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Vernooij Date: Tue, 2 Jun 2009 23:07:59 +0200 Subject: Move mount.cifs/umount.cifs to the top level and remove the outdated copy in Samba 4. --- client/mount.cifs.c | 1539 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 1539 insertions(+) create mode 100644 client/mount.cifs.c (limited to 'client/mount.cifs.c') diff --git a/client/mount.cifs.c b/client/mount.cifs.c new file mode 100644 index 0000000000..1b94486a1a --- /dev/null +++ b/client/mount.cifs.c @@ -0,0 +1,1539 @@ +/* + 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 "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); +} -- cgit