKERB`
		186	`char inst[INST_SZ];`
		187	`char realm[REALM_SZ];`
		188	`struct {`
		189	`u_long kind;`
		190	`KTEXT_ST kt;`
		191	`} ktick;`
		192	`struct nfsrpc_nickverf kverf;`
		193	`struct nfsrpc_fullblock kin, kout;`
		194	`NFSKERBKEY_T kivec;`
		195	`CREDENTIALS kcr;`
		196	`struct timeval ktv;`
		197	`NFSKERBKEYSCHED_T kerb_keysched;`
		198	`#endif`
		199
		200	`int getnfsargs __P((char , struct u9fs_args ));`
		201	`#ifdef ISO`
		202	`struct iso_addr iso_addr __P((const char ));`
		203	`#endif`
		204	`void set_rpc_maxgrouplist __P((int));`
		205	`void usage __P((void)) __dead2;`
		206	`int xdr_dir __P((XDR , char ));`
		207	`int xdr_fh __P((XDR , struct nfhret ));`
		208
		209	`void gethostaddr(char * hostp, struct sockaddr_in * saddr);`
		210
		211	`/*`
		212	`* Used to set mount flags with getmntopts. Call with dir=TRUE to`
		213	`* initialize altflags from the current mount flags. Call with`
		214	`* dir=FALSE to update mount flags with the new value of altflags after`
		215	`* the call to getmntopts.`
		216	`*/`
		217	`static void`
		218	`setflags(int* altflags, int* nfsflags, int dir)`
		219	`{`
		220	`#define F2(af, nf) \`
		221	`if (dir) { \`
		222	`if (*nfsflags & NFSMNT_##nf) \`
		223	`*altflags \|= ALTF_##af; \`
		224	`else \`
		225	`*altflags &= ~ALTF_##af; \`
		226	`} else { \`
		227	`if (*altflags & ALTF_##af) \`
		228	`*nfsflags \|= NFSMNT_##nf; \`
		229	`else \`
		230	`*nfsflags &= ~NFSMNT_##nf; \`
		231	`}`
		232	`#define F(f) F2(f,f)`
		233
		234	`F(NOCONN);`
		235	`F(DUMBTIMR);`
		236	`F2(INTR, INT);`
		237	`#ifdef NFSKERB`
		238	`F(KERB);`
		239	`#endif`
		240	`F(RDIRPLUS);`
		241	`F(RESVPORT);`
		242	`F(NQNFS);`
		243	`F(SOFT);`
		244
		245	`#undef F`
		246	`#undef F2`
		247	`}`
		248
		249	`int`
		250	`main(argc, argv)`
		251	`int argc;`
		252	`char *argv[];`
		253	`{`
		254	`register int c;`
		255	`register struct u9fs_args *nfsargsp;`
		256	`struct u9fs_args u9fsargs;`
		257	`struct nfsd_cargs ncd;`
		258	`int mntflags, altflags, i, nfssvc_flag, num;`
		259	`char name, p, *spec;`
		260	`struct vfsconf vfc;`
		261	`int error = 0;`
		262	`static struct sockaddr_in authaddr;`
		263
		264	`#ifdef NFSKERB`
		265	`uid_t last_ruid;`
		266
		267	`last_ruid = -1;`
		268	`(void)strcpy(realm, KRB_REALM);`
		269	`if (sizeof (struct nfsrpc_nickverf) != RPCX_NICKVERF \|\|`
		270	`sizeof (struct nfsrpc_fullblock) != RPCX_FULLBLOCK \|\|`
		271	`((char )&ktick.kt) - ((char )&ktick) != NFSX_UNSIGNED \|\|`
		272	`((char )ktick.kt.dat) - ((char )&ktick) != 2 * NFSX_UNSIGNED)`
		273	`fprintf(stderr, "Yikes! NFSKERB structs not packed!!\n");`
		274	`#endif /* NFSKERB */`
		275	`retrycnt = DEF_RETRY;`
		276
		277	`mntflags = 0;`
		278	`altflags = 0;`
		279	`u9fsargs = u9fsdefargs;`
		280	`nfsargsp = &u9fsargs;`
		281	`while ((c = getopt(argc, argv,`
		282	`"23a:bcdD:g:I:iKL:lm:No:PpqR:r:sTt:w:x:Uu:")) != -1)`
		283	`switch (c) {`
		284	`case '2':`
		285	`mountmode = V2;`
		286	`break;`
		287	`case '3':`
		288	`mountmode = V3;`
		289	`break;`
		290	`case 'a':`
		291	`num = strtol(optarg, &p, 10);`
		292	`if (*p \|\| num < 0)`
		293	`errx(1, "illegal -a value -- %s", optarg);`
		294	`#if 0`
		295	`nfsargsp->readahead = num;`
		296	`nfsargsp->flags \|= NFSMNT_READAHEAD;`
		297	`#endif`
		298	`break;`
		299	`case 'b':`
		300	`opflags \|= BGRND;`
		301	`break;`
		302	`case 'c':`
		303	`nfsargsp->flags \|= NFSMNT_NOCONN;`
		304	`break;`
		305	`case 'D':`
		306	`num = strtol(optarg, &p, 10);`
		307	`if (*p \|\| num <= 0)`
		308	`errx(1, "illegal -D value -- %s", optarg);`
		309	`#if 0`
		310	`nfsargsp->deadthresh = num;`
		311	`nfsargsp->flags \|= NFSMNT_DEADTHRESH;`
		312	`#endif`
		313	`break;`
		314	`case 'd':`
		315	`nfsargsp->flags \|= NFSMNT_DUMBTIMR;`
		316	`break;`
		317	`case 'g':`
		318	`num = strtol(optarg, &p, 10);`
		319	`if (*p \|\| num <= 0)`
		320	`errx(1, "illegal -g value -- %s", optarg);`
		321	`#ifdef __FreeBSD__`
		322	`set_rpc_maxgrouplist(num);`
		323	`#endif`
		324	`#if 0`
		325	`nfsargsp->maxgrouplist = num;`
		326	`nfsargsp->flags \|= NFSMNT_MAXGRPS;`
		327	`#endif`
		328	`break;`
		329	`case 'I':`
		330	`num = strtol(optarg, &p, 10);`
		331	`if (*p \|\| num <= 0)`
		332	`errx(1, "illegal -I value -- %s", optarg);`
		333	`nfsargsp->readdirsize = num;`
		334	`nfsargsp->flags \|= NFSMNT_READDIRSIZE;`
		335	`break;`
		336	`case 'i':`
		337	`nfsargsp->flags \|= NFSMNT_INT;`
		338	`break;`
		339	`#ifdef NFSKERB`
		340	`case 'K':`
		341	`nfsargsp->flags \|= NFSMNT_KERB;`
		342	`break;`
		343	`#endif`
		344	`case 'L':`
		345	`num = strtol(optarg, &p, 10);`
		346	`if (*p \|\| num < 2)`
		347	`errx(1, "illegal -L value -- %s", optarg);`
		348	`#if 0`
		349	`nfsargsp->leaseterm = num;`
		350	`nfsargsp->flags \|= NFSMNT_LEASETERM;`
		351	`#endif`
		352	`break;`
		353	`case 'l':`
		354	`nfsargsp->flags \|= NFSMNT_RDIRPLUS;`
		355	`break;`
		356	`#ifdef NFSKERB`
		357	`case 'm':`
		358	`(void)strncpy(realm, optarg, REALM_SZ - 1);`
		359	`realm[REALM_SZ - 1] = '\0';`
		360	`break;`
		361	`#endif`
		362	`case 'N':`
		363	`nfsargsp->flags &= ~NFSMNT_RESVPORT;`
		364	`break;`
		365	`case 'o':`
		366	`altflags = 0;`
		367	`setflags(&altflags, &nfsargsp->flags, TRUE);`
		368	`if (mountmode == V2)`
		369	`altflags \|= ALTF_NFSV2;`
		370	`else if (mountmode == V3)`
		371	`altflags \|= ALTF_NFSV3;`
		372	`getmntopts(optarg, mopts, &mntflags, &altflags);`
		373	`setflags(&altflags, &nfsargsp->flags, FALSE);`
		374	`/*`
		375	`* Handle altflags which don't map directly to`
		376	`* mount flags.`
		377	`*/`
		378	`if(altflags & ALTF_BG)`
		379	`opflags \|= BGRND;`
		380	`if(altflags & ALTF_MNTUDP)`
		381	`mnttcp_ok = 0;`
		382	`#ifdef ISO`
		383	`if(altflags & ALTF_SEQPACKET)`
		384	`nfsargsp->sotype = SOCK_SEQPACKET;`
		385	`#endif`
		386	`if(altflags & ALTF_TCP) {`
		387	`nfsargsp->sotype = SOCK_STREAM;`
		388	`nfsproto = IPPROTO_TCP;`
		389	`}`
		390	`if(altflags & ALTF_PORT)`
		391	`port_no = atoi(strstr(optarg, "port=") + 5);`
		392	`mountmode = ANY;`
		393	`if(altflags & ALTF_NFSV2)`
		394	`mountmode = V2;`
		395	`if(altflags & ALTF_NFSV3)`
		396	`mountmode = V3;`
		397	`#if 0`
		398	`if(altflags & ALTF_ACREGMIN)`
		399	`nfsargsp->acregmin = atoi(strstr(optarg,`
		400	`"acregmin=") + 9);`
		401	`if(altflags & ALTF_ACREGMAX)`
		402	`nfsargsp->acregmax = atoi(strstr(optarg,`
		403	`"acregmax=") + 9);`
		404	`if(altflags & ALTF_ACDIRMIN)`
		405	`nfsargsp->acdirmin = atoi(strstr(optarg,`
		406	`"acdirmin=") + 9);`
		407	`if(altflags & ALTF_ACDIRMAX)`
		408	`nfsargsp->acdirmax = atoi(strstr(optarg,`
		409	`"acdirmax=") + 9);`
		410	`#endif`
		411	`break;`
		412	`case 'P':`
		413	`/* obsolete for NFSMNT_RESVPORT, now default */`
		414	`break;`
		415	`#ifdef ISO`
		416	`case 'p':`
		417	`nfsargsp->sotype = SOCK_SEQPACKET;`
		418	`break;`
		419	`#endif`
		420	`case 'q':`
		421	`mountmode = V3;`
		422	`nfsargsp->flags \|= NFSMNT_NQNFS;`
		423	`break;`
		424	`case 'R':`
		425	`num = strtol(optarg, &p, 10);`
		426	`if (*p \|\| num <= 0)`
		427	`errx(1, "illegal -R value -- %s", optarg);`
		428	`retrycnt = num;`
		429	`break;`
		430	`case 'r':`
		431	`num = strtol(optarg, &p, 10);`
		432	`if (*p \|\| num <= 0)`
		433	`errx(1, "illegal -r value -- %s", optarg);`
		434	`nfsargsp->rsize = num;`
		435	`nfsargsp->flags \|= NFSMNT_RSIZE;`
		436	`break;`
		437	`case 's':`
		438	`nfsargsp->flags \|= NFSMNT_SOFT;`
		439	`break;`
		440	`case 'T':`
		441	`nfsargsp->sotype = SOCK_STREAM;`
		442	`nfsproto = IPPROTO_TCP;`
		443	`break;`
		444	`case 't':`
		445	`num = strtol(optarg, &p, 10);`
		446	`if (*p \|\| num <= 0)`
		447	`errx(1, "illegal -t value -- %s", optarg);`
		448	`#if 0`
		449	`nfsargsp->timeo = num;`
		450	`nfsargsp->flags \|= NFSMNT_TIMEO;`
		451	`#endif`
		452	`break;`
		453	`case 'w':`
		454	`num = strtol(optarg, &p, 10);`
		455	`if (*p \|\| num <= 0)`
		456	`errx(1, "illegal -w value -- %s", optarg);`
		457	`nfsargsp->wsize = num;`
		458	`nfsargsp->flags \|= NFSMNT_WSIZE;`
		459	`break;`
		460	`case 'x':`
		461	`num = strtol(optarg, &p, 10);`
		462	`if (*p \|\| num <= 0)`
		463	`errx(1, "illegal -x value -- %s", optarg);`
		464	`#if 0`
		465	`nfsargsp->retrans = num;`
		466	`nfsargsp->flags \|= NFSMNT_RETRANS;`
		467	`#endif`
		468	`break;`
		469	`case 'U':`
		470	`mnttcp_ok = 0;`
		471	`break;`
		472	`case 'u':`
		473	`if( (p = index(optarg, '@')) ) {`
		474	`*p++ = 0;`
		475	`strncpy(nfsargsp->uname, optarg, U9FS_NAMELEN);`
		476	`gethostaddr(p, & authaddr);`
		477	`authaddr.sin_family = AF_INET;`
		478	`authaddr.sin_port = htons(U9AUTH_ILPORT);`
		479	`nfsargsp->authaddr = (struct sockaddr *) & authaddr;`
		480	`nfsargsp->authaddrlen = sizeof(authaddr);`
		481	`} else`
		482	`strncpy(nfsargsp->uname, optarg, U9FS_NAMELEN);`
		483	`break;`
		484	`default:`
		485	`usage();`
		486	`break;`
		487	`}`
		488	`argc -= optind;`
		489	`argv += optind;`
		490
		491	`if (argc != 2) {`
		492	`usage();`
		493	`/* NOTREACHED */`
		494	`}`
		495
		496	`spec = *argv++;`
		497	`name = *argv;`
		498
		499	`if (!getnfsargs(spec, nfsargsp))`
		500	`exit(1);`
		501
		502	`#ifdef __FreeBSD__`
		503	`error = getvfsbyname("u9fs", &vfc);`
		504	`if (error && vfsisloadable("nfs")) {`
		505	`if(vfsload("nfs"))`
		506	`err(EX_OSERR, "vfsload(nfs)");`
		507	`endvfsent(); /* clear cache */`
		508	`error = getvfsbyname("nfs", &vfc);`
		509	`}`
		510	`if (error)`
		511	`errx(EX_OSERR, "nfs filesystem is not available");`
		512
		513	`if (mount(vfc.vfc_name, name, mntflags, nfsargsp))`
		514	`err(1, "%s", name);`
		515	`#else`
		516	`if (mount("nfs", name, mntflags, nfsargsp))`
		517	`err(1, "%s", name);`
		518	`#endif`
		519	`if (nfsargsp->flags & (NFSMNT_NQNFS \| NFSMNT_KERB)) {`
		520	`if ((opflags & ISBGRND) == 0) {`
		521	`if ((i = fork())) {`
		522	`if (i == -1)`
		523	`err(1, "nqnfs 1");`
		524	`exit(0);`
		525	`}`
		526	`(void) setsid();`
		527	`(void) close(STDIN_FILENO);`
		528	`(void) close(STDOUT_FILENO);`
		529	`(void) close(STDERR_FILENO);`
		530	`(void) chdir("/");`
		531	`}`
		532	`openlog("mount_nfs:", LOG_PID, LOG_DAEMON);`
		533	`nfssvc_flag = NFSSVC_MNTD;`
		534	`ncd.ncd_dirp = name;`
		535	`while (nfssvc(nfssvc_flag, (caddr_t)&ncd) < 0) {`
		536	`if (errno != ENEEDAUTH) {`
		537	`syslog(LOG_ERR, "nfssvc err %m");`
		538	`continue;`
		539	`}`
		540	`nfssvc_flag =`
		541	`NFSSVC_MNTD \| NFSSVC_GOTAUTH \| NFSSVC_AUTHINFAIL;`
		542	`#ifdef NFSKERB`
		543	`/*`
		544	`* Set up as ncd_authuid for the kerberos call.`
		545	`* Must set ruid to ncd_authuid and reset the`
		546	`* ticket name iff ncd_authuid is not the same`
		547	`* as last time, so that the right ticket file`
		548	`* is found.`
		549	`* Get the Kerberos credential structure so that`
		550	`* we have the session key and get a ticket for`
		551	`* this uid.`
		552	`* For more info see the IETF Draft "Authentication`
		553	`* in ONC RPC".`
		554	`*/`
		555	`if (ncd.ncd_authuid != last_ruid) {`
		556	`char buf[512];`
		557	`(void)sprintf(buf, "%s%d",`
		558	`TKT_ROOT, ncd.ncd_authuid);`
		559	`krb_set_tkt_string(buf);`
		560	`last_ruid = ncd.ncd_authuid;`
		561	`}`
		562	`setreuid(ncd.ncd_authuid, 0);`
		563	`kret = krb_get_cred(NFS_KERBSRV, inst, realm, &kcr);`
		564	`if (kret == RET_NOTKT) {`
		565	`kret = get_ad_tkt(NFS_KERBSRV, inst, realm,`
		566	`DEFAULT_TKT_LIFE);`
		567	`if (kret == KSUCCESS)`
		568	`kret = krb_get_cred(NFS_KERBSRV, inst, realm,`
		569	`&kcr);`
		570	`}`
		571	`if (kret == KSUCCESS)`
		572	`kret = krb_mk_req(&ktick.kt, NFS_KERBSRV, inst,`
		573	`realm, 0);`
		574
		575	`/*`
		576	`* Fill in the AKN_FULLNAME authenticator and verifier.`
		577	`* Along with the Kerberos ticket, we need to build`
		578	`* the timestamp verifier and encrypt it in CBC mode.`
		579	`*/`
		580	`if (kret == KSUCCESS &&`
		581	`ktick.kt.length <= (RPCAUTH_MAXSIZ-3*NFSX_UNSIGNED)`
		582	`&& gettimeofday(&ktv, (struct timezone *)0) == 0) {`
		583	`ncd.ncd_authtype = RPCAUTH_KERB4;`
		584	`ncd.ncd_authstr = (u_char *)&ktick;`
		585	`ncd.ncd_authlen = nfsm_rndup(ktick.kt.length) +`
		586	`3 * NFSX_UNSIGNED;`
		587	`ncd.ncd_verfstr = (u_char *)&kverf;`
		588	`ncd.ncd_verflen = sizeof (kverf);`
		589	`memmove(ncd.ncd_key, kcr.session,`
		590	`sizeof (kcr.session));`
		591	`kin.t1 = htonl(ktv.tv_sec);`
		592	`kin.t2 = htonl(ktv.tv_usec);`
		593	`kin.w1 = htonl(NFS_KERBTTL);`
		594	`kin.w2 = htonl(NFS_KERBTTL - 1);`
		595	`bzero((caddr_t)kivec, sizeof (kivec));`
		596
		597	`/*`
		598	`* Encrypt kin in CBC mode using the session`
		599	`* key in kcr.`
		600	`*/`
		601	`XXX`
		602
		603	`/*`
		604	`* Finally, fill the timestamp verifier into the`
		605	`* authenticator and verifier.`
		606	`*/`
		607	`ktick.kind = htonl(RPCAKN_FULLNAME);`
		608	`kverf.kind = htonl(RPCAKN_FULLNAME);`
		609	`NFS_KERBW1(ktick.kt) = kout.w1;`
		610	`ktick.kt.length = htonl(ktick.kt.length);`
		611	`kverf.verf.t1 = kout.t1;`
		612	`kverf.verf.t2 = kout.t2;`
		613	`kverf.verf.w2 = kout.w2;`
		614	`nfssvc_flag = NFSSVC_MNTD \| NFSSVC_GOTAUTH;`
		615	`}`
		616	`setreuid(0, 0);`
		617	`#endif /* NFSKERB */`
		618	`}`
		619	`}`
		620	`exit(0);`
		621	`}`
		622
		623	`/*`
		624	`* Return RPC_SUCCESS if server responds.`
		625	`*/`
		626	`enum clnt_stat`
		627	`pingnfsserver(addr, version, sotype)`
		628	`struct sockaddr_in *addr;`
		629	`int version;`
		630	`int sotype;`
		631	`{`
		632	`struct sockaddr_in sin;`
		633	`int tport;`
		634	`CLIENT *clp;`
		635	`int so = RPC_ANYSOCK;`
		636	`enum clnt_stat stat;`
		637	`struct timeval pertry, try;`
		638
		639	`sin = *addr;`
		640
		641	`if ((tport = port_no ? port_no :`
		642	`pmap_getport(&sin, RPCPROG_NFS, version, nfsproto)) == 0) {`
		643	`return rpc_createerr.cf_stat;`
		644	`}`
		645
		646	`sin.sin_port = htons(tport);`
		647
		648	`pertry.tv_sec = 10;`
		649	`pertry.tv_usec = 0;`
		650	`if (sotype == SOCK_STREAM)`
		651	`clp = clnttcp_create(&sin, RPCPROG_NFS, version,`
		652	`&so, 0, 0);`
		653	`else`
		654	`clp = clntudp_create(&sin, RPCPROG_NFS, version,`
		655	`pertry, &so);`
		656	`if (clp == NULL)`
		657	`return rpc_createerr.cf_stat;`
		658
		659	`try.tv_sec = 10;`
		660	`try.tv_usec = 0;`
		661	`stat = clnt_call(clp, NFSPROC_NULL,`
		662	`xdr_void, NULL, xdr_void, NULL, try);`
		663
		664	`clnt_destroy(clp);`
		665
		666	`return stat;`
		667	`}`
		668
		669	`int load_9uid(struct u9fs_args * nfsargsp)`
		670	`{`
		671	`FILE * fd;`
		672	`char line[80], * cp;`
		673	`int nusers, siz, n;`
		674	`struct p9user * p9p, * p9alloc;`
		675
		676	`if( (fd = fopen("/etc/9uid.conf", "r")) == 0 )`
		677	`errx(1, "fopen");`
		678
		679	`siz = 128;`
		680	`if( (p9alloc = malloc(siz*sizeof(struct p9user))) == 0 )`
		681	`errx(1, "malloc");`
		682
		683	`nusers = 0;`
		684	`p9p = p9alloc;`
		685	`while(1) {`
		686	`if( nusers < siz ) {`
		687	`if ( fgets(line, 80, fd) == 0 )`
		688	`break;`
		689	`cp = line;`
		690	`if ( strsep(&cp, " \t") == 0 )`
		691	`errx(1, "bad format in 9uid.conf");`
		692	`p9p->p9_uid = atoi(cp);`
		693	`strncpy(p9p->p9_name, line, U9FS_NAMELEN);`
		694	`nusers++;`
		695	`p9p++;`
		696	`} else {`
		697	`if( (p9p = realloc(p9alloc, 2sizsizeof(struct p9user))) == 0 )`
		698	`errx(1, "realloc");`
		699	`p9alloc = p9p;`
		700	`p9p = p9alloc + siz;`
		701	`siz <<= 1;`
		702	`}`
		703	`}`
		704
		705	`nfsargsp->nusers = nusers;`
		706	`nfsargsp->users = p9alloc;`
		707
		708	`return 0;`
		709	`}`
		710
		711	`int`
		712	`passtokey(char key, char p)`
		713	`{`
		714	`u_char buf[U9FS_NAMELEN], *t;`
		715	`int i, n;`
		716
		717	`n = strlen(p);`
		718	`if(n >= U9FS_NAMELEN)`
		719	`n = U9FS_NAMELEN-1;`
		720	`memset(buf, ' ', 8);`
		721	`t = buf;`
		722	`strncpy((char*)t, p, n);`
		723	`t[n] = '\0';`
		724	`memset(key, 0, U9AUTH_DESKEYLEN);`
		725	`for(;;){`
		726	`for(i = 0; i < U9AUTH_DESKEYLEN; i++)`
		727	`key[i] = (t[i] >> i) + (t[i+1] << (8 - (i+1)));`
		728	`if(n <= 8)`
		729	`return 1;`
		730	`n -= 8;`
		731	`t += 8;`
		732	`if(n < 8){`
		733	`t -= 8 - n;`
		734	`n = 8;`
		735	`}`
		736	`encrypt9(key, t, 8);`
		737	`}`
		738	`return 1; /* not reached */`
		739	`}`
		740
		741	`void load_9key(struct u9fs_args * nfsargsp)`
		742	`{`
		743	`char * p;`
		744
		745	`p = getpass("Plan 9 Password: ");`
		746	`passtokey(nfsargsp->key, p);`
		747	`}`
		748
		749	`void gethostaddr(char * hostp, struct sockaddr_in * saddr)`
		750	`{`
		751	`struct hostent *hp;`
		752	`/*`
		753	`* Handle an internet host address and reverse resolve it if`
		754	`* doing Kerberos.`
		755	`*/`
		756	`if (isdigit(*hostp)) {`
		757	`if ((saddr->sin_addr.s_addr = inet_addr(hostp)) == -1) {`
		758	`warnx("bad net address %s", hostp);`
		759	`}`
		760	`} else if ((hp = gethostbyname(hostp)) != NULL)`
		761	`memmove(&saddr->sin_addr, hp->h_addr,`
		762	`MIN(hp->h_length, sizeof(saddr->sin_addr)));`
		763	`else {`
		764	`warnx("can't get net id for host");`
		765	`}`
		766	`}`
		767
		768	`int`
		769	`getnfsargs(spec, nfsargsp)`
		770	`char *spec;`
		771	`struct u9fs_args *nfsargsp;`
		772	`{`
		773	`register CLIENT *clp;`
		774	`struct hostent *hp;`
		775	`static struct sockaddr_in saddr;`
		776	`#ifdef ISO`
		777	`static struct sockaddr_iso isoaddr;`
		778	`struct iso_addr *isop;`
		779	`int isoflag = 0;`
		780	`#endif`
		781	`struct timeval pertry, try;`
		782	`enum clnt_stat clnt_stat;`
		783	`int so = RPC_ANYSOCK, i, nfsvers, mntvers, orgcnt;`
		784	`char hostp, delimp;`
		785	`#ifdef NFSKERB`
		786	`char *cp;`
		787	`#endif`
		788	`u_short tport;`
		789	`static struct nfhret nfhret;`
		790	`static char nam[MNAMELEN + 1];`
		791
		792	`strncpy(nam, spec, MNAMELEN);`
		793	`nam[MNAMELEN] = '\0';`
		794	`if ((delimp = strchr(spec, '@')) != NULL) {`
		795	`hostp = delimp + 1;`
		796	`} else if ((delimp = strchr(spec, ':')) != NULL) {`
		797	`hostp = spec;`
		798	`spec = delimp + 1;`
		799	`} else {`
		800	`warnx("no <host>:<dirpath> or <dirpath>@<host> spec");`
		801	`return (0);`
		802	`}`
		803	`*delimp = '\0';`
		804	`/*`
		805	`* DUMB!! Until the mount protocol works on iso transport, we must`
		806	`* supply both an iso and an inet address for the host.`
		807	`*/`
		808	`#ifdef ISO`
		809	`if (!strncmp(hostp, "iso=", 4)) {`
		810	`u_short isoport;`
		811
		812	`hostp += 4;`
		813	`isoflag++;`
		814	`if ((delimp = strchr(hostp, '+')) == NULL) {`
		815	`warnx("no iso+inet address");`
		816	`return (0);`
		817	`}`
		818	`*delimp = '\0';`
		819	`if ((isop = iso_addr(hostp)) == NULL) {`
		820	`warnx("bad ISO address");`
		821	`return (0);`
		822	`}`
		823	`memset(&isoaddr, 0, sizeof (isoaddr));`
		824	`memmove(&isoaddr.siso_addr, isop, sizeof (struct iso_addr));`
		825	`isoaddr.siso_len = sizeof (isoaddr);`
		826	`isoaddr.siso_family = AF_ISO;`
		827	`isoaddr.siso_tlen = 2;`
		828	`isoport = htons(NFS_PORT);`
		829	`memmove(TSEL(&isoaddr), &isoport, isoaddr.siso_tlen);`
		830	`hostp = delimp + 1;`
		831	`}`
		832	`#endif /* ISO */`
		833
		834	`gethostaddr(hostp, & saddr);`
		835	`#ifdef NFSKERB`
		836	`if ((nfsargsp->flags & NFSMNT_KERB)) {`
		837	`if ((hp = gethostbyaddr((char *)&saddr.sin_addr.s_addr,`
		838	`sizeof (u_long), AF_INET)) == (struct hostent *)0) {`
		839	`warnx("can't reverse resolve net address");`
		840	`return (0);`
		841	`}`
		842	`memmove(&saddr.sin_addr, hp->h_addr,`
		843	`MIN(hp->h_length, sizeof(saddr.sin_addr)));`
		844	`strncpy(inst, hp->h_name, INST_SZ);`
		845	`inst[INST_SZ - 1] = '\0';`
		846	`if (cp = strchr(inst, '.'))`
		847	`*cp = '\0';`
		848	`}`
		849	`#endif /* NFSKERB */`
		850
		851	`orgcnt = retrycnt;`
		852	`tryagain:`
		853	`if (mountmode == ANY \|\| mountmode == V3) {`
		854	`nfsvers = 3;`
		855	`mntvers = 3;`
		856	`nfsargsp->flags \|= NFSMNT_NFSV3;`
		857	`} else {`
		858	`nfsvers = 2;`
		859	`mntvers = 1;`
		860	`nfsargsp->flags &= ~NFSMNT_NFSV3;`
		861	`}`
		862	`tport = port_no ? port_no : U9FS_PORT;`
		863
		864	`#if 0`
		865	`nfhret.stat = EACCES; /* Mark not yet successful */`
		866	`while (retrycnt > 0) {`
		867	`saddr.sin_family = AF_INET;`
		868	`saddr.sin_port = htons(PMAPPORT);`
		869	`if ((tport = port_no ? port_no :`
		870	`pmap_getport(&saddr, RPCPROG_NFS,`
		871	`nfsvers, nfsproto)) == 0) {`
		872	`if ((opflags & ISBGRND) == 0)`
		873	`clnt_pcreateerror("NFS Portmap");`
		874	`} else {`
		875	`/*`
		876	`* First ping the nfs server to see if it supports`
		877	`* the version of the protocol we want to use.`
		878	`*/`
		879	`clnt_stat = pingnfsserver(&saddr, nfsvers,`
		880	`nfsargsp->sotype);`
		881	`if (clnt_stat == RPC_PROGVERSMISMATCH) {`
		882	`if (mountmode == ANY) {`
		883	`mountmode = V2;`
		884	`goto tryagain;`
		885	`} else {`
		886	`errx(1, "can't contact NFS server");`
		887	`}`
		888	`}`
		889	`saddr.sin_port = 0;`
		890	`pertry.tv_sec = 10;`
		891	`pertry.tv_usec = 0;`
		892	`if (mnttcp_ok && nfsargsp->sotype == SOCK_STREAM)`
		893	`clp = clnttcp_create(&saddr, RPCPROG_MNT, mntvers,`
		894	`&so, 0, 0);`
		895	`else`
		896	`clp = clntudp_create(&saddr, RPCPROG_MNT, mntvers,`
		897	`pertry, &so);`
		898	`if (clp == NULL) {`
		899	`if ((opflags & ISBGRND) == 0)`
		900	`clnt_pcreateerror("Cannot MNT RPC");`
		901	`} else {`
		902	`clp->cl_auth = authunix_create_default();`
		903	`try.tv_sec = 10;`
		904	`try.tv_usec = 0;`
		905	`if (nfsargsp->flags & NFSMNT_KERB)`
		906	`nfhret.auth = RPCAUTH_KERB4;`
		907	`else`
		908	`nfhret.auth = RPCAUTH_UNIX;`
		909	`nfhret.vers = mntvers;`
		910	`clnt_stat = clnt_call(clp, RPCMNT_MOUNT,`
		911	`xdr_dir, spec, xdr_fh, &nfhret, try);`
		912	`if (clnt_stat != RPC_SUCCESS) {`
		913	`if (clnt_stat == RPC_PROGVERSMISMATCH) {`
		914	`if (mountmode == ANY) {`
		915	`mountmode = V2;`
		916	`goto tryagain;`
		917	`} else {`
		918	`errx(1, "%s",`
		919	`clnt_sperror(clp, "MNT RPC"));`
		920	`}`
		921	`}`
		922	`if ((opflags & ISBGRND) == 0)`
		923	`warnx("%s", clnt_sperror(clp,`
		924	`"bad MNT RPC"));`
		925	`} else {`
		926	`auth_destroy(clp->cl_auth);`
		927	`clnt_destroy(clp);`
		928	`retrycnt = 0;`
		929	`}`
		930	`}`
		931	`}`
		932	`if (--retrycnt > 0) {`
		933	`if (opflags & BGRND) {`
		934	`opflags &= ~BGRND;`
		935	`if ((i = fork())) {`
		936	`if (i == -1)`
		937	`err(1, "nqnfs 2");`
		938	`exit(0);`
		939	`}`
		940	`(void) setsid();`
		941	`(void) close(STDIN_FILENO);`
		942	`(void) close(STDOUT_FILENO);`
		943	`(void) close(STDERR_FILENO);`
		944	`(void) chdir("/");`
		945	`opflags \|= ISBGRND;`
		946	`}`
		947	`sleep(60);`
		948	`}`
		949	`}`
		950	`if (nfhret.stat) {`
		951	`if (opflags & ISBGRND)`
		952	`exit(1);`
		953	`warnx("can't access %s: %s", spec, strerror(nfhret.stat));`
		954	`return (0);`
		955	`}`
		956	`#endif`
		957	`saddr.sin_family = AF_INET;`
		958	`saddr.sin_port = htons(tport);`
		959	`#ifdef ISO`
		960	`if (isoflag) {`
		961	`nfsargsp->addr = (struct sockaddr *) &isoaddr;`
		962	`nfsargsp->addrlen = sizeof (isoaddr);`
		963	`} else`
		964	`#endif /* ISO */`
		965	`{`
		966	`nfsargsp->addr = (struct sockaddr *) &saddr;`
		967	`nfsargsp->addrlen = sizeof (saddr);`
		968	`}`
		969	`#if 0`
		970	`nfsargsp->fh = nfhret.nfh;`
		971	`#endif`
		972	`nfsargsp->fhsize = nfhret.fhsize;`
		973	`nfsargsp->hostname = nam;`
		974
		975	`load_9key(nfsargsp);`
		976	`if( load_9uid(nfsargsp) )`
		977	`errx(1, "can't load 9uid.conf");`
		978
		979	`return (1);`
		980	`}`
		981
		982	`/*`
		983	`* xdr routines for mount rpc's`
		984	`*/`
		985	`int`
		986	`xdr_dir(xdrsp, dirp)`
		987	`XDR *xdrsp;`
		988	`char *dirp;`
		989	`{`
		990	`return (xdr_string(xdrsp, &dirp, RPCMNT_PATHLEN));`
		991	`}`
		992
		993	`int`
		994	`xdr_fh(xdrsp, np)`
		995	`XDR *xdrsp;`
		996	`register struct nfhret *np;`
		997	`{`
		998	`register int i;`
		999	`long auth, authcnt, authfnd = 0;`
		1000
		1001	`if (!xdr_u_long(xdrsp, &np->stat))`
		1002	`return (0);`
		1003	`if (np->stat)`
		1004	`return (1);`
		1005	`switch (np->vers) {`
		1006	`case 1:`
		1007	`np->fhsize = NFSX_V2FH;`
		1008	`return (xdr_opaque(xdrsp, (caddr_t)np->nfh, NFSX_V2FH));`
		1009	`case 3:`
		1010	`if (!xdr_long(xdrsp, &np->fhsize))`
		1011	`return (0);`
		1012	`if (np->fhsize <= 0 \|\| np->fhsize > NFSX_V3FHMAX)`
		1013	`return (0);`
		1014	`if (!xdr_opaque(xdrsp, (caddr_t)np->nfh, np->fhsize))`
		1015	`return (0);`
		1016	`if (!xdr_long(xdrsp, &authcnt))`
		1017	`return (0);`
		1018	`for (i = 0; i < authcnt; i++) {`
		1019	`if (!xdr_long(xdrsp, &auth))`
		1020	`return (0);`
		1021	`if (auth == np->auth)`
		1022	`authfnd++;`
		1023	`}`
		1024	`/*`
		1025	`* Some servers, such as DEC's OSF/1 return a nil authenticator`
		1026	`* list to indicate RPCAUTH_UNIX.`
		1027	`*/`
		1028	`if (!authfnd && (authcnt > 0 \|\| np->auth != RPCAUTH_UNIX))`
		1029	`np->stat = EAUTH;`
		1030	`return (1);`
		1031	`};`
		1032	`return (0);`
		1033	`}`
		1034
		1035	`void`
		1036	`usage()`
		1037	`{`
		1038	`(void)fprintf(stderr, "%s\n%s\n%s\n%s\n",`
		1039	`"usage: mount_nfs [-23KNPTUbcdilqs] [-D deadthresh] [-I readdirsize]",`
		1040	`" [-L leaseterm] [-R retrycnt] [-a maxreadahead]",`
		1041	`" [-g maxgroups] [-m realm] [-o options] [-r readsize]",`
		1042	`" [-t timeout] [-w writesize] [-x retrans] rhost:path node");`
		1043	`exit(1);`
		1044	`}`
		1045

Subversion Repositories planix.SVN

(root)/os/branches/planix-v0/sys/src/cmd/unix/9pfreebsd/mount_9fs/mount_9fs.c – Rev 2