--- /dev/null
+/*
+ Mount helper utility for Linux CIFS VFS (virtual filesystem) client
+ Copyright (C) 2003,2005 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 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#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>
+
+#define MOUNT_CIFS_VERSION_MAJOR "1"
+#define MOUNT_CIFS_VERSION_MINOR "10"
+
+#ifndef MOUNT_CIFS_VENDOR_SUFFIX
+#define MOUNT_CIFS_VENDOR_SUFFIX ""
+#endif
+
+#ifndef MS_MOVE
+#define MS_MOVE 8192
+#endif
+
+char * thisprogram;
+int verboseflag = 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 int free_share_name = 0;
+static char * user_name = NULL;
+static char * mountpassword = NULL;
+char * domain_name = NULL;
+
+
+/* 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\tdirectio,mapchars,nomapchars,nolock,servernetbiosname=<SRV_RFC1001NAME>");
+ 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");
+ 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);
+
+ if(mountpassword) {
+ memset(mountpassword,0,64);
+ free(mountpassword);
+ }
+ exit(1);
+}
+
+/* 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 char * parse_cifs_url(char * unc_name)
+{
+ printf("\nMounting cifs URL not implemented yet. Attempt to mount %s\n",unc_name);
+ return NULL;
+}
+
+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 = 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')
+ break;
+ }
+ if(length > 4086) {
+ printf("mount.cifs failed due to malformed username in credentials file");
+ memset(line_buf,0,4096);
+ if(mountpassword) {
+ memset(mountpassword,0,64);
+ }
+ exit(1);
+ } else {
+ got_user = 1;
+ user_name = calloc(1 + length,1);
+ /* BB adding free of user_name string before exit,
+ not really necessary but would be cleaner */
+ strncpy(user_name,temp_val, length);
+ }
+ }
+ } 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<65;length++) {
+ if(temp_val[length] == '\n')
+ break;
+ }
+ if(length > 64) {
+ printf("mount.cifs failed: password in credentials file too long\n");
+ memset(line_buf,0, 4096);
+ if(mountpassword) {
+ memset(mountpassword,0,64);
+ }
+ exit(1);
+ } else {
+ if(mountpassword == NULL) {
+ mountpassword = calloc(65,1);
+ } else
+ memset(mountpassword,0,64);
+ if(mountpassword) {
+ strncpy(mountpassword,temp_val,length);
+ 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<65;length++) {
+ if(temp_val[length] == '\n')
+ break;
+ }
+ if(length > 64) {
+ printf("mount.cifs failed: domain in credentials file too long\n");
+ if(mountpassword) {
+ memset(mountpassword,0,64);
+ }
+ exit(1);
+ } else {
+ if(domain_name == NULL) {
+ domain_name = calloc(65,1);
+ } else
+ memset(domain_name,0,64);
+ if(domain_name) {
+ strncpy(domain_name,temp_val,length);
+ got_domain = 1;
+ }
+ }
+ }
+ }
+
+ }
+ fclose(fs);
+ if(line_buf) {
+ memset(line_buf,0,4096);
+ 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 = calloc(65,1);
+ else
+ memset(mountpassword, 0, 64);
+
+ 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(1);
+ }
+ }
+ /* else file already open and fd provided */
+
+ for(i=0;i<64;i++) {
+ rc = read(file_descript,&c,1);
+ if(rc < 0) {
+ printf("mount.cifs failed. Error %s reading password file\n",strerror(errno));
+ memset(mountpassword,0,64);
+ if(filename != NULL)
+ close(file_descript);
+ exit(1);
+ } 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')) {
+ break;
+ } else
+ mountpassword[i] = c;
+ }
+ }
+ if((i == 64) && (verboseflag)) {
+ printf("\nWarning: password longer than 64 characters specified in cifs password file");
+ }
+ got_password = 1;
+ if(filename != NULL) {
+ close(file_descript);
+ }
+
+ return rc;
+}
+
+static int parse_options(char ** optionsp, int * filesys_flags)
+{
+ 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;
+
+ if (!optionsp || !*optionsp)
+ return 1;
+ data = *optionsp;
+
+ if(verboseflag)
+ printf("parsing options: %s\n", data);
+
+ /* BB fixme check for separator override BB */
+
+/* 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");
+ 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 = calloc(65,1);
+ if(mountpassword) {
+ if(got_password)
+ printf("\nmount.cifs warning - password specified twice\n");
+ got_password = 1;
+ percent_char++;
+ strncpy(mountpassword, percent_char,64);
+ /* 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");
+ 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, 17) < 17) {
+ if(got_password)
+ printf("\nmount.cifs warning - password specified twice\n");
+ got_password = 1;
+ } else {
+ printf("password too long\n");
+ return 1;
+ }
+ } else if (strncmp(data, "ip", 2) == 0) {
+ if (!value || !*value) {
+ printf("target ip address argument missing");
+ } else if (strnlen(value, 35) < 35) {
+ if(verboseflag)
+ printf("ip address %s override specified\n",value);
+ got_ip = 1;
+ } else {
+ printf("ip address too long\n");
+ 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");
+ 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");
+ 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");
+ return 1;
+ }
+ } else if ((strncmp(data, "domain", 3) == 0)
+ || (strncmp(data, "workgroup", 5) == 0)) {
+ if (!value || !*value) {
+ printf("CIFS: invalid domain name\n");
+ return 1; /* needs_arg; */
+ }
+ if (strnlen(value, 65) < 65) {
+ got_domain = 1;
+ } else {
+ printf("domain name too long\n");
+ return 1;
+ }
+ } else if (strncmp(data, "cred", 4) == 0) {
+ if (value && *value) {
+ rc = open_cred_file(value);
+ if(rc) {
+ printf("error %d opening credential file %s\n",rc, value);
+ return 1;
+ }
+ } else {
+ printf("invalid credential file name specified\n");
+ return 1;
+ }
+ } else if (strncmp(data, "uid", 3) == 0) {
+ if (value && *value) {
+ got_uid = 1;
+ if (!isdigit(*value)) {
+ struct passwd *pw;
+ static char temp[32];
+
+ if (!(pw = getpwnam(value))) {
+ printf("bad user name \"%s\"\n", value);
+ exit(1);
+ }
+ sprintf(temp, "%u", pw->pw_uid);
+ value = temp;
+ endpwent();
+ }
+ }
+ } else if (strncmp(data, "gid", 3) == 0) {
+ if (value && *value) {
+ got_gid = 1;
+ if (!isdigit(*value)) {
+ struct group *gr;
+ static char temp[32];
+
+ if (!(gr = getgrnam(value))) {
+ printf("bad group name \"%s\"\n", value);
+ exit(1);
+ }
+ sprintf(temp, "%u", gr->gr_gid);
+ value = temp;
+ endpwent();
+ }
+ }
+ /* 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);
+ 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);
+ 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) {
+ got_password=1;
+ /* remove the parm since it would otherwise be logged by kern */
+ goto nocopy;
+ } 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 = realloc(out, out_len + word_len + 2);
+ if (out == NULL) {
+ perror("malloc");
+ exit(1);
+ }
+
+ if (out_len)
+ out[out_len++] = ',';
+ if (value)
+ sprintf(out + out_len, "%s=%s", data, value);
+ else
+ sprintf(out + out_len, "%s", data);
+ out_len = strlen(out);
+
+nocopy:
+ data = next_keyword;
+ }
+ *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 > 64) {
+ /* would otherwise overflow the mount options buffer */
+ printf("\nInvalid password. Password contains too many commas.\n");
+ return;
+ }
+
+ new_pass_buf = 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;
+
+ 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 = malloc(len+1);
+ if(domainnm == NULL)
+ return NULL;
+
+ strcpy(domainnm,*ppuser);
+
+/* 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;
+}
+
+/* Note that caller frees the returned buffer if necessary */
+static char * parse_server(char ** punc_name)
+{
+ char * unc_name = *punc_name;
+ int length = strnlen(unc_name,1024);
+ char * share;
+ char * ipaddress_string = NULL;
+ struct hostent * host_entry = NULL;
+ struct in_addr server_ipaddr;
+
+ if(length > 1023) {
+ printf("mount error: UNC name too long");
+ return NULL;
+ }
+ if (strncasecmp("cifs://",unc_name,7) == 0)
+ return parse_cifs_url(unc_name+7);
+ if (strncasecmp("smb://",unc_name,6) == 0) {
+ return parse_cifs_url(unc_name+6);
+ }
+
+ if(length < 3) {
+ /* BB add code to find DFS root here */
+ printf("\nMounting the DFS root for domain not implemented yet");
+ 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) {
+ free_share_name = 1;
+ *punc_name = malloc(length+3);
+ if(*punc_name == NULL) {
+ /* put the original string back if
+ no memory left */
+ *punc_name = unc_name;
+ return NULL;
+ }
+
+ *share = '/';
+ strncpy((*punc_name)+2,unc_name,length);
+ 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;
+ if ((share = strchr(unc_name, '/')) ||
+ (share = strchr(unc_name,'\\'))) {
+ *share = 0; /* temporarily terminate the string */
+ share += 1;
+ if(got_ip == 0) {
+ host_entry = gethostbyname(unc_name);
+ }
+ *(share - 1) = '/'; /* put the slash back */
+ if(got_ip) {
+ if(verboseflag)
+ printf("ip address specified explicitly\n");
+ return NULL;
+ }
+ if(host_entry == NULL) {
+ printf("mount error: could not find target server. TCP name %s not found\n", unc_name);
+ return NULL;
+ } else {
+ /* BB should we pass an alternate version of the share name as Unicode */
+ /* BB what about ipv6? BB */
+ /* BB add retries with alternate servers in list */
+
+ memcpy(&server_ipaddr.s_addr, host_entry->h_addr, 4);
+
+ ipaddress_string = inet_ntoa(server_ipaddr);
+ if(ipaddress_string == NULL) {
+ printf("mount error: could not get valid ip address for target server\n");
+ return NULL;
+ }
+ return ipaddress_string;
+ }
+ } 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 }
+};
+
+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;
+ char * ipaddr = NULL;
+ char * uuid = NULL;
+ char * mountpoint;
+ char * options;
+ char * resolved_path;
+ char * temp;
+ int rc;
+ int rsize = 0;
+ int wsize = 0;
+ int nomtab = 0;
+ int uid = 0;
+ int gid = 0;
+ int optlen = 0;
+ int orgoptlen = 0;
+ int retry = 0; /* set when we have to retry mount with uppercase */
+ struct stat statbuf;
+ struct utsname sysinfo;
+ struct mntent mountent;
+ FILE * pmntfile;
+
+ /* setlocale(LC_ALL, "");
+ bindtextdomain(PACKAGE, LOCALEDIR);
+ textdomain(PACKAGE); */
+
+ if(argc && argv) {
+ thisprogram = argv[0];
+ }
+ 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 */
+
+ share_name = argv[1];
+ mountpoint = argv[2];
+
+ /* 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(1);
+ case 'n':
+ ++nomtab;
+ break;
+ case 'b':
+ flags |= MS_BIND;
+ break;
+ case 'm':
+ flags |= MS_MOVE;
+ 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':
+ printf ("mount.cifs version: %s.%s%s\n",
+ MOUNT_CIFS_VERSION_MAJOR,
+ MOUNT_CIFS_VERSION_MINOR,
+ MOUNT_CIFS_VENDOR_SUFFIX);
+ if(mountpassword) {
+ memset(mountpassword,0,64);
+ }
+ 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(1);
+ }
+ } else {
+ struct passwd *pw;
+
+ if (!(pw = getpwnam(optarg))) {
+ printf("bad user name \"%s\"\n", optarg);
+ exit(1);
+ }
+ 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(1);
+ }
+ } else {
+ struct group *gr;
+
+ if (!(gr = getgrnam(optarg))) {
+ printf("bad user name \"%s\"\n", optarg);
+ exit(1);
+ }
+ 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 = calloc(65,1);
+ if(mountpassword) {
+ got_password = 1;
+ strncpy(mountpassword,optarg,64);
+ }
+ break;
+ case 'S':
+ get_password_from_file(0 /* stdin */,NULL);
+ break;
+ case 't':
+ break;
+ default:
+ printf("unknown mount option %c\n",c);
+ mount_cifs_usage();
+ exit(1);
+ }
+ }
+
+ if(argc < 3)
+ mount_cifs_usage();
+
+ if (getenv("PASSWD")) {
+ if(mountpassword == NULL)
+ mountpassword = calloc(65,1);
+ if(mountpassword) {
+ strncpy(mountpassword,getenv("PASSWD"),64);
+ 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))
+ return -1;
+ ipaddr = parse_server(&share_name);
+ if((ipaddr == NULL) && (got_ip == 0)) {
+ printf("No ip address specified and hostname not found\n");
+ return -1;
+ }
+
+ /* BB save off path and pop after mount returns? */
+ resolved_path = 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);
+ return -1;
+ }
+
+ if(stat (".", &statbuf)) {
+ printf("mount error: mount point %s does not exist\n",mountpoint);
+ return -1;
+ }
+
+ if (S_ISDIR(statbuf.st_mode) == 0) {
+ printf("mount error: mount point %s is not a directory\n",mountpoint);
+ return -1;
+ }
+
+ 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");
+ return -1;
+ }
+ }
+
+ if(got_user == 0) {
+ user_name = getusername();
+ got_user = 1;
+ }
+
+ if(got_password == 0) {
+ mountpassword = getpass("Password: "); /* BB obsolete */
+ got_password = 1;
+ }
+ /* FIXME launch daemon (handles dfs name resolution and credential change)
+ remember to clear parms and overwrite password field before launching */
+mount_retry:
+ 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");
+ }
+ if(user_name)
+ optlen += strlen(user_name) + 6;
+ if(ipaddr)
+ optlen += strlen(ipaddr) + 4;
+ if(mountpassword)
+ optlen += strlen(mountpassword) + 6;
+ options = malloc(optlen + 10 + 64 /* 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");
+ return -1;
+ }
+
+
+ options[0] = 0;
+ strncat(options,"unc=",4);
+ strcat(options,share_name);
+ /* scan backwards and reverse direction of slash */
+ temp = strrchr(options, '/');
+ if(temp > options + 6)
+ *temp = '\\';
+ if(ipaddr) {
+ strncat(options,",ip=",4);
+ strcat(options,ipaddr);
+ }
+
+ if(user_name) {
+ /* check for syntax like user=domain\user */
+ if(got_domain == 0)
+ domain_name = check_for_domain(&user_name);
+ strncat(options,",user=",6);
+ strcat(options,user_name);
+ }
+ if(retry == 0) {
+ if(domain_name) {
+ /* extra length accounted for in option string above */
+ strncat(options,",domain=",8);
+ strcat(options,domain_name);
+ }
+ }
+ 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);
+ strncat(options,",pass=",6);
+ strcat(options,mountpassword);
+ }
+
+ strncat(options,",ver=",5);
+ strcat(options,MOUNT_CIFS_VERSION_MAJOR);
+
+ if(orgoptions) {
+ strcat(options,",");
+ strcat(options,orgoptions);
+ }
+ if(verboseflag)
+ printf("\nmount.cifs kernel mount options %s \n",options);
+ if(mount(share_name, mountpoint, "cifs", flags, options)) {
+ /* remember to kill daemon on error */
+ char * tmp;
+
+ switch (errno) {
+ case 0:
+ printf("mount failed but no error number set\n");
+ break;
+ case ENODEV:
+ printf("mount error: cifs filesystem not supported by the system\n");
+ break;
+ case ENXIO:
+ if(retry == 0) {
+ retry = 1;
+ tmp = share_name;
+ while (*tmp && !(((unsigned char)tmp[0]) & 0x80)) {
+ *tmp = toupper((unsigned char)*tmp);
+ tmp++;
+ }
+ if(!*tmp) {
+ printf("retrying with upper case share name\n");
+ goto mount_retry;
+ }
+ }
+ default:
+
+ printf("mount error %d = %s\n",errno,strerror(errno));
+ }
+ printf("Refer to the mount.cifs(8) manual page (e.g.man mount.cifs)\n");
+ if(mountpassword) {
+ memset(mountpassword,0,64);
+ }
+ return -1;
+ } else {
+ pmntfile = setmntent(MOUNTED, "a+");
+ if(pmntfile) {
+ mountent.mnt_fsname = share_name;
+ mountent.mnt_dir = mountpoint;
+ mountent.mnt_type = "cifs";
+ mountent.mnt_opts = malloc(220);
+ if(mountent.mnt_opts) {
+ char * mount_user = getusername();
+ memset(mountent.mnt_opts,0,200);
+ if(flags & MS_RDONLY)
+ strcat(mountent.mnt_opts,"ro");
+ else
+ strcat(mountent.mnt_opts,"rw");
+ if(flags & MS_MANDLOCK)
+ strcat(mountent.mnt_opts,",mand");
+ if(flags & MS_NOEXEC)
+ strcat(mountent.mnt_opts,",noexec");
+ if(flags & MS_NOSUID)
+ strcat(mountent.mnt_opts,",nosuid");
+ if(flags & MS_NODEV)
+ strcat(mountent.mnt_opts,",nodev");
+ if(flags & MS_SYNCHRONOUS)
+ strcat(mountent.mnt_opts,",synch");
+ if(mount_user) {
+ if(getuid() != 0) {
+ strcat(mountent.mnt_opts,",user=");
+ strcat(mountent.mnt_opts,mount_user);
+ }
+ free(mount_user);
+ }
+ }
+ mountent.mnt_freq = 0;
+ mountent.mnt_passno = 0;
+ rc = addmntent(pmntfile,&mountent);
+ endmntent(pmntfile);
+ if(mountent.mnt_opts)
+ free(mountent.mnt_opts);
+ } else {
+ printf("could not update mount table\n");
+ }
+ }
+ if(mountpassword) {
+ int len = strlen(mountpassword);
+ memset(mountpassword,0,len);
+ free(mountpassword);
+ }
+
+ if(options) {
+ memset(options,0,optlen);
+ free(options);
+ }
+
+ if(orgoptions) {
+ memset(orgoptions,0,orgoptlen);
+ free(orgoptions);
+ }
+ if(resolved_path) {
+ free(resolved_path);
+ }
+
+ if(free_share_name) {
+ free(share_name);
+ }
+ return 0;
+}
+
projects / samba / blobdiff