From 8d033ec0d115fe2cdd9bf1fa9758cc0994f5b6f0 Mon Sep 17 00:00:00 2001 From: Jelmer Vernooij Date: Tue, 2 Jun 2009 23:07:59 +0200 Subject: Move mount.cifs/umount.cifs to the top level and remove the outdated copy in Samba 4. --- source3/Makefile.in | 6 +- source3/client/cifs.upcall.c | 391 ----------- source3/client/cifs_spnego.h | 46 -- source3/client/mount.cifs.c | 1539 ------------------------------------------ source3/client/mount.h | 38 -- source3/client/mtab.c | 220 ------ source3/client/umount.cifs.c | 405 ----------- 7 files changed, 3 insertions(+), 2642 deletions(-) delete mode 100644 source3/client/cifs.upcall.c delete mode 100644 source3/client/cifs_spnego.h delete mode 100644 source3/client/mount.cifs.c delete mode 100644 source3/client/mount.h delete mode 100644 source3/client/mtab.c delete mode 100644 source3/client/umount.cifs.c (limited to 'source3') diff --git a/source3/Makefile.in b/source3/Makefile.in index 9c87c6776a..e82a0aff35 100644 --- a/source3/Makefile.in +++ b/source3/Makefile.in @@ -979,11 +979,11 @@ CUPS_OBJ = client/smbspool.o $(PARAM_OBJ) $(LIBSMB_OBJ) $(LDB_OBJ) \ $(LIB_NONSMBD_OBJ) $(KRBCLIENT_OBJ) $(POPT_LIB_OBJ) \ $(LIBNDR_GEN_OBJ0) -CIFS_MOUNT_OBJ = client/mount.cifs.o client/mtab.o +CIFS_MOUNT_OBJ = ../client/mount.cifs.o ../client/mtab.o -CIFS_UMOUNT_OBJ = client/umount.cifs.o client/mtab.o +CIFS_UMOUNT_OBJ = ../client/umount.cifs.o ../client/mtab.o -CIFS_UPCALL_OBJ = client/cifs.upcall.o +CIFS_UPCALL_OBJ = ../client/cifs.upcall.o NMBLOOKUP_OBJ = utils/nmblookup.o $(PARAM_OBJ) $(LIBNMB_OBJ) \ $(LIB_NONSMBD_OBJ) $(POPT_LIB_OBJ) $(LIBSAMBA_OBJ) 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 - -#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, §ype, - &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 . */ - -#ifndef _GNU_SOURCE -#define _GNU_SOURCE -#endif - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#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 -o \n", thisprogram); - printf("\nMount the remote target, specified as a UNC name,"); - printf(" to a local directory.\n\nOptions:\n"); - printf("\tuser=\n\tpass=\n\tdom=\n"); - printf("\nLess commonly used options:"); - printf("\n\tcredentials=,guest,perm,noperm,setuids,nosetuids,rw,ro,"); - printf("\n\tsep=,iocharset=,suid,nosuid,exec,noexec,serverino,"); - printf("\n\tmapchars,nomapchars,nolock,servernetbiosname="); - printf("\n\tdirectio,nounix,cifsacl,sec=,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=,gid=,dir_mode=,file_mode=,sfu"); - printf("\n\nRarely used options:"); - printf("\n\tport=,rsize=,wsize=,unc=,ip=,"); - printf("\n\tdev,nodev,nouser_xattr,netbiosname=,hard,soft,intr,"); - printf("\n\tnointr,ignorecase,noposixpaths,noacl,prefixpath=,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) { - 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) { - 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;ipw_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 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= original_len) { - /* should not happen */ - return domainnm; - } - - for(i=0;i= 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 . - */ - -/* 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 . -*/ - -/* - * 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 - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#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~. 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 . */ - -#ifndef _GNU_SOURCE -#define _GNU_SOURCE -#endif - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#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 \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; -} - -- cgit