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-rw-r--r--source3/client/cifs.upcall.c391
-rw-r--r--source3/client/cifs_spnego.h46
-rw-r--r--source3/client/mount.cifs.c1539
-rw-r--r--source3/client/mount.h38
-rw-r--r--source3/client/mtab.c220
-rw-r--r--source3/client/umount.cifs.c405
6 files changed, 0 insertions, 2639 deletions
diff --git a/source3/client/cifs.upcall.c b/source3/client/cifs.upcall.c
deleted file mode 100644
index 4110de35fd..0000000000
--- a/source3/client/cifs.upcall.c
+++ /dev/null
@@ -1,391 +0,0 @@
-/*
-* CIFS user-space helper.
-* Copyright (C) Igor Mammedov (niallain@gmail.com) 2007
-*
-* Used by /sbin/request-key for handling
-* cifs upcall for kerberos authorization of access to share and
-* cifs upcall for DFS srver name resolving (IPv4/IPv6 aware).
-* You should have keyutils installed and add something like the
-* following lines to /etc/request-key.conf file:
-
-create cifs.spnego * * /usr/local/sbin/cifs.upcall %k
-create dns_resolver * * /usr/local/sbin/cifs.upcall %k
-
-* This program is free software; you can redistribute it and/or modify
-* it under the terms of the GNU General Public License as published by
-* the Free Software Foundation; either version 2 of the License, or
-* (at your option) any later version.
-* This program is distributed in the hope that it will be useful,
-* but WITHOUT ANY WARRANTY; without even the implied warranty of
-* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-* GNU General Public License for more details.
-* You should have received a copy of the GNU General Public License
-* along with this program; if not, write to the Free Software
-* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-*/
-
-#include "includes.h"
-#include <keyutils.h>
-
-#include "cifs_spnego.h"
-
-const char *CIFSSPNEGO_VERSION = "1.2";
-static const char *prog = "cifs.upcall";
-typedef enum _secType {
- NONE = 0,
- KRB5,
- MS_KRB5
-} secType_t;
-
-/*
- * Prepares AP-REQ data for mechToken and gets session key
- * Uses credentials from cache. It will not ask for password
- * you should receive credentials for yuor name manually using
- * kinit or whatever you wish.
- *
- * in:
- * oid - string with OID/ Could be OID_KERBEROS5
- * or OID_KERBEROS5_OLD
- * principal - Service name.
- * Could be "cifs/FQDN" for KRB5 OID
- * or for MS_KRB5 OID style server principal
- * like "pdc$@YOUR.REALM.NAME"
- *
- * out:
- * secblob - pointer for spnego wrapped AP-REQ data to be stored
- * sess_key- pointer for SessionKey data to be stored
- *
- * ret: 0 - success, others - failure
-*/
-static int
-handle_krb5_mech(const char *oid, const char *principal,
- DATA_BLOB * secblob, DATA_BLOB * sess_key)
-{
- int retval;
- DATA_BLOB tkt, tkt_wrapped;
-
- /* get a kerberos ticket for the service and extract the session key */
- retval = cli_krb5_get_ticket(principal, 0,
- &tkt, sess_key, 0, NULL, NULL);
-
- if (retval)
- return retval;
-
- /* wrap that up in a nice GSS-API wrapping */
- tkt_wrapped = spnego_gen_krb5_wrap(tkt, TOK_ID_KRB_AP_REQ);
-
- /* and wrap that in a shiny SPNEGO wrapper */
- *secblob = gen_negTokenInit(oid, tkt_wrapped);
-
- data_blob_free(&tkt_wrapped);
- data_blob_free(&tkt);
- return retval;
-}
-
-#define DKD_HAVE_HOSTNAME 1
-#define DKD_HAVE_VERSION 2
-#define DKD_HAVE_SEC 4
-#define DKD_HAVE_IPV4 8
-#define DKD_HAVE_IPV6 16
-#define DKD_HAVE_UID 32
-#define DKD_MUSTHAVE_SET (DKD_HAVE_HOSTNAME|DKD_HAVE_VERSION|DKD_HAVE_SEC)
-
-static int
-decode_key_description(const char *desc, int *ver, secType_t * sec,
- char **hostname, uid_t * uid)
-{
- int retval = 0;
- char *pos;
- const char *tkn = desc;
-
- do {
- pos = index(tkn, ';');
- if (strncmp(tkn, "host=", 5) == 0) {
- int len;
-
- if (pos == NULL) {
- len = strlen(tkn);
- } else {
- len = pos - tkn;
- }
- len -= 4;
- SAFE_FREE(*hostname);
- *hostname = SMB_XMALLOC_ARRAY(char, len);
- strlcpy(*hostname, tkn + 5, len);
- retval |= DKD_HAVE_HOSTNAME;
- } else if (strncmp(tkn, "ipv4=", 5) == 0) {
- /* BB: do we need it if we have hostname already? */
- } else if (strncmp(tkn, "ipv6=", 5) == 0) {
- /* BB: do we need it if we have hostname already? */
- } else if (strncmp(tkn, "sec=", 4) == 0) {
- if (strncmp(tkn + 4, "krb5", 4) == 0) {
- retval |= DKD_HAVE_SEC;
- *sec = KRB5;
- } else if (strncmp(tkn + 4, "mskrb5", 6) == 0) {
- retval |= DKD_HAVE_SEC;
- *sec = MS_KRB5;
- }
- } else if (strncmp(tkn, "uid=", 4) == 0) {
- errno = 0;
- *uid = strtol(tkn + 4, NULL, 16);
- if (errno != 0) {
- syslog(LOG_WARNING, "Invalid uid format: %s",
- strerror(errno));
- return 1;
- } else {
- retval |= DKD_HAVE_UID;
- }
- } else if (strncmp(tkn, "ver=", 4) == 0) { /* if version */
- errno = 0;
- *ver = strtol(tkn + 4, NULL, 16);
- if (errno != 0) {
- syslog(LOG_WARNING,
- "Invalid version format: %s",
- strerror(errno));
- return 1;
- } else {
- retval |= DKD_HAVE_VERSION;
- }
- }
- if (pos == NULL)
- break;
- tkn = pos + 1;
- } while (tkn);
- return retval;
-}
-
-static int
-cifs_resolver(const key_serial_t key, const char *key_descr)
-{
- int c;
- struct addrinfo *addr;
- char ip[INET6_ADDRSTRLEN];
- void *p;
- const char *keyend = key_descr;
- /* skip next 4 ';' delimiters to get to description */
- for (c = 1; c <= 4; c++) {
- keyend = index(keyend+1, ';');
- if (!keyend) {
- syslog(LOG_WARNING, "invalid key description: %s",
- key_descr);
- return 1;
- }
- }
- keyend++;
-
- /* resolve name to ip */
- c = getaddrinfo(keyend, NULL, NULL, &addr);
- if (c) {
- syslog(LOG_WARNING, "unable to resolve hostname: %s [%s]",
- keyend, gai_strerror(c));
- return 1;
- }
-
- /* conver ip to string form */
- if (addr->ai_family == AF_INET) {
- p = &(((struct sockaddr_in *)addr->ai_addr)->sin_addr);
- } else {
- p = &(((struct sockaddr_in6 *)addr->ai_addr)->sin6_addr);
- }
- if (!inet_ntop(addr->ai_family, p, ip, sizeof(ip))) {
- syslog(LOG_WARNING, "%s: inet_ntop: %s",
- __FUNCTION__, strerror(errno));
- freeaddrinfo(addr);
- return 1;
- }
-
- /* setup key */
- c = keyctl_instantiate(key, ip, strlen(ip)+1, 0);
- if (c == -1) {
- syslog(LOG_WARNING, "%s: keyctl_instantiate: %s",
- __FUNCTION__, strerror(errno));
- freeaddrinfo(addr);
- return 1;
- }
-
- freeaddrinfo(addr);
- return 0;
-}
-
-static void
-usage(void)
-{
- syslog(LOG_WARNING, "Usage: %s [-c] [-v] key_serial", prog);
- fprintf(stderr, "Usage: %s [-c] [-v] key_serial\n", prog);
-}
-
-int main(const int argc, char *const argv[])
-{
- struct cifs_spnego_msg *keydata = NULL;
- DATA_BLOB secblob = data_blob_null;
- DATA_BLOB sess_key = data_blob_null;
- secType_t sectype = NONE;
- key_serial_t key = 0;
- size_t datalen;
- long rc = 1;
- uid_t uid = 0;
- int kernel_upcall_version = 0;
- int c, use_cifs_service_prefix = 0;
- char *buf, *hostname = NULL;
- const char *oid;
-
- openlog(prog, 0, LOG_DAEMON);
-
- while ((c = getopt(argc, argv, "cv")) != -1) {
- switch (c) {
- case 'c':{
- use_cifs_service_prefix = 1;
- break;
- }
- case 'v':{
- printf("version: %s\n", CIFSSPNEGO_VERSION);
- goto out;
- }
- default:{
- syslog(LOG_WARNING, "unknown option: %c", c);
- goto out;
- }
- }
- }
-
- /* is there a key? */
- if (argc <= optind) {
- usage();
- goto out;
- }
-
- /* get key and keyring values */
- errno = 0;
- key = strtol(argv[optind], NULL, 10);
- if (errno != 0) {
- key = 0;
- syslog(LOG_WARNING, "Invalid key format: %s", strerror(errno));
- goto out;
- }
-
- rc = keyctl_describe_alloc(key, &buf);
- if (rc == -1) {
- syslog(LOG_WARNING, "keyctl_describe_alloc failed: %s",
- strerror(errno));
- rc = 1;
- goto out;
- }
-
- if ((strncmp(buf, "cifs.resolver", sizeof("cifs.resolver")-1) == 0) ||
- (strncmp(buf, "dns_resolver", sizeof("dns_resolver")-1) == 0)) {
- rc = cifs_resolver(key, buf);
- goto out;
- }
-
- rc = decode_key_description(buf, &kernel_upcall_version, &sectype,
- &hostname, &uid);
- if ((rc & DKD_MUSTHAVE_SET) != DKD_MUSTHAVE_SET) {
- syslog(LOG_WARNING,
- "unable to get from description necessary params");
- rc = 1;
- SAFE_FREE(buf);
- goto out;
- }
- SAFE_FREE(buf);
-
- if (kernel_upcall_version > CIFS_SPNEGO_UPCALL_VERSION) {
- syslog(LOG_WARNING,
- "incompatible kernel upcall version: 0x%x",
- kernel_upcall_version);
- rc = 1;
- goto out;
- }
-
- if (rc & DKD_HAVE_UID) {
- rc = setuid(uid);
- if (rc == -1) {
- syslog(LOG_WARNING, "setuid: %s", strerror(errno));
- goto out;
- }
- }
-
- /* BB: someday upcall SPNEGO blob could be checked here to decide
- * what mech to use */
-
- // do mech specific authorization
- switch (sectype) {
- case MS_KRB5:
- case KRB5:{
- char *princ;
- size_t len;
-
- /* for "cifs/" service name + terminating 0 */
- len = strlen(hostname) + 5 + 1;
- princ = SMB_XMALLOC_ARRAY(char, len);
- if (!princ) {
- rc = 1;
- break;
- }
- if (use_cifs_service_prefix) {
- strlcpy(princ, "cifs/", len);
- } else {
- strlcpy(princ, "host/", len);
- }
- strlcpy(princ + 5, hostname, len - 5);
-
- if (sectype == MS_KRB5)
- oid = OID_KERBEROS5_OLD;
- else
- oid = OID_KERBEROS5;
-
- rc = handle_krb5_mech(oid, princ, &secblob, &sess_key);
- SAFE_FREE(princ);
- break;
- }
- default:{
- syslog(LOG_WARNING, "sectype: %d is not implemented",
- sectype);
- rc = 1;
- break;
- }
- }
-
- if (rc) {
- goto out;
- }
-
- /* pack SecurityBLob and SessionKey into downcall packet */
- datalen =
- sizeof(struct cifs_spnego_msg) + secblob.length + sess_key.length;
- keydata = (struct cifs_spnego_msg*)SMB_XMALLOC_ARRAY(char, datalen);
- if (!keydata) {
- rc = 1;
- goto out;
- }
- keydata->version = kernel_upcall_version;
- keydata->flags = 0;
- keydata->sesskey_len = sess_key.length;
- keydata->secblob_len = secblob.length;
- memcpy(&(keydata->data), sess_key.data, sess_key.length);
- memcpy(&(keydata->data) + keydata->sesskey_len,
- secblob.data, secblob.length);
-
- /* setup key */
- rc = keyctl_instantiate(key, keydata, datalen, 0);
- if (rc == -1) {
- syslog(LOG_WARNING, "keyctl_instantiate: %s", strerror(errno));
- goto out;
- }
-
- /* BB: maybe we need use timeout for key: for example no more then
- * ticket lifietime? */
- /* keyctl_set_timeout( key, 60); */
-out:
- /*
- * on error, negatively instantiate the key ourselves so that we can
- * make sure the kernel doesn't hang it off of a searchable keyring
- * and interfere with the next attempt to instantiate the key.
- */
- if (rc != 0 && key == 0)
- keyctl_negate(key, 1, KEY_REQKEY_DEFL_DEFAULT);
- data_blob_free(&secblob);
- data_blob_free(&sess_key);
- SAFE_FREE(hostname);
- SAFE_FREE(keydata);
- return rc;
-}
diff --git a/source3/client/cifs_spnego.h b/source3/client/cifs_spnego.h
deleted file mode 100644
index f8753a7d59..0000000000
--- a/source3/client/cifs_spnego.h
+++ /dev/null
@@ -1,46 +0,0 @@
-/*
- * fs/cifs/cifs_spnego.h -- SPNEGO upcall management for CIFS
- *
- * Copyright (c) 2007 Red Hat, Inc.
- * Author(s): Jeff Layton (jlayton@redhat.com)
- * Steve French (sfrench@us.ibm.com)
- *
- * This library is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License as published
- * by the Free Software Foundation; either version 2.1 of the License, or
- * (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
- * the GNU Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#ifndef _CIFS_SPNEGO_H
-#define _CIFS_SPNEGO_H
-
-#define CIFS_SPNEGO_UPCALL_VERSION 2
-
-/*
- * The version field should always be set to CIFS_SPNEGO_UPCALL_VERSION.
- * The flags field is for future use. The request-key callout should set
- * sesskey_len and secblob_len, and then concatenate the SessKey+SecBlob
- * and stuff it in the data field.
- */
-struct cifs_spnego_msg {
- uint32_t version;
- uint32_t flags;
- uint32_t sesskey_len;
- uint32_t secblob_len;
- uint8_t data[1];
-};
-
-#ifdef __KERNEL__
-extern struct key_type cifs_spnego_key_type;
-#endif /* KERNEL */
-
-#endif /* _CIFS_SPNEGO_H */
diff --git a/source3/client/mount.cifs.c b/source3/client/mount.cifs.c
deleted file mode 100644
index a5d99dc3d9..0000000000
--- a/source3/client/mount.cifs.c
+++ /dev/null
@@ -1,1539 +0,0 @@
-/*
- Mount helper utility for Linux CIFS VFS (virtual filesystem) client
- Copyright (C) 2003,2008 Steve French (sfrench@us.ibm.com)
- Copyright (C) 2008 Jeremy Allison (jra@samba.org)
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 3 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>. */
-
-#ifndef _GNU_SOURCE
-#define _GNU_SOURCE
-#endif
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <unistd.h>
-#include <pwd.h>
-#include <grp.h>
-#include <ctype.h>
-#include <sys/types.h>
-#include <sys/mount.h>
-#include <sys/stat.h>
-#include <sys/utsname.h>
-#include <sys/socket.h>
-#include <arpa/inet.h>
-#include <getopt.h>
-#include <errno.h>
-#include <netdb.h>
-#include <string.h>
-#include <mntent.h>
-#include <fcntl.h>
-#include <limits.h>
-#include "mount.h"
-
-#define MOUNT_CIFS_VERSION_MAJOR "1"
-#define MOUNT_CIFS_VERSION_MINOR "12"
-
-#ifndef MOUNT_CIFS_VENDOR_SUFFIX
- #ifdef _SAMBA_BUILD_
- #include "include/version.h"
- #ifdef SAMBA_VERSION_VENDOR_SUFFIX
- #define MOUNT_CIFS_VENDOR_SUFFIX "-"SAMBA_VERSION_OFFICIAL_STRING"-"SAMBA_VERSION_VENDOR_SUFFIX
- #else
- #define MOUNT_CIFS_VENDOR_SUFFIX "-"SAMBA_VERSION_OFFICIAL_STRING
- #endif /* SAMBA_VERSION_OFFICIAL_STRING and SAMBA_VERSION_VENDOR_SUFFIX */
- #else
- #define MOUNT_CIFS_VENDOR_SUFFIX ""
- #endif /* _SAMBA_BUILD_ */
-#endif /* MOUNT_CIFS_VENDOR_SUFFIX */
-
-#ifdef _SAMBA_BUILD_
-#include "include/config.h"
-#endif
-
-#ifndef MS_MOVE
-#define MS_MOVE 8192
-#endif
-
-#ifndef MS_BIND
-#define MS_BIND 4096
-#endif
-
-#define MAX_UNC_LEN 1024
-
-#define CONST_DISCARD(type, ptr) ((type) ((void *) (ptr)))
-
-#ifndef SAFE_FREE
-#define SAFE_FREE(x) do { if ((x) != NULL) {free(x); x=NULL;} } while(0)
-#endif
-
-#define MOUNT_PASSWD_SIZE 128
-#define DOMAIN_SIZE 64
-
-/* currently maximum length of IPv6 address string */
-#define MAX_ADDRESS_LEN INET6_ADDRSTRLEN
-
-const char *thisprogram;
-int verboseflag = 0;
-int fakemnt = 0;
-static int got_password = 0;
-static int got_user = 0;
-static int got_domain = 0;
-static int got_ip = 0;
-static int got_unc = 0;
-static int got_uid = 0;
-static int got_gid = 0;
-static char * user_name = NULL;
-static char * mountpassword = NULL;
-char * domain_name = NULL;
-char * prefixpath = NULL;
-
-/* glibc doesn't have strlcpy, strlcat. Ensure we do. JRA. We
- * don't link to libreplace so need them here. */
-
-/* like strncpy but does not 0 fill the buffer and always null
- * terminates. bufsize is the size of the destination buffer */
-
-#ifndef HAVE_STRLCPY
-static size_t strlcpy(char *d, const char *s, size_t bufsize)
-{
- size_t len = strlen(s);
- size_t ret = len;
- if (bufsize <= 0) return 0;
- if (len >= bufsize) len = bufsize-1;
- memcpy(d, s, len);
- d[len] = 0;
- return ret;
-}
-#endif
-
-/* like strncat but does not 0 fill the buffer and always null
- * terminates. bufsize is the length of the buffer, which should
- * be one more than the maximum resulting string length */
-
-#ifndef HAVE_STRLCAT
-static size_t strlcat(char *d, const char *s, size_t bufsize)
-{
- size_t len1 = strlen(d);
- size_t len2 = strlen(s);
- size_t ret = len1 + len2;
-
- if (len1+len2 >= bufsize) {
- if (bufsize < (len1+1)) {
- return ret;
- }
- len2 = bufsize - (len1+1);
- }
- if (len2 > 0) {
- memcpy(d+len1, s, len2);
- d[len1+len2] = 0;
- }
- return ret;
-}
-#endif
-
-/* BB finish BB
-
- cifs_umount
- open nofollow - avoid symlink exposure?
- get owner of dir see if matches self or if root
- call system(umount argv) etc.
-
-BB end finish BB */
-
-static char * check_for_domain(char **);
-
-
-static void mount_cifs_usage(void)
-{
- printf("\nUsage: %s <remotetarget> <dir> -o <options>\n", thisprogram);
- printf("\nMount the remote target, specified as a UNC name,");
- printf(" to a local directory.\n\nOptions:\n");
- printf("\tuser=<arg>\n\tpass=<arg>\n\tdom=<arg>\n");
- printf("\nLess commonly used options:");
- printf("\n\tcredentials=<filename>,guest,perm,noperm,setuids,nosetuids,rw,ro,");
- printf("\n\tsep=<char>,iocharset=<codepage>,suid,nosuid,exec,noexec,serverino,");
- printf("\n\tmapchars,nomapchars,nolock,servernetbiosname=<SRV_RFC1001NAME>");
- printf("\n\tdirectio,nounix,cifsacl,sec=<authentication mechanism>,sign");
- printf("\n\nOptions not needed for servers supporting CIFS Unix extensions");
- printf("\n\t(e.g. unneeded for mounts to most Samba versions):");
- printf("\n\tuid=<uid>,gid=<gid>,dir_mode=<mode>,file_mode=<mode>,sfu");
- printf("\n\nRarely used options:");
- printf("\n\tport=<tcpport>,rsize=<size>,wsize=<size>,unc=<unc_name>,ip=<ip_address>,");
- printf("\n\tdev,nodev,nouser_xattr,netbiosname=<OUR_RFC1001NAME>,hard,soft,intr,");
- printf("\n\tnointr,ignorecase,noposixpaths,noacl,prefixpath=<path>,nobrl");
- printf("\n\tin6_addr");
- printf("\n\nOptions are described in more detail in the manual page");
- printf("\n\tman 8 mount.cifs\n");
- printf("\nTo display the version number of the mount helper:");
- printf("\n\t%s -V\n",thisprogram);
-
- SAFE_FREE(mountpassword);
-}
-
-/* caller frees username if necessary */
-static char * getusername(void) {
- char *username = NULL;
- struct passwd *password = getpwuid(getuid());
-
- if (password) {
- username = password->pw_name;
- }
- return username;
-}
-
-static int open_cred_file(char * file_name)
-{
- char * line_buf;
- char * temp_val;
- FILE * fs;
- int i, length;
- fs = fopen(file_name,"r");
- if(fs == NULL)
- return errno;
- line_buf = (char *)malloc(4096);
- if(line_buf == NULL) {
- fclose(fs);
- return ENOMEM;
- }
-
- while(fgets(line_buf,4096,fs)) {
- /* parse line from credential file */
-
- /* eat leading white space */
- for(i=0;i<4086;i++) {
- if((line_buf[i] != ' ') && (line_buf[i] != '\t'))
- break;
- /* if whitespace - skip past it */
- }
- if (strncasecmp("username",line_buf+i,8) == 0) {
- temp_val = strchr(line_buf + i,'=');
- if(temp_val) {
- /* go past equals sign */
- temp_val++;
- for(length = 0;length<4087;length++) {
- if ((temp_val[length] == '\n')
- || (temp_val[length] == '\0')) {
- temp_val[length] = '\0';
- break;
- }
- }
- if(length > 4086) {
- printf("mount.cifs failed due to malformed username in credentials file");
- memset(line_buf,0,4096);
- exit(EX_USAGE);
- } else {
- got_user = 1;
- user_name = (char *)calloc(1 + length,1);
- /* BB adding free of user_name string before exit,
- not really necessary but would be cleaner */
- strlcpy(user_name,temp_val, length+1);
- }
- }
- } else if (strncasecmp("password",line_buf+i,8) == 0) {
- temp_val = strchr(line_buf+i,'=');
- if(temp_val) {
- /* go past equals sign */
- temp_val++;
- for(length = 0;length<MOUNT_PASSWD_SIZE+1;length++) {
- if ((temp_val[length] == '\n')
- || (temp_val[length] == '\0')) {
- temp_val[length] = '\0';
- break;
- }
- }
- if(length > MOUNT_PASSWD_SIZE) {
- printf("mount.cifs failed: password in credentials file too long\n");
- memset(line_buf,0, 4096);
- exit(EX_USAGE);
- } else {
- if(mountpassword == NULL) {
- mountpassword = (char *)calloc(MOUNT_PASSWD_SIZE+1,1);
- } else
- memset(mountpassword,0,MOUNT_PASSWD_SIZE);
- if(mountpassword) {
- strlcpy(mountpassword,temp_val,MOUNT_PASSWD_SIZE+1);
- got_password = 1;
- }
- }
- }
- } else if (strncasecmp("domain",line_buf+i,6) == 0) {
- temp_val = strchr(line_buf+i,'=');
- if(temp_val) {
- /* go past equals sign */
- temp_val++;
- if(verboseflag)
- printf("\nDomain %s\n",temp_val);
- for(length = 0;length<DOMAIN_SIZE+1;length++) {
- if ((temp_val[length] == '\n')
- || (temp_val[length] == '\0')) {
- temp_val[length] = '\0';
- break;
- }
- }
- if(length > DOMAIN_SIZE) {
- printf("mount.cifs failed: domain in credentials file too long\n");
- exit(EX_USAGE);
- } else {
- if(domain_name == NULL) {
- domain_name = (char *)calloc(DOMAIN_SIZE+1,1);
- } else
- memset(domain_name,0,DOMAIN_SIZE);
- if(domain_name) {
- strlcpy(domain_name,temp_val,DOMAIN_SIZE+1);
- got_domain = 1;
- }
- }
- }
- }
-
- }
- fclose(fs);
- SAFE_FREE(line_buf);
- return 0;
-}
-
-static int get_password_from_file(int file_descript, char * filename)
-{
- int rc = 0;
- int i;
- char c;
-
- if(mountpassword == NULL)
- mountpassword = (char *)calloc(MOUNT_PASSWD_SIZE+1,1);
- else
- memset(mountpassword, 0, MOUNT_PASSWD_SIZE);
-
- if (mountpassword == NULL) {
- printf("malloc failed\n");
- exit(EX_SYSERR);
- }
-
- if(filename != NULL) {
- file_descript = open(filename, O_RDONLY);
- if(file_descript < 0) {
- printf("mount.cifs failed. %s attempting to open password file %s\n",
- strerror(errno),filename);
- exit(EX_SYSERR);
- }
- }
- /* else file already open and fd provided */
-
- for(i=0;i<MOUNT_PASSWD_SIZE;i++) {
- rc = read(file_descript,&c,1);
- if(rc < 0) {
- printf("mount.cifs failed. Error %s reading password file\n",strerror(errno));
- if(filename != NULL)
- close(file_descript);
- exit(EX_SYSERR);
- } else if(rc == 0) {
- if(mountpassword[0] == 0) {
- if(verboseflag)
- printf("\nWarning: null password used since cifs password file empty");
- }
- break;
- } else /* read valid character */ {
- if((c == 0) || (c == '\n')) {
- mountpassword[i] = '\0';
- break;
- } else
- mountpassword[i] = c;
- }
- }
- if((i == MOUNT_PASSWD_SIZE) && (verboseflag)) {
- printf("\nWarning: password longer than %d characters specified in cifs password file",
- MOUNT_PASSWD_SIZE);
- }
- got_password = 1;
- if(filename != NULL) {
- close(file_descript);
- }
-
- return rc;
-}
-
-static int parse_options(char ** optionsp, int * filesys_flags)
-{
- const char * data;
- char * percent_char = NULL;
- char * value = NULL;
- char * next_keyword = NULL;
- char * out = NULL;
- int out_len = 0;
- int word_len;
- int rc = 0;
- char user[32];
- char group[32];
-
- if (!optionsp || !*optionsp)
- return 1;
- data = *optionsp;
-
- if(verboseflag)
- printf("parsing options: %s\n", data);
-
- /* BB fixme check for separator override BB */
-
- if (getuid()) {
- got_uid = 1;
- snprintf(user,sizeof(user),"%u",getuid());
- got_gid = 1;
- snprintf(group,sizeof(group),"%u",getgid());
- }
-
-/* while ((data = strsep(&options, ",")) != NULL) { */
- while(data != NULL) {
- /* check if ends with trailing comma */
- if(*data == 0)
- break;
-
- /* format is keyword=value,keyword2=value2,keyword3=value3 etc.) */
- /* data = next keyword */
- /* value = next value ie stuff after equal sign */
-
- next_keyword = strchr(data,','); /* BB handle sep= */
-
- /* temporarily null terminate end of keyword=value pair */
- if(next_keyword)
- *next_keyword++ = 0;
-
- /* temporarily null terminate keyword to make keyword and value distinct */
- if ((value = strchr(data, '=')) != NULL) {
- *value = '\0';
- value++;
- }
-
- if (strncmp(data, "users",5) == 0) {
- if(!value || !*value) {
- goto nocopy;
- }
- } else if (strncmp(data, "user_xattr",10) == 0) {
- /* do nothing - need to skip so not parsed as user name */
- } else if (strncmp(data, "user", 4) == 0) {
-
- if (!value || !*value) {
- if(data[4] == '\0') {
- if(verboseflag)
- printf("\nskipping empty user mount parameter\n");
- /* remove the parm since it would otherwise be confusing
- to the kernel code which would think it was a real username */
- goto nocopy;
- } else {
- printf("username specified with no parameter\n");
- SAFE_FREE(out);
- return 1; /* needs_arg; */
- }
- } else {
- if (strnlen(value, 260) < 260) {
- got_user=1;
- percent_char = strchr(value,'%');
- if(percent_char) {
- *percent_char = ',';
- if(mountpassword == NULL)
- mountpassword = (char *)calloc(MOUNT_PASSWD_SIZE+1,1);
- if(mountpassword) {
- if(got_password)
- printf("\nmount.cifs warning - password specified twice\n");
- got_password = 1;
- percent_char++;
- strlcpy(mountpassword, percent_char,MOUNT_PASSWD_SIZE+1);
- /* remove password from username */
- while(*percent_char != 0) {
- *percent_char = ',';
- percent_char++;
- }
- }
- }
- /* this is only case in which the user
- name buf is not malloc - so we have to
- check for domain name embedded within
- the user name here since the later
- call to check_for_domain will not be
- invoked */
- domain_name = check_for_domain(&value);
- } else {
- printf("username too long\n");
- SAFE_FREE(out);
- return 1;
- }
- }
- } else if (strncmp(data, "pass", 4) == 0) {
- if (!value || !*value) {
- if(got_password) {
- printf("\npassword specified twice, ignoring second\n");
- } else
- got_password = 1;
- } else if (strnlen(value, MOUNT_PASSWD_SIZE) < MOUNT_PASSWD_SIZE) {
- if(got_password)
- printf("\nmount.cifs warning - password specified twice\n");
- got_password = 1;
- } else {
- printf("password too long\n");
- SAFE_FREE(out);
- return 1;
- }
- } else if (strncmp(data, "sec", 3) == 0) {
- if (value) {
- if (!strncmp(value, "none", 4) ||
- !strncmp(value, "krb5", 4))
- got_password = 1;
- }
- } else if (strncmp(data, "ip", 2) == 0) {
- if (!value || !*value) {
- printf("target ip address argument missing");
- } else if (strnlen(value, MAX_ADDRESS_LEN) <= MAX_ADDRESS_LEN) {
- if(verboseflag)
- printf("ip address %s override specified\n",value);
- got_ip = 1;
- } else {
- printf("ip address too long\n");
- SAFE_FREE(out);
- return 1;
- }
- } else if ((strncmp(data, "unc", 3) == 0)
- || (strncmp(data, "target", 6) == 0)
- || (strncmp(data, "path", 4) == 0)) {
- if (!value || !*value) {
- printf("invalid path to network resource\n");
- SAFE_FREE(out);
- return 1; /* needs_arg; */
- } else if(strnlen(value,5) < 5) {
- printf("UNC name too short");
- }
-
- if (strnlen(value, 300) < 300) {
- got_unc = 1;
- if (strncmp(value, "//", 2) == 0) {
- if(got_unc)
- printf("unc name specified twice, ignoring second\n");
- else
- got_unc = 1;
- } else if (strncmp(value, "\\\\", 2) != 0) {
- printf("UNC Path does not begin with // or \\\\ \n");
- SAFE_FREE(out);
- return 1;
- } else {
- if(got_unc)
- printf("unc name specified twice, ignoring second\n");
- else
- got_unc = 1;
- }
- } else {
- printf("CIFS: UNC name too long\n");
- SAFE_FREE(out);
- return 1;
- }
- } else if ((strncmp(data, "dom" /* domain */, 3) == 0)
- || (strncmp(data, "workg", 5) == 0)) {
- /* note this allows for synonyms of "domain"
- such as "DOM" and "dom" and "workgroup"
- and "WORKGRP" etc. */
- if (!value || !*value) {
- printf("CIFS: invalid domain name\n");
- SAFE_FREE(out);
- return 1; /* needs_arg; */
- }
- if (strnlen(value, DOMAIN_SIZE+1) < DOMAIN_SIZE+1) {
- got_domain = 1;
- } else {
- printf("domain name too long\n");
- SAFE_FREE(out);
- return 1;
- }
- } else if (strncmp(data, "cred", 4) == 0) {
- if (value && *value) {
- rc = open_cred_file(value);
- if(rc) {
- printf("error %d (%s) opening credential file %s\n",
- rc, strerror(rc), value);
- SAFE_FREE(out);
- return 1;
- }
- } else {
- printf("invalid credential file name specified\n");
- SAFE_FREE(out);
- return 1;
- }
- } else if (strncmp(data, "uid", 3) == 0) {
- if (value && *value) {
- got_uid = 1;
- if (!isdigit(*value)) {
- struct passwd *pw;
-
- if (!(pw = getpwnam(value))) {
- printf("bad user name \"%s\"\n", value);
- exit(EX_USAGE);
- }
- snprintf(user, sizeof(user), "%u", pw->pw_uid);
- } else {
- strlcpy(user,value,sizeof(user));
- }
- }
- goto nocopy;
- } else if (strncmp(data, "gid", 3) == 0) {
- if (value && *value) {
- got_gid = 1;
- if (!isdigit(*value)) {
- struct group *gr;
-
- if (!(gr = getgrnam(value))) {
- printf("bad group name \"%s\"\n", value);
- exit(EX_USAGE);
- }
- snprintf(group, sizeof(group), "%u", gr->gr_gid);
- } else {
- strlcpy(group,value,sizeof(group));
- }
- }
- goto nocopy;
- /* fmask and dmask synonyms for people used to smbfs syntax */
- } else if (strcmp(data, "file_mode") == 0 || strcmp(data, "fmask")==0) {
- if (!value || !*value) {
- printf ("Option '%s' requires a numerical argument\n", data);
- SAFE_FREE(out);
- return 1;
- }
-
- if (value[0] != '0') {
- printf ("WARNING: '%s' not expressed in octal.\n", data);
- }
-
- if (strcmp (data, "fmask") == 0) {
- printf ("WARNING: CIFS mount option 'fmask' is deprecated. Use 'file_mode' instead.\n");
- data = "file_mode"; /* BB fix this */
- }
- } else if (strcmp(data, "dir_mode") == 0 || strcmp(data, "dmask")==0) {
- if (!value || !*value) {
- printf ("Option '%s' requires a numerical argument\n", data);
- SAFE_FREE(out);
- return 1;
- }
-
- if (value[0] != '0') {
- printf ("WARNING: '%s' not expressed in octal.\n", data);
- }
-
- if (strcmp (data, "dmask") == 0) {
- printf ("WARNING: CIFS mount option 'dmask' is deprecated. Use 'dir_mode' instead.\n");
- data = "dir_mode";
- }
- /* the following eight mount options should be
- stripped out from what is passed into the kernel
- since these eight options are best passed as the
- mount flags rather than redundantly to the kernel
- and could generate spurious warnings depending on the
- level of the corresponding cifs vfs kernel code */
- } else if (strncmp(data, "nosuid", 6) == 0) {
- *filesys_flags |= MS_NOSUID;
- } else if (strncmp(data, "suid", 4) == 0) {
- *filesys_flags &= ~MS_NOSUID;
- } else if (strncmp(data, "nodev", 5) == 0) {
- *filesys_flags |= MS_NODEV;
- } else if ((strncmp(data, "nobrl", 5) == 0) ||
- (strncmp(data, "nolock", 6) == 0)) {
- *filesys_flags &= ~MS_MANDLOCK;
- } else if (strncmp(data, "dev", 3) == 0) {
- *filesys_flags &= ~MS_NODEV;
- } else if (strncmp(data, "noexec", 6) == 0) {
- *filesys_flags |= MS_NOEXEC;
- } else if (strncmp(data, "exec", 4) == 0) {
- *filesys_flags &= ~MS_NOEXEC;
- } else if (strncmp(data, "guest", 5) == 0) {
- user_name = (char *)calloc(1, 1);
- got_user = 1;
- got_password = 1;
- } else if (strncmp(data, "ro", 2) == 0) {
- *filesys_flags |= MS_RDONLY;
- } else if (strncmp(data, "rw", 2) == 0) {
- *filesys_flags &= ~MS_RDONLY;
- } else if (strncmp(data, "remount", 7) == 0) {
- *filesys_flags |= MS_REMOUNT;
- } /* else if (strnicmp(data, "port", 4) == 0) {
- if (value && *value) {
- vol->port =
- simple_strtoul(value, &value, 0);
- }
- } else if (strnicmp(data, "rsize", 5) == 0) {
- if (value && *value) {
- vol->rsize =
- simple_strtoul(value, &value, 0);
- }
- } else if (strnicmp(data, "wsize", 5) == 0) {
- if (value && *value) {
- vol->wsize =
- simple_strtoul(value, &value, 0);
- }
- } else if (strnicmp(data, "version", 3) == 0) {
- } else {
- printf("CIFS: Unknown mount option %s\n",data);
- } */ /* nothing to do on those four mount options above.
- Just pass to kernel and ignore them here */
-
- /* Copy (possibly modified) option to out */
- word_len = strlen(data);
- if (value)
- word_len += 1 + strlen(value);
-
- out = (char *)realloc(out, out_len + word_len + 2);
- if (out == NULL) {
- perror("malloc");
- exit(EX_SYSERR);
- }
-
- if (out_len) {
- strlcat(out, ",", out_len + word_len + 2);
- out_len++;
- }
-
- if (value)
- snprintf(out + out_len, word_len + 1, "%s=%s", data, value);
- else
- snprintf(out + out_len, word_len + 1, "%s", data);
- out_len = strlen(out);
-
-nocopy:
- data = next_keyword;
- }
-
- /* special-case the uid and gid */
- if (got_uid) {
- word_len = strlen(user);
-
- out = (char *)realloc(out, out_len + word_len + 6);
- if (out == NULL) {
- perror("malloc");
- exit(EX_SYSERR);
- }
-
- if (out_len) {
- strlcat(out, ",", out_len + word_len + 6);
- out_len++;
- }
- snprintf(out + out_len, word_len + 5, "uid=%s", user);
- out_len = strlen(out);
- }
- if (got_gid) {
- word_len = strlen(group);
-
- out = (char *)realloc(out, out_len + 1 + word_len + 6);
- if (out == NULL) {
- perror("malloc");
- exit(EX_SYSERR);
- }
-
- if (out_len) {
- strlcat(out, ",", out_len + word_len + 6);
- out_len++;
- }
- snprintf(out + out_len, word_len + 5, "gid=%s", group);
- out_len = strlen(out);
- }
-
- SAFE_FREE(*optionsp);
- *optionsp = out;
- return 0;
-}
-
-/* replace all (one or more) commas with double commas */
-static void check_for_comma(char ** ppasswrd)
-{
- char *new_pass_buf;
- char *pass;
- int i,j;
- int number_of_commas = 0;
- int len;
-
- if(ppasswrd == NULL)
- return;
- else
- (pass = *ppasswrd);
-
- len = strlen(pass);
-
- for(i=0;i<len;i++) {
- if(pass[i] == ',')
- number_of_commas++;
- }
-
- if(number_of_commas == 0)
- return;
- if(number_of_commas > MOUNT_PASSWD_SIZE) {
- /* would otherwise overflow the mount options buffer */
- printf("\nInvalid password. Password contains too many commas.\n");
- return;
- }
-
- new_pass_buf = (char *)malloc(len+number_of_commas+1);
- if(new_pass_buf == NULL)
- return;
-
- for(i=0,j=0;i<len;i++,j++) {
- new_pass_buf[j] = pass[i];
- if(pass[i] == ',') {
- j++;
- new_pass_buf[j] = pass[i];
- }
- }
- new_pass_buf[len+number_of_commas] = 0;
-
- SAFE_FREE(*ppasswrd);
- *ppasswrd = new_pass_buf;
-
- return;
-}
-
-/* Usernames can not have backslash in them and we use
- [BB check if usernames can have forward slash in them BB]
- backslash as domain\user separator character
-*/
-static char * check_for_domain(char **ppuser)
-{
- char * original_string;
- char * usernm;
- char * domainnm;
- int original_len;
- int len;
- int i;
-
- if(ppuser == NULL)
- return NULL;
-
- original_string = *ppuser;
-
- if (original_string == NULL)
- return NULL;
-
- original_len = strlen(original_string);
-
- usernm = strchr(*ppuser,'/');
- if (usernm == NULL) {
- usernm = strchr(*ppuser,'\\');
- if (usernm == NULL)
- return NULL;
- }
-
- if(got_domain) {
- printf("Domain name specified twice. Username probably malformed\n");
- return NULL;
- }
-
- usernm[0] = 0;
- domainnm = *ppuser;
- if (domainnm[0] != 0) {
- got_domain = 1;
- } else {
- printf("null domain\n");
- }
- len = strlen(domainnm);
- /* reset domainm to new buffer, and copy
- domain name into it */
- domainnm = (char *)malloc(len+1);
- if(domainnm == NULL)
- return NULL;
-
- strlcpy(domainnm,*ppuser,len+1);
-
-/* move_string(*ppuser, usernm+1) */
- len = strlen(usernm+1);
-
- if(len >= original_len) {
- /* should not happen */
- return domainnm;
- }
-
- for(i=0;i<original_len;i++) {
- if(i<len)
- original_string[i] = usernm[i+1];
- else /* stuff with commas to remove last parm */
- original_string[i] = ',';
- }
-
- /* BB add check for more than one slash?
- strchr(*ppuser,'/');
- strchr(*ppuser,'\\')
- */
-
- return domainnm;
-}
-
-/* replace all occurances of "from" in a string with "to" */
-static void replace_char(char *string, char from, char to, int maxlen)
-{
- char *lastchar = string + maxlen;
- while (string) {
- string = strchr(string, from);
- if (string) {
- *string = to;
- if (string >= lastchar)
- return;
- }
- }
-}
-
-/* Note that caller frees the returned buffer if necessary */
-static struct addrinfo *
-parse_server(char ** punc_name)
-{
- char * unc_name = *punc_name;
- int length = strnlen(unc_name, MAX_UNC_LEN);
- char * share;
- struct addrinfo *addrlist;
- int rc;
-
- if(length > (MAX_UNC_LEN - 1)) {
- printf("mount error: UNC name too long");
- return NULL;
- }
- if ((strncasecmp("cifs://", unc_name, 7) == 0) ||
- (strncasecmp("smb://", unc_name, 6) == 0)) {
- printf("\nMounting cifs URL not implemented yet. Attempt to mount %s\n", unc_name);
- return NULL;
- }
-
- if(length < 3) {
- /* BB add code to find DFS root here */
- printf("\nMounting the DFS root for domain not implemented yet\n");
- return NULL;
- } else {
- if(strncmp(unc_name,"//",2) && strncmp(unc_name,"\\\\",2)) {
- /* check for nfs syntax ie server:share */
- share = strchr(unc_name,':');
- if(share) {
- *punc_name = (char *)malloc(length+3);
- if(*punc_name == NULL) {
- /* put the original string back if
- no memory left */
- *punc_name = unc_name;
- return NULL;
- }
- *share = '/';
- strlcpy((*punc_name)+2,unc_name,length+1);
- SAFE_FREE(unc_name);
- unc_name = *punc_name;
- unc_name[length+2] = 0;
- goto continue_unc_parsing;
- } else {
- printf("mount error: improperly formatted UNC name.");
- printf(" %s does not begin with \\\\ or //\n",unc_name);
- return NULL;
- }
- } else {
-continue_unc_parsing:
- unc_name[0] = '/';
- unc_name[1] = '/';
- unc_name += 2;
-
- /* allow for either delimiter between host and sharename */
- if ((share = strpbrk(unc_name, "/\\"))) {
- *share = 0; /* temporarily terminate the string */
- share += 1;
- if(got_ip == 0) {
- rc = getaddrinfo(unc_name, NULL, NULL, &addrlist);
- if (rc != 0) {
- printf("mount error: could not resolve address for %s: %s\n",
- unc_name, gai_strerror(rc));
- addrlist = NULL;
- }
- }
- *(share - 1) = '/'; /* put delimiter back */
-
- /* we don't convert the prefixpath delimiters since '\\' is a valid char in posix paths */
- if ((prefixpath = strpbrk(share, "/\\"))) {
- *prefixpath = 0; /* permanently terminate the string */
- if (!strlen(++prefixpath))
- prefixpath = NULL; /* this needs to be done explicitly */
- }
- if(got_ip) {
- if(verboseflag)
- printf("ip address specified explicitly\n");
- return NULL;
- }
- /* BB should we pass an alternate version of the share name as Unicode */
-
- return addrlist;
- } else {
- /* BB add code to find DFS root (send null path on get DFS Referral to specified server here */
- printf("Mounting the DFS root for a particular server not implemented yet\n");
- return NULL;
- }
- }
- }
-}
-
-static struct option longopts[] = {
- { "all", 0, NULL, 'a' },
- { "help",0, NULL, 'h' },
- { "move",0, NULL, 'm' },
- { "bind",0, NULL, 'b' },
- { "read-only", 0, NULL, 'r' },
- { "ro", 0, NULL, 'r' },
- { "verbose", 0, NULL, 'v' },
- { "version", 0, NULL, 'V' },
- { "read-write", 0, NULL, 'w' },
- { "rw", 0, NULL, 'w' },
- { "options", 1, NULL, 'o' },
- { "type", 1, NULL, 't' },
- { "rsize",1, NULL, 'R' },
- { "wsize",1, NULL, 'W' },
- { "uid", 1, NULL, '1'},
- { "gid", 1, NULL, '2'},
- { "user",1,NULL,'u'},
- { "username",1,NULL,'u'},
- { "dom",1,NULL,'d'},
- { "domain",1,NULL,'d'},
- { "password",1,NULL,'p'},
- { "pass",1,NULL,'p'},
- { "credentials",1,NULL,'c'},
- { "port",1,NULL,'P'},
- /* { "uuid",1,NULL,'U'}, */ /* BB unimplemented */
- { NULL, 0, NULL, 0 }
-};
-
-/* convert a string to uppercase. return false if the string
- * wasn't ASCII. Return success on a NULL ptr */
-static int
-uppercase_string(char *string)
-{
- if (!string)
- return 1;
-
- while (*string) {
- /* check for unicode */
- if ((unsigned char) string[0] & 0x80)
- return 0;
- *string = toupper((unsigned char) *string);
- string++;
- }
-
- return 1;
-}
-
-static void print_cifs_mount_version(void)
-{
- printf("mount.cifs version: %s.%s%s\n",
- MOUNT_CIFS_VERSION_MAJOR,
- MOUNT_CIFS_VERSION_MINOR,
- MOUNT_CIFS_VENDOR_SUFFIX);
-}
-
-int main(int argc, char ** argv)
-{
- int c;
- int flags = MS_MANDLOCK; /* no need to set legacy MS_MGC_VAL */
- char * orgoptions = NULL;
- char * share_name = NULL;
- const char * ipaddr = NULL;
- char * uuid = NULL;
- char * mountpoint = NULL;
- char * options = NULL;
- char * optionstail;
- char * resolved_path = NULL;
- char * temp;
- char * dev_name;
- int rc = 0;
- int rsize = 0;
- int wsize = 0;
- int nomtab = 0;
- int uid = 0;
- int gid = 0;
- int optlen = 0;
- int orgoptlen = 0;
- size_t options_size = 0;
- size_t current_len;
- int retry = 0; /* set when we have to retry mount with uppercase */
- struct addrinfo *addrhead = NULL, *addr;
- struct stat statbuf;
- struct utsname sysinfo;
- struct mntent mountent;
- struct sockaddr_in *addr4;
- struct sockaddr_in6 *addr6;
- FILE * pmntfile;
-
- /* setlocale(LC_ALL, "");
- bindtextdomain(PACKAGE, LOCALEDIR);
- textdomain(PACKAGE); */
-
- if(argc && argv) {
- thisprogram = argv[0];
- } else {
- mount_cifs_usage();
- exit(EX_USAGE);
- }
-
- if(thisprogram == NULL)
- thisprogram = "mount.cifs";
-
- uname(&sysinfo);
- /* BB add workstation name and domain and pass down */
-
-/* #ifdef _GNU_SOURCE
- printf(" node: %s machine: %s sysname %s domain %s\n", sysinfo.nodename,sysinfo.machine,sysinfo.sysname,sysinfo.domainname);
-#endif */
- if(argc > 2) {
- dev_name = argv[1];
- share_name = strndup(argv[1], MAX_UNC_LEN);
- if (share_name == NULL) {
- fprintf(stderr, "%s: %s", argv[0], strerror(ENOMEM));
- exit(EX_SYSERR);
- }
- mountpoint = argv[2];
- } else if (argc == 2) {
- if ((strcmp(argv[1], "-V") == 0) ||
- (strcmp(argv[1], "--version") == 0))
- {
- print_cifs_mount_version();
- exit(0);
- }
-
- if ((strcmp(argv[1], "-h") == 0) ||
- (strcmp(argv[1], "-?") == 0) ||
- (strcmp(argv[1], "--help") == 0))
- {
- mount_cifs_usage();
- exit(0);
- }
-
- mount_cifs_usage();
- exit(EX_USAGE);
- } else {
- mount_cifs_usage();
- exit(EX_USAGE);
- }
-
- /* add sharename in opts string as unc= parm */
-
- while ((c = getopt_long (argc, argv, "afFhilL:no:O:rsSU:vVwt:",
- longopts, NULL)) != -1) {
- switch (c) {
-/* No code to do the following options yet */
-/* case 'l':
- list_with_volumelabel = 1;
- break;
- case 'L':
- volumelabel = optarg;
- break; */
-/* case 'a':
- ++mount_all;
- break; */
-
- case '?':
- case 'h': /* help */
- mount_cifs_usage ();
- exit(0);
- case 'n':
- ++nomtab;
- break;
- case 'b':
-#ifdef MS_BIND
- flags |= MS_BIND;
-#else
- fprintf(stderr,
- "option 'b' (MS_BIND) not supported\n");
-#endif
- break;
- case 'm':
-#ifdef MS_MOVE
- flags |= MS_MOVE;
-#else
- fprintf(stderr,
- "option 'm' (MS_MOVE) not supported\n");
-#endif
- break;
- case 'o':
- orgoptions = strdup(optarg);
- break;
- case 'r': /* mount readonly */
- flags |= MS_RDONLY;
- break;
- case 'U':
- uuid = optarg;
- break;
- case 'v':
- ++verboseflag;
- break;
- case 'V':
- print_cifs_mount_version();
- exit (0);
- case 'w':
- flags &= ~MS_RDONLY;
- break;
- case 'R':
- rsize = atoi(optarg) ;
- break;
- case 'W':
- wsize = atoi(optarg);
- break;
- case '1':
- if (isdigit(*optarg)) {
- char *ep;
-
- uid = strtoul(optarg, &ep, 10);
- if (*ep) {
- printf("bad uid value \"%s\"\n", optarg);
- exit(EX_USAGE);
- }
- } else {
- struct passwd *pw;
-
- if (!(pw = getpwnam(optarg))) {
- printf("bad user name \"%s\"\n", optarg);
- exit(EX_USAGE);
- }
- uid = pw->pw_uid;
- endpwent();
- }
- break;
- case '2':
- if (isdigit(*optarg)) {
- char *ep;
-
- gid = strtoul(optarg, &ep, 10);
- if (*ep) {
- printf("bad gid value \"%s\"\n", optarg);
- exit(EX_USAGE);
- }
- } else {
- struct group *gr;
-
- if (!(gr = getgrnam(optarg))) {
- printf("bad user name \"%s\"\n", optarg);
- exit(EX_USAGE);
- }
- gid = gr->gr_gid;
- endpwent();
- }
- break;
- case 'u':
- got_user = 1;
- user_name = optarg;
- break;
- case 'd':
- domain_name = optarg; /* BB fix this - currently ignored */
- got_domain = 1;
- break;
- case 'p':
- if(mountpassword == NULL)
- mountpassword = (char *)calloc(MOUNT_PASSWD_SIZE+1,1);
- if(mountpassword) {
- got_password = 1;
- strlcpy(mountpassword,optarg,MOUNT_PASSWD_SIZE+1);
- }
- break;
- case 'S':
- get_password_from_file(0 /* stdin */,NULL);
- break;
- case 't':
- break;
- case 'f':
- ++fakemnt;
- break;
- default:
- printf("unknown mount option %c\n",c);
- mount_cifs_usage();
- exit(EX_USAGE);
- }
- }
-
- if((argc < 3) || (dev_name == NULL) || (mountpoint == NULL)) {
- mount_cifs_usage();
- exit(EX_USAGE);
- }
-
- if (getenv("PASSWD")) {
- if(mountpassword == NULL)
- mountpassword = (char *)calloc(MOUNT_PASSWD_SIZE+1,1);
- if(mountpassword) {
- strlcpy(mountpassword,getenv("PASSWD"),MOUNT_PASSWD_SIZE+1);
- got_password = 1;
- }
- } else if (getenv("PASSWD_FD")) {
- get_password_from_file(atoi(getenv("PASSWD_FD")),NULL);
- } else if (getenv("PASSWD_FILE")) {
- get_password_from_file(0, getenv("PASSWD_FILE"));
- }
-
- if (orgoptions && parse_options(&orgoptions, &flags)) {
- rc = EX_USAGE;
- goto mount_exit;
- }
- addrhead = addr = parse_server(&share_name);
- if((addrhead == NULL) && (got_ip == 0)) {
- printf("No ip address specified and hostname not found\n");
- rc = EX_USAGE;
- goto mount_exit;
- }
-
- /* BB save off path and pop after mount returns? */
- resolved_path = (char *)malloc(PATH_MAX+1);
- if(resolved_path) {
- /* Note that if we can not canonicalize the name, we get
- another chance to see if it is valid when we chdir to it */
- if (realpath(mountpoint, resolved_path)) {
- mountpoint = resolved_path;
- }
- }
- if(chdir(mountpoint)) {
- printf("mount error: can not change directory into mount target %s\n",mountpoint);
- rc = EX_USAGE;
- goto mount_exit;
- }
-
- if(stat (".", &statbuf)) {
- printf("mount error: mount point %s does not exist\n",mountpoint);
- rc = EX_USAGE;
- goto mount_exit;
- }
-
- if (S_ISDIR(statbuf.st_mode) == 0) {
- printf("mount error: mount point %s is not a directory\n",mountpoint);
- rc = EX_USAGE;
- goto mount_exit;
- }
-
- if((getuid() != 0) && (geteuid() == 0)) {
- if((statbuf.st_uid == getuid()) && (S_IRWXU == (statbuf.st_mode & S_IRWXU))) {
-#ifndef CIFS_ALLOW_USR_SUID
- /* Do not allow user mounts to control suid flag
- for mount unless explicitly built that way */
- flags |= MS_NOSUID | MS_NODEV;
-#endif
- } else {
- printf("mount error: permission denied or not superuser and mount.cifs not installed SUID\n");
- exit(EX_USAGE);
- }
- }
-
- if(got_user == 0) {
- /* Note that the password will not be retrieved from the
- USER env variable (ie user%password form) as there is
- already a PASSWD environment varaible */
- if (getenv("USER"))
- user_name = strdup(getenv("USER"));
- if (user_name == NULL)
- user_name = getusername();
- got_user = 1;
- }
-
- if(got_password == 0) {
- char *tmp_pass = getpass("Password: "); /* BB obsolete sys call but
- no good replacement yet. */
- mountpassword = (char *)calloc(MOUNT_PASSWD_SIZE+1,1);
- if (!tmp_pass || !mountpassword) {
- printf("Password not entered, exiting\n");
- exit(EX_USAGE);
- }
- strlcpy(mountpassword, tmp_pass, MOUNT_PASSWD_SIZE+1);
- got_password = 1;
- }
- /* FIXME launch daemon (handles dfs name resolution and credential change)
- remember to clear parms and overwrite password field before launching */
- if(orgoptions) {
- optlen = strlen(orgoptions);
- orgoptlen = optlen;
- } else
- optlen = 0;
- if(share_name)
- optlen += strlen(share_name) + 4;
- else {
- printf("No server share name specified\n");
- printf("\nMounting the DFS root for server not implemented yet\n");
- exit(EX_USAGE);
- }
- if(user_name)
- optlen += strlen(user_name) + 6;
- optlen += MAX_ADDRESS_LEN + 4;
- if(mountpassword)
- optlen += strlen(mountpassword) + 6;
-mount_retry:
- SAFE_FREE(options);
- options_size = optlen + 10 + DOMAIN_SIZE;
- options = (char *)malloc(options_size /* space for commas in password */ + 8 /* space for domain= , domain name itself was counted as part of the length username string above */);
-
- if(options == NULL) {
- printf("Could not allocate memory for mount options\n");
- exit(EX_SYSERR);
- }
-
- strlcpy(options, "unc=", options_size);
- strlcat(options,share_name,options_size);
- /* scan backwards and reverse direction of slash */
- temp = strrchr(options, '/');
- if(temp > options + 6)
- *temp = '\\';
- if(user_name) {
- /* check for syntax like user=domain\user */
- if(got_domain == 0)
- domain_name = check_for_domain(&user_name);
- strlcat(options,",user=",options_size);
- strlcat(options,user_name,options_size);
- }
- if(retry == 0) {
- if(domain_name) {
- /* extra length accounted for in option string above */
- strlcat(options,",domain=",options_size);
- strlcat(options,domain_name,options_size);
- }
- }
- if(mountpassword) {
- /* Commas have to be doubled, or else they will
- look like the parameter separator */
-/* if(sep is not set)*/
- if(retry == 0)
- check_for_comma(&mountpassword);
- strlcat(options,",pass=",options_size);
- strlcat(options,mountpassword,options_size);
- }
-
- strlcat(options,",ver=",options_size);
- strlcat(options,MOUNT_CIFS_VERSION_MAJOR,options_size);
-
- if(orgoptions) {
- strlcat(options,",",options_size);
- strlcat(options,orgoptions,options_size);
- }
- if(prefixpath) {
- strlcat(options,",prefixpath=",options_size);
- strlcat(options,prefixpath,options_size); /* no need to cat the / */
- }
- if(verboseflag)
- printf("\nmount.cifs kernel mount options %s \n",options);
-
- /* convert all '\\' to '/' in share portion so that /proc/mounts looks pretty */
- replace_char(dev_name, '\\', '/', strlen(share_name));
-
- if (!got_ip && addr) {
- strlcat(options, ",ip=", options_size);
- current_len = strnlen(options, options_size);
- optionstail = options + current_len;
- switch (addr->ai_addr->sa_family) {
- case AF_INET6:
- addr6 = (struct sockaddr_in6 *) addr->ai_addr;
- ipaddr = inet_ntop(AF_INET6, &addr6->sin6_addr, optionstail,
- options_size - current_len);
- break;
- case AF_INET:
- addr4 = (struct sockaddr_in *) addr->ai_addr;
- ipaddr = inet_ntop(AF_INET, &addr4->sin_addr, optionstail,
- options_size - current_len);
- break;
- }
-
- /* if the address looks bogus, try the next one */
- if (!ipaddr) {
- addr = addr->ai_next;
- if (addr)
- goto mount_retry;
- rc = EX_SYSERR;
- goto mount_exit;
- }
- }
-
- if (!fakemnt && mount(dev_name, mountpoint, "cifs", flags, options)) {
- switch (errno) {
- case ECONNREFUSED:
- case EHOSTUNREACH:
- if (addr) {
- addr = addr->ai_next;
- if (addr)
- goto mount_retry;
- }
- break;
- case ENODEV:
- printf("mount error: cifs filesystem not supported by the system\n");
- break;
- case ENXIO:
- if(retry == 0) {
- retry = 1;
- if (uppercase_string(dev_name) &&
- uppercase_string(share_name) &&
- uppercase_string(prefixpath)) {
- printf("retrying with upper case share name\n");
- goto mount_retry;
- }
- }
- }
- printf("mount error(%d): %s\n", errno, strerror(errno));
- printf("Refer to the mount.cifs(8) manual page (e.g. man "
- "mount.cifs)\n");
- rc = EX_FAIL;
- goto mount_exit;
- }
-
- if (nomtab)
- goto mount_exit;
- atexit(unlock_mtab);
- rc = lock_mtab();
- if (rc) {
- printf("cannot lock mtab");
- goto mount_exit;
- }
- pmntfile = setmntent(MOUNTED, "a+");
- if (!pmntfile) {
- printf("could not update mount table\n");
- unlock_mtab();
- rc = EX_FILEIO;
- goto mount_exit;
- }
- mountent.mnt_fsname = dev_name;
- mountent.mnt_dir = mountpoint;
- mountent.mnt_type = CONST_DISCARD(char *,"cifs");
- mountent.mnt_opts = (char *)malloc(220);
- if(mountent.mnt_opts) {
- char * mount_user = getusername();
- memset(mountent.mnt_opts,0,200);
- if(flags & MS_RDONLY)
- strlcat(mountent.mnt_opts,"ro",220);
- else
- strlcat(mountent.mnt_opts,"rw",220);
- if(flags & MS_MANDLOCK)
- strlcat(mountent.mnt_opts,",mand",220);
- if(flags & MS_NOEXEC)
- strlcat(mountent.mnt_opts,",noexec",220);
- if(flags & MS_NOSUID)
- strlcat(mountent.mnt_opts,",nosuid",220);
- if(flags & MS_NODEV)
- strlcat(mountent.mnt_opts,",nodev",220);
- if(flags & MS_SYNCHRONOUS)
- strlcat(mountent.mnt_opts,",sync",220);
- if(mount_user) {
- if(getuid() != 0) {
- strlcat(mountent.mnt_opts,
- ",user=", 220);
- strlcat(mountent.mnt_opts,
- mount_user, 220);
- }
- }
- }
- mountent.mnt_freq = 0;
- mountent.mnt_passno = 0;
- rc = addmntent(pmntfile,&mountent);
- endmntent(pmntfile);
- unlock_mtab();
- SAFE_FREE(mountent.mnt_opts);
- if (rc)
- rc = EX_FILEIO;
-mount_exit:
- if(mountpassword) {
- int len = strlen(mountpassword);
- memset(mountpassword,0,len);
- SAFE_FREE(mountpassword);
- }
-
- if (addrhead)
- freeaddrinfo(addrhead);
- SAFE_FREE(options);
- SAFE_FREE(orgoptions);
- SAFE_FREE(resolved_path);
- SAFE_FREE(share_name);
- exit(rc);
-}
diff --git a/source3/client/mount.h b/source3/client/mount.h
deleted file mode 100644
index 23ea4f0cbd..0000000000
--- a/source3/client/mount.h
+++ /dev/null
@@ -1,38 +0,0 @@
-/*
- * Copyright (C) 2008 Jeff Layton (jlayton@samba.org)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 3 of the License, or
- * (at your option) any later version.
- * *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-/* most of this info was taken from the util-linux-ng sources */
-
-#ifndef _MOUNT_H_
-#define _MOUNT_H_
-
-/* exit status - bits below are ORed */
-#define EX_USAGE 1 /* incorrect invocation or permission */
-#define EX_SYSERR 2 /* out of memory, cannot fork, ... */
-#define EX_SOFTWARE 4 /* internal mount bug or wrong version */
-#define EX_USER 8 /* user interrupt */
-#define EX_FILEIO 16 /* problems writing, locking, ... mtab/fstab */
-#define EX_FAIL 32 /* mount failure */
-#define EX_SOMEOK 64 /* some mount succeeded */
-
-#define _PATH_MOUNTED_LOCK _PATH_MOUNTED "~"
-#define _PATH_MOUNTED_TMP _PATH_MOUNTED ".tmp"
-
-extern int lock_mtab(void);
-extern void unlock_mtab(void);
-
-#endif /* ! _MOUNT_H_ */
diff --git a/source3/client/mtab.c b/source3/client/mtab.c
deleted file mode 100644
index 70789bcb9d..0000000000
--- a/source3/client/mtab.c
+++ /dev/null
@@ -1,220 +0,0 @@
-/*
- * mtab locking routines for use with mount.cifs and umount.cifs
- * Copyright (C) 2008 Jeff Layton (jlayton@samba.org)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
-*/
-
-/*
- * This code was copied from the util-linux-ng sources and modified:
- *
- * git://git.kernel.org/pub/scm/utils/util-linux-ng/util-linux-ng.git
- *
- * ...specifically from mount/fstab.c. That file has no explicit license. The
- * "default" license for anything in that tree is apparently GPLv2+, so I
- * believe we're OK to copy it here.
- *
- * Jeff Layton <jlayton@samba.org>
- */
-
-#include <unistd.h>
-#include <errno.h>
-#include <stdio.h>
-#include <sys/time.h>
-#include <sys/stat.h>
-#include <time.h>
-#include <fcntl.h>
-#include <mntent.h>
-#include <stdlib.h>
-#include <signal.h>
-#include "mount.h"
-
-
-/* Updating mtab ----------------------------------------------*/
-
-/* Flag for already existing lock file. */
-static int we_created_lockfile = 0;
-static int lockfile_fd = -1;
-
-/* Flag to indicate that signals have been set up. */
-static int signals_have_been_setup = 0;
-
-static void
-handler (int sig) {
- exit(EX_USER);
-}
-
-static void
-setlkw_timeout (int sig) {
- /* nothing, fcntl will fail anyway */
-}
-
-/* Remove lock file. */
-void
-unlock_mtab (void) {
- if (we_created_lockfile) {
- close(lockfile_fd);
- lockfile_fd = -1;
- unlink (_PATH_MOUNTED_LOCK);
- we_created_lockfile = 0;
- }
-}
-
-/* Create the lock file.
- The lock file will be removed if we catch a signal or when we exit. */
-/* The old code here used flock on a lock file /etc/mtab~ and deleted
- this lock file afterwards. However, as rgooch remarks, that has a
- race: a second mount may be waiting on the lock and proceed as
- soon as the lock file is deleted by the first mount, and immediately
- afterwards a third mount comes, creates a new /etc/mtab~, applies
- flock to that, and also proceeds, so that the second and third mount
- now both are scribbling in /etc/mtab.
- The new code uses a link() instead of a creat(), where we proceed
- only if it was us that created the lock, and hence we always have
- to delete the lock afterwards. Now the use of flock() is in principle
- superfluous, but avoids an arbitrary sleep(). */
-
-/* Where does the link point to? Obvious choices are mtab and mtab~~.
- HJLu points out that the latter leads to races. Right now we use
- mtab~.<pid> instead. Use 20 as upper bound for the length of %d. */
-#define MOUNTLOCK_LINKTARGET _PATH_MOUNTED_LOCK "%d"
-#define MOUNTLOCK_LINKTARGET_LTH (sizeof(_PATH_MOUNTED_LOCK)+20)
-
-/*
- * The original mount locking code has used sleep(1) between attempts and
- * maximal number of attemps has been 5.
- *
- * There was very small number of attempts and extremely long waiting (1s)
- * that is useless on machines with large number of concurret mount processes.
- *
- * Now we wait few thousand microseconds between attempts and we have global
- * time limit (30s) rather than limit for number of attempts. The advantage
- * is that this method also counts time which we spend in fcntl(F_SETLKW) and
- * number of attempts is not so much restricted.
- *
- * -- kzak@redhat.com [2007-Mar-2007]
- */
-
-/* maximum seconds between first and last attempt */
-#define MOUNTLOCK_MAXTIME 30
-
-/* sleep time (in microseconds, max=999999) between attempts */
-#define MOUNTLOCK_WAITTIME 5000
-
-int
-lock_mtab (void) {
- int i;
- struct timespec waittime;
- struct timeval maxtime;
- char linktargetfile[MOUNTLOCK_LINKTARGET_LTH];
-
- if (!signals_have_been_setup) {
- int sig = 0;
- struct sigaction sa;
-
- sa.sa_handler = handler;
- sa.sa_flags = 0;
- sigfillset (&sa.sa_mask);
-
- while (sigismember (&sa.sa_mask, ++sig) != -1
- && sig != SIGCHLD) {
- if (sig == SIGALRM)
- sa.sa_handler = setlkw_timeout;
- else
- sa.sa_handler = handler;
- sigaction (sig, &sa, (struct sigaction *) 0);
- }
- signals_have_been_setup = 1;
- }
-
- sprintf(linktargetfile, MOUNTLOCK_LINKTARGET, getpid ());
-
- i = open (linktargetfile, O_WRONLY|O_CREAT, S_IRUSR|S_IWUSR);
- if (i < 0) {
- /* linktargetfile does not exist (as a file)
- and we cannot create it. Read-only filesystem?
- Too many files open in the system?
- Filesystem full? */
- return EX_FILEIO;
- }
- close(i);
-
- gettimeofday(&maxtime, NULL);
- maxtime.tv_sec += MOUNTLOCK_MAXTIME;
-
- waittime.tv_sec = 0;
- waittime.tv_nsec = (1000 * MOUNTLOCK_WAITTIME);
-
- /* Repeat until it was us who made the link */
- while (!we_created_lockfile) {
- struct timeval now;
- struct flock flock;
- int errsv, j;
-
- j = link(linktargetfile, _PATH_MOUNTED_LOCK);
- errsv = errno;
-
- if (j == 0)
- we_created_lockfile = 1;
-
- if (j < 0 && errsv != EEXIST) {
- (void) unlink(linktargetfile);
- return EX_FILEIO;
- }
-
- lockfile_fd = open (_PATH_MOUNTED_LOCK, O_WRONLY);
-
- if (lockfile_fd < 0) {
- /* Strange... Maybe the file was just deleted? */
- gettimeofday(&now, NULL);
- if (errno == ENOENT && now.tv_sec < maxtime.tv_sec) {
- we_created_lockfile = 0;
- continue;
- }
- (void) unlink(linktargetfile);
- return EX_FILEIO;
- }
-
- flock.l_type = F_WRLCK;
- flock.l_whence = SEEK_SET;
- flock.l_start = 0;
- flock.l_len = 0;
-
- if (j == 0) {
- /* We made the link. Now claim the lock. If we can't
- * get it, continue anyway
- */
- fcntl (lockfile_fd, F_SETLK, &flock);
- (void) unlink(linktargetfile);
- } else {
- /* Someone else made the link. Wait. */
- gettimeofday(&now, NULL);
- if (now.tv_sec < maxtime.tv_sec) {
- alarm(maxtime.tv_sec - now.tv_sec);
- if (fcntl (lockfile_fd, F_SETLKW, &flock) == -1) {
- (void) unlink(linktargetfile);
- return EX_FILEIO;
- }
- alarm(0);
- nanosleep(&waittime, NULL);
- } else {
- (void) unlink(linktargetfile);
- return EX_FILEIO;
- }
- close(lockfile_fd);
- }
- }
- return 0;
-}
-
diff --git a/source3/client/umount.cifs.c b/source3/client/umount.cifs.c
deleted file mode 100644
index 1227e7a204..0000000000
--- a/source3/client/umount.cifs.c
+++ /dev/null
@@ -1,405 +0,0 @@
-/*
- Unmount utility program for Linux CIFS VFS (virtual filesystem) client
- Copyright (C) 2005 Steve French (sfrench@us.ibm.com)
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 3 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>. */
-
-#ifndef _GNU_SOURCE
-#define _GNU_SOURCE
-#endif
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <unistd.h>
-#include <ctype.h>
-#include <sys/types.h>
-#include <sys/mount.h>
-#include <sys/ioctl.h>
-#include <sys/stat.h>
-#include <sys/vfs.h>
-#include <fcntl.h>
-#include <getopt.h>
-#include <errno.h>
-#include <string.h>
-#include <mntent.h>
-#include <limits.h>
-#include "mount.h"
-
-#define UNMOUNT_CIFS_VERSION_MAJOR "0"
-#define UNMOUNT_CIFS_VERSION_MINOR "6"
-
-#ifndef UNMOUNT_CIFS_VENDOR_SUFFIX
- #ifdef _SAMBA_BUILD_
- #include "include/version.h"
- #ifdef SAMBA_VERSION_VENDOR_SUFFIX
- #define UNMOUNT_CIFS_VENDOR_SUFFIX "-"SAMBA_VERSION_OFFICIAL_STRING"-"SAMBA_VERSION_VENDOR_SUFFIX
- #else
- #define UNMOUNT_CIFS_VENDOR_SUFFIX "-"SAMBA_VERSION_OFFICIAL_STRING
- #endif /* SAMBA_VERSION_OFFICIAL_STRING and SAMBA_VERSION_VENDOR_SUFFIX */
- #else
- #define UNMOUNT_CIFS_VENDOR_SUFFIX ""
- #endif /* _SAMBA_BUILD_ */
-#endif /* UNMOUNT_CIFS_VENDOR_SUFFIX */
-
-#ifndef MNT_DETACH
-#define MNT_DETACH 0x02
-#endif
-
-#ifndef MNT_EXPIRE
-#define MNT_EXPIRE 0x04
-#endif
-
-#ifndef MOUNTED_LOCK
-#define MOUNTED_LOCK "/etc/mtab~"
-#endif
-#ifndef MOUNTED_TEMP
-#define MOUNTED_TEMP "/etc/mtab.tmp"
-#endif
-
-#define CIFS_IOC_CHECKUMOUNT _IO(0xCF, 2)
-#define CIFS_MAGIC_NUMBER 0xFF534D42 /* the first four bytes of SMB PDU */
-
-static struct option longopts[] = {
- { "all", 0, NULL, 'a' },
- { "help",0, NULL, 'h' },
- { "read-only", 0, NULL, 'r' },
- { "ro", 0, NULL, 'r' },
- { "verbose", 0, NULL, 'v' },
- { "version", 0, NULL, 'V' },
- { "expire", 0, NULL, 'e' },
- { "force", 0, 0, 'f' },
- { "lazy", 0, 0, 'l' },
- { "no-mtab", 0, 0, 'n' },
- { NULL, 0, NULL, 0 }
-};
-
-const char * thisprogram;
-int verboseflg = 0;
-
-static void umount_cifs_usage(void)
-{
- printf("\nUsage: %s <remotetarget> <dir>\n", thisprogram);
- printf("\nUnmount the specified directory\n");
- printf("\nLess commonly used options:");
- printf("\n\t-r\tIf mount fails, retry with readonly remount.");
- printf("\n\t-n\tDo not write to mtab.");
- printf("\n\t-f\tAttempt a forced unmount, even if the fs is busy.");
- printf("\n\t-l\tAttempt lazy unmount, Unmount now, cleanup later.");
- printf("\n\t-v\tEnable verbose mode (may be useful for debugging).");
- printf("\n\t-h\tDisplay this help.");
- printf("\n\nOptions are described in more detail in the manual page");
- printf("\n\tman 8 umount.cifs\n");
- printf("\nTo display the version number of the cifs umount utility:");
- printf("\n\t%s -V\n",thisprogram);
- printf("\nInvoking the umount utility on cifs mounts, can execute");
- printf(" /sbin/umount.cifs (if present and umount -i is not specified.\n");
-}
-
-static int umount_check_perm(char * dir)
-{
- int fileid;
- int rc;
-
- /* allow root to unmount, no matter what */
- if(getuid() == 0)
- return 0;
-
- /* presumably can not chdir into the target as we do on mount */
- fileid = open(dir, O_RDONLY | O_DIRECTORY | O_NOFOLLOW, 0);
- if(fileid == -1) {
- if(verboseflg)
- printf("error opening mountpoint %d %s",errno,strerror(errno));
- return errno;
- }
-
- rc = ioctl(fileid, CIFS_IOC_CHECKUMOUNT, NULL);
-
- if(verboseflg)
- printf("ioctl returned %d with errno %d %s\n",rc,errno,strerror(errno));
-
- if(rc == ENOTTY) {
- printf("user unmounting via %s is an optional feature of",thisprogram);
- printf(" the cifs filesystem driver (cifs.ko)");
- printf("\n\tand requires cifs.ko version 1.32 or later\n");
- } else if (rc != 0)
- printf("user unmount of %s failed with %d %s\n",dir,errno,strerror(errno));
- close(fileid);
-
- return rc;
-}
-
-static int remove_from_mtab(char * mountpoint)
-{
- int rc;
- int num_matches;
- FILE * org_fd;
- FILE * new_fd;
- struct mntent * mount_entry;
-
- /* Do we need to check if it is a symlink to e.g. /proc/mounts
- in which case we probably do not want to update it? */
-
- /* Do we first need to check if it is writable? */
-
- atexit(unlock_mtab);
- if (lock_mtab()) {
- printf("Mount table locked\n");
- return -EACCES;
- }
-
- if(verboseflg)
- printf("attempting to remove from mtab\n");
-
- org_fd = setmntent(MOUNTED, "r");
-
- if(org_fd == NULL) {
- printf("Can not open %s\n",MOUNTED);
- unlock_mtab();
- return -EIO;
- }
-
- new_fd = setmntent(MOUNTED_TEMP,"w");
- if(new_fd == NULL) {
- printf("Can not open temp file %s", MOUNTED_TEMP);
- endmntent(org_fd);
- unlock_mtab();
- return -EIO;
- }
-
- /* BB fix so we only remove the last entry that matches BB */
- num_matches = 0;
- while((mount_entry = getmntent(org_fd)) != NULL) {
- if(strcmp(mount_entry->mnt_dir, mountpoint) == 0) {
- num_matches++;
- }
- }
- if(verboseflg)
- printf("%d matching entries in mount table\n", num_matches);
-
- /* Is there a better way to seek back to the first entry in mtab? */
- endmntent(org_fd);
- org_fd = setmntent(MOUNTED, "r");
-
- if(org_fd == NULL) {
- printf("Can not open %s\n",MOUNTED);
- unlock_mtab();
- return -EIO;
- }
-
- while((mount_entry = getmntent(org_fd)) != NULL) {
- if(strcmp(mount_entry->mnt_dir, mountpoint) != 0) {
- addmntent(new_fd, mount_entry);
- } else {
- if(num_matches != 1) {
- addmntent(new_fd, mount_entry);
- num_matches--;
- } else if(verboseflg)
- printf("entry not copied (ie entry is removed)\n");
- }
- }
-
- if(verboseflg)
- printf("done updating tmp file\n");
- rc = fchmod (fileno (new_fd), S_IRUSR|S_IWUSR|S_IRGRP|S_IROTH);
- if(rc < 0) {
- printf("error %s changing mode of %s\n", strerror(errno),
- MOUNTED_TEMP);
- }
- endmntent(new_fd);
-
- rc = rename(MOUNTED_TEMP, MOUNTED);
-
- if(rc < 0) {
- printf("failure %s renaming %s to %s\n",strerror(errno),
- MOUNTED_TEMP, MOUNTED);
- unlock_mtab();
- return -EIO;
- }
-
- unlock_mtab();
-
- return rc;
-}
-
-/* Make a canonical pathname from PATH. Returns a freshly malloced string.
- It is up the *caller* to ensure that the PATH is sensible. i.e.
- canonicalize ("/dev/fd0/.") returns "/dev/fd0" even though ``/dev/fd0/.''
- is not a legal pathname for ``/dev/fd0'' Anything we cannot parse
- we return unmodified. */
-static char *
-canonicalize(char *path)
-{
- char *canonical;
-
- if (path == NULL) {
- return NULL;
- }
-
- if (strlen(path) > PATH_MAX) {
- fprintf(stderr, "Mount point string too long\n");
- return NULL;
- }
-
- canonical = (char *)malloc (PATH_MAX + 1);
-
- if (!canonical) {
- fprintf(stderr, "Error! Not enough memory!\n");
- return NULL;
- }
-
- if (realpath (path, canonical))
- return canonical;
-
- strncpy (canonical, path, PATH_MAX);
- canonical[PATH_MAX] = '\0';
- return canonical;
-}
-
-int main(int argc, char ** argv)
-{
- int c;
- int rc;
- int flags = 0;
- int nomtab = 0;
- int retry_remount = 0;
- struct statfs statbuf;
- char * mountpoint;
-
- if(argc && argv) {
- thisprogram = argv[0];
- } else {
- umount_cifs_usage();
- return -EINVAL;
- }
-
- if(argc < 2) {
- umount_cifs_usage();
- return -EINVAL;
- }
-
- if(thisprogram == NULL)
- thisprogram = "umount.cifs";
-
- /* add sharename in opts string as unc= parm */
-
- while ((c = getopt_long (argc, argv, "afhilnrvV",
- longopts, NULL)) != -1) {
- switch (c) {
-/* No code to do the following option yet */
-/* case 'a':
- ++umount_all;
- break; */
- case '?':
- case 'h': /* help */
- umount_cifs_usage();
- exit(1);
- case 'n':
- ++nomtab;
- break;
- case 'f':
- flags |= MNT_FORCE;
- break;
- case 'l':
- flags |= MNT_DETACH; /* lazy unmount */
- break;
- case 'e':
- flags |= MNT_EXPIRE; /* gradually timeout */
- break;
- case 'r':
- ++retry_remount;
- break;
- case 'v':
- ++verboseflg;
- break;
- case 'V':
- printf ("umount.cifs version: %s.%s%s\n",
- UNMOUNT_CIFS_VERSION_MAJOR,
- UNMOUNT_CIFS_VERSION_MINOR,
- UNMOUNT_CIFS_VENDOR_SUFFIX);
- exit (0);
- default:
- printf("unknown unmount option %c\n",c);
- umount_cifs_usage();
- exit(1);
- }
- }
-
- /* move past the umount options */
- argv += optind;
- argc -= optind;
-
- mountpoint = canonicalize(argv[0]);
-
- if((argc < 1) || (argv[0] == NULL)) {
- printf("\nMissing name of unmount directory\n");
- umount_cifs_usage();
- return -EINVAL;
- }
-
- if(verboseflg)
- printf("optind %d unmount dir %s\n",optind, mountpoint);
-
- /* check if running effectively root */
- if(geteuid() != 0) {
- printf("Trying to unmount when %s not installed suid\n",thisprogram);
- if(verboseflg)
- printf("euid = %d\n",geteuid());
- return -EACCES;
- }
-
- /* fixup path if needed */
-
- /* Trim any trailing slashes */
- while ((strlen(mountpoint) > 1) &&
- (mountpoint[strlen(mountpoint)-1] == '/'))
- {
- mountpoint[strlen(mountpoint)-1] = '\0';
- }
-
- /* make sure that this is a cifs filesystem */
- rc = statfs(mountpoint, &statbuf);
-
- if(rc || (statbuf.f_type != CIFS_MAGIC_NUMBER)) {
- printf("This utility only unmounts cifs filesystems.\n");
- return -EINVAL;
- }
-
- /* check if our uid was the one who mounted */
- rc = umount_check_perm(mountpoint);
- if (rc) {
- printf("Not permitted to unmount\n");
- return rc;
- }
-
- if(umount2(mountpoint, flags)) {
- /* remember to kill daemon on error */
- switch (errno) {
- case 0:
- printf("unmount failed but no error number set\n");
- break;
- default:
- printf("unmount error %d = %s\n",errno,strerror(errno));
- }
- printf("Refer to the umount.cifs(8) manual page (man 8 umount.cifs)\n");
- return -1;
- } else {
- if(verboseflg)
- printf("umount2 succeeded\n");
- if(nomtab == 0)
- remove_from_mtab(mountpoint);
- }
-
- return 0;
-}
-
generated by cgit (git 2.34.1) at 2024-11-20 10:18:28 +0000