/*
Mount helper utility for Linux CIFS VFS (virtual filesystem) client
- Copyright (C) 2003,2005 Steve French (sfrench@us.ibm.com)
+ 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 2 of the License, or
+ 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,
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. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#include <string.h>
#include <mntent.h>
#include <fcntl.h>
+#include <limits.h>
+#include "mount.h"
#define MOUNT_CIFS_VERSION_MAJOR "1"
-#define MOUNT_CIFS_VERSION_MINOR "10"
+#define MOUNT_CIFS_VERSION_MINOR "12"
#ifndef MOUNT_CIFS_VENDOR_SUFFIX
#ifdef _SAMBA_BUILD_
#endif /* _SAMBA_BUILD_ */
#endif /* MOUNT_CIFS_VENDOR_SUFFIX */
+#ifdef _SAMBA_BUILD_
+#include "include/config.h"
+#endif
+
#ifndef MS_MOVE
#define MS_MOVE 8192
#endif
#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_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;
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
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\tmapchars,nomapchars,nolock,servernetbiosname=<SRV_RFC1001NAME>");
+ printf("\n\tdirectio,nounix,cifsacl,sec=<authentication mechanism>,sign");
printf("\n\nOptions not needed for servers supporting CIFS Unix extensions");
printf("\n\t(e.g. unneeded for mounts to most Samba versions):");
printf("\n\tuid=<uid>,gid=<gid>,dir_mode=<mode>,file_mode=<mode>,sfu");
printf("\n\nRarely used options:");
printf("\n\tport=<tcpport>,rsize=<size>,wsize=<size>,unc=<unc_name>,ip=<ip_address>,");
printf("\n\tdev,nodev,nouser_xattr,netbiosname=<OUR_RFC1001NAME>,hard,soft,intr,");
- printf("\n\tnointr,ignorecase,noposixpaths,noacl");
+ printf("\n\tnointr,ignorecase,noposixpaths,noacl,prefixpath=<path>,nobrl");
+ printf("\n\tin6_addr");
printf("\n\nOptions are described in more detail in the manual page");
printf("\n\tman 8 mount.cifs\n");
printf("\nTo display the version number of the mount helper:");
printf("\n\t%s -V\n",thisprogram);
- if(mountpassword) {
- memset(mountpassword,0,64);
- free(mountpassword);
- }
- exit(1);
+ SAFE_FREE(mountpassword);
}
/* caller frees username if necessary */
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;
line_buf = (char *)malloc(4096);
if(line_buf == NULL) {
fclose(fs);
- return -ENOMEM;
+ return ENOMEM;
}
while(fgets(line_buf,4096,fs)) {
/* go past equals sign */
temp_val++;
for(length = 0;length<4087;length++) {
- if(temp_val[length] == '\n')
+ 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);
- if(mountpassword) {
- memset(mountpassword,0,64);
- }
- exit(1);
+ 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 */
- strncpy(user_name,temp_val, length);
+ strlcpy(user_name,temp_val, length+1);
}
}
} else if (strncasecmp("password",line_buf+i,8) == 0) {
if(temp_val) {
/* go past equals sign */
temp_val++;
- for(length = 0;length<65;length++) {
- if(temp_val[length] == '\n')
+ for(length = 0;length<MOUNT_PASSWD_SIZE+1;length++) {
+ if ((temp_val[length] == '\n')
+ || (temp_val[length] == '\0')) {
+ temp_val[length] = '\0';
break;
+ }
}
- if(length > 64) {
+ if(length > MOUNT_PASSWD_SIZE) {
printf("mount.cifs failed: password in credentials file too long\n");
memset(line_buf,0, 4096);
- if(mountpassword) {
- memset(mountpassword,0,64);
- }
- exit(1);
+ exit(EX_USAGE);
} else {
if(mountpassword == NULL) {
- mountpassword = (char *)calloc(65,1);
+ mountpassword = (char *)calloc(MOUNT_PASSWD_SIZE+1,1);
} else
- memset(mountpassword,0,64);
+ memset(mountpassword,0,MOUNT_PASSWD_SIZE);
if(mountpassword) {
- strncpy(mountpassword,temp_val,length);
+ strlcpy(mountpassword,temp_val,MOUNT_PASSWD_SIZE+1);
got_password = 1;
}
}
temp_val++;
if(verboseflag)
printf("\nDomain %s\n",temp_val);
- for(length = 0;length<65;length++) {
- if(temp_val[length] == '\n')
- break;
+ for(length = 0;length<DOMAIN_SIZE+1;length++) {
+ if ((temp_val[length] == '\n')
+ || (temp_val[length] == '\0')) {
+ temp_val[length] = '\0';
+ break;
+ }
}
- if(length > 64) {
+ if(length > DOMAIN_SIZE) {
printf("mount.cifs failed: domain in credentials file too long\n");
- if(mountpassword) {
- memset(mountpassword,0,64);
- }
- exit(1);
+ exit(EX_USAGE);
} else {
if(domain_name == NULL) {
- domain_name = (char *)calloc(65,1);
+ domain_name = (char *)calloc(DOMAIN_SIZE+1,1);
} else
- memset(domain_name,0,64);
+ memset(domain_name,0,DOMAIN_SIZE);
if(domain_name) {
- strncpy(domain_name,temp_val,length);
+ strlcpy(domain_name,temp_val,DOMAIN_SIZE+1);
got_domain = 1;
}
}
}
fclose(fs);
- if(line_buf) {
- memset(line_buf,0,4096);
- free(line_buf);
- }
+ SAFE_FREE(line_buf);
return 0;
}
char c;
if(mountpassword == NULL)
- mountpassword = (char *)calloc(65,1);
+ mountpassword = (char *)calloc(MOUNT_PASSWD_SIZE+1,1);
else
- memset(mountpassword, 0, 64);
+ memset(mountpassword, 0, MOUNT_PASSWD_SIZE);
if (mountpassword == NULL) {
printf("malloc failed\n");
- exit(1);
+ exit(EX_SYSERR);
}
if(filename != NULL) {
if(file_descript < 0) {
printf("mount.cifs failed. %s attempting to open password file %s\n",
strerror(errno),filename);
- exit(1);
+ exit(EX_SYSERR);
}
}
/* else file already open and fd provided */
- for(i=0;i<64;i++) {
+ for(i=0;i<MOUNT_PASSWD_SIZE;i++) {
rc = read(file_descript,&c,1);
if(rc < 0) {
printf("mount.cifs failed. Error %s reading password file\n",strerror(errno));
- memset(mountpassword,0,64);
if(filename != NULL)
close(file_descript);
- exit(1);
+ exit(EX_SYSERR);
} else if(rc == 0) {
if(mountpassword[0] == 0) {
if(verboseflag)
break;
} else /* read valid character */ {
if((c == 0) || (c == '\n')) {
+ mountpassword[i] = '\0';
break;
} else
mountpassword[i] = c;
}
}
- if((i == 64) && (verboseflag)) {
- printf("\nWarning: password longer than 64 characters specified in cifs password file");
+ if((i == MOUNT_PASSWD_SIZE) && (verboseflag)) {
+ printf("\nWarning: password longer than %d characters specified in cifs password file",
+ MOUNT_PASSWD_SIZE);
}
got_password = 1;
if(filename != NULL) {
int out_len = 0;
int word_len;
int rc = 0;
+ char user[32];
+ char group[32];
if (!optionsp || !*optionsp)
return 1;
/* BB fixme check for separator override BB */
+ if (getuid()) {
+ got_uid = 1;
+ snprintf(user,sizeof(user),"%u",getuid());
+ got_gid = 1;
+ snprintf(group,sizeof(group),"%u",getgid());
+ }
+
/* while ((data = strsep(&options, ",")) != NULL) { */
while(data != NULL) {
/* check if ends with trailing comma */
goto nocopy;
} else {
printf("username specified with no parameter\n");
+ SAFE_FREE(out);
return 1; /* needs_arg; */
}
} else {
if(percent_char) {
*percent_char = ',';
if(mountpassword == NULL)
- mountpassword = (char *)calloc(65,1);
+ mountpassword = (char *)calloc(MOUNT_PASSWD_SIZE+1,1);
if(mountpassword) {
if(got_password)
printf("\nmount.cifs warning - password specified twice\n");
got_password = 1;
percent_char++;
- strncpy(mountpassword, percent_char,64);
+ strlcpy(mountpassword, percent_char,MOUNT_PASSWD_SIZE+1);
/* remove password from username */
while(*percent_char != 0) {
*percent_char = ',';
domain_name = check_for_domain(&value);
} else {
printf("username too long\n");
+ SAFE_FREE(out);
return 1;
}
}
printf("\npassword specified twice, ignoring second\n");
} else
got_password = 1;
- } else if (strnlen(value, 17) < 17) {
+ } else if (strnlen(value, MOUNT_PASSWD_SIZE) < MOUNT_PASSWD_SIZE) {
if(got_password)
printf("\nmount.cifs warning - password specified twice\n");
got_password = 1;
} else {
printf("password too long\n");
+ SAFE_FREE(out);
return 1;
}
+ } else if (strncmp(data, "sec", 3) == 0) {
+ if (value) {
+ if (!strncmp(value, "none", 4) ||
+ !strncmp(value, "krb5", 4))
+ got_password = 1;
+ }
} else if (strncmp(data, "ip", 2) == 0) {
if (!value || !*value) {
printf("target ip address argument missing");
- } else if (strnlen(value, 35) < 35) {
+ } else if (strnlen(value, MAX_ADDRESS_LEN) <= MAX_ADDRESS_LEN) {
if(verboseflag)
printf("ip address %s override specified\n",value);
got_ip = 1;
} else {
printf("ip address too long\n");
+ SAFE_FREE(out);
return 1;
}
} else if ((strncmp(data, "unc", 3) == 0)
|| (strncmp(data, "path", 4) == 0)) {
if (!value || !*value) {
printf("invalid path to network resource\n");
+ SAFE_FREE(out);
return 1; /* needs_arg; */
} else if(strnlen(value,5) < 5) {
printf("UNC name too short");
got_unc = 1;
} else if (strncmp(value, "\\\\", 2) != 0) {
printf("UNC Path does not begin with // or \\\\ \n");
+ SAFE_FREE(out);
return 1;
} else {
if(got_unc)
}
} else {
printf("CIFS: UNC name too long\n");
+ SAFE_FREE(out);
return 1;
}
- } else if ((strncmp(data, "domain", 3) == 0)
- || (strncmp(data, "workgroup", 5) == 0)) {
+ } else if ((strncmp(data, "dom" /* domain */, 3) == 0)
+ || (strncmp(data, "workg", 5) == 0)) {
+ /* note this allows for synonyms of "domain"
+ such as "DOM" and "dom" and "workgroup"
+ and "WORKGRP" etc. */
if (!value || !*value) {
printf("CIFS: invalid domain name\n");
+ SAFE_FREE(out);
return 1; /* needs_arg; */
}
- if (strnlen(value, 65) < 65) {
+ if (strnlen(value, DOMAIN_SIZE+1) < DOMAIN_SIZE+1) {
got_domain = 1;
} else {
printf("domain name too long\n");
+ SAFE_FREE(out);
return 1;
}
} else if (strncmp(data, "cred", 4) == 0) {
if (value && *value) {
rc = open_cred_file(value);
if(rc) {
- printf("error %d opening credential file %s\n",rc, value);
+ printf("error %d (%s) opening credential file %s\n",
+ rc, strerror(rc), value);
+ SAFE_FREE(out);
return 1;
}
} else {
printf("invalid credential file name specified\n");
+ SAFE_FREE(out);
return 1;
}
} else if (strncmp(data, "uid", 3) == 0) {
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);
+ exit(EX_USAGE);
}
- sprintf(temp, "%u", pw->pw_uid);
- value = temp;
- endpwent();
+ snprintf(user, sizeof(user), "%u", pw->pw_uid);
+ } else {
+ strlcpy(user,value,sizeof(user));
}
}
+ goto nocopy;
} else if (strncmp(data, "gid", 3) == 0) {
if (value && *value) {
got_gid = 1;
if (!isdigit(*value)) {
struct group *gr;
- static char temp[32];
if (!(gr = getgrnam(value))) {
printf("bad group name \"%s\"\n", value);
- exit(1);
+ exit(EX_USAGE);
}
- sprintf(temp, "%u", gr->gr_gid);
- value = temp;
- endpwent();
+ 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;
}
} 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;
}
} 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;
+ 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) {
out = (char *)realloc(out, out_len + word_len + 2);
if (out == NULL) {
perror("malloc");
- exit(1);
+ exit(EX_SYSERR);
+ }
+
+ if (out_len) {
+ strlcat(out, ",", out_len + word_len + 2);
+ out_len++;
}
- if (out_len)
- out[out_len++] = ',';
if (value)
- sprintf(out + out_len, "%s=%s", data, value);
+ snprintf(out + out_len, word_len + 1, "%s=%s", data, value);
else
- sprintf(out + out_len, "%s", data);
+ snprintf(out + out_len, word_len + 1, "%s", data);
out_len = strlen(out);
nocopy:
data = next_keyword;
}
- free(*optionsp);
+
+ /* 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;
}
if(number_of_commas == 0)
return;
- if(number_of_commas > 64) {
+ if(number_of_commas > MOUNT_PASSWD_SIZE) {
/* would otherwise overflow the mount options buffer */
printf("\nInvalid password. Password contains too many commas.\n");
return;
}
new_pass_buf[len+number_of_commas] = 0;
- free(*ppasswrd);
+ SAFE_FREE(*ppasswrd);
*ppasswrd = new_pass_buf;
return;
if(domainnm == NULL)
return NULL;
- strcpy(domainnm,*ppuser);
+ strlcpy(domainnm,*ppuser,len+1);
/* move_string(*ppuser, usernm+1) */
len = strlen(usernm+1);
return domainnm;
}
+/* replace all occurances of "from" in a string with "to" */
+static void replace_char(char *string, char from, char to, int maxlen)
+{
+ char *lastchar = string + maxlen;
+ while (string) {
+ string = strchr(string, from);
+ if (string) {
+ *string = to;
+ if (string >= lastchar)
+ return;
+ }
+ }
+}
+
/* Note that caller frees the returned buffer if necessary */
-static char * parse_server(char ** punc_name)
+static struct addrinfo *
+parse_server(char ** punc_name)
{
char * unc_name = *punc_name;
- int length = strnlen(unc_name,1024);
+ int length = strnlen(unc_name, MAX_UNC_LEN);
char * share;
- char * ipaddress_string = NULL;
- struct hostent * host_entry = NULL;
- struct in_addr server_ipaddr;
+ struct addrinfo *addrlist;
+ int rc;
- if(length > 1023) {
+ if(length > (MAX_UNC_LEN - 1)) {
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 ((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) {
/* check for nfs syntax ie server:share */
share = strchr(unc_name,':');
if(share) {
- free_share_name = 1;
*punc_name = (char *)malloc(length+3);
if(*punc_name == NULL) {
/* put the original string back if
*punc_name = unc_name;
return NULL;
}
-
*share = '/';
- strncpy((*punc_name)+2,unc_name,length);
+ 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;
unc_name[0] = '/';
unc_name[1] = '/';
unc_name += 2;
- if ((share = strchr(unc_name, '/')) ||
- (share = strchr(unc_name,'\\'))) {
+
+ /* 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) {
- host_entry = gethostbyname(unc_name);
+ 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 the slash back */
- if ((prefixpath = strchr(share, '/'))) {
+ *(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 */
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);
+ /* BB should we pass an alternate version of the share name as Unicode */
- 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;
- }
+ 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");
{ 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;
- char * ipaddr = NULL;
+ const char * ipaddr = NULL;
char * uuid = NULL;
char * mountpoint = NULL;
- char * options;
- char * resolved_path;
+ char * options = NULL;
+ char * optionstail;
+ char * resolved_path = NULL;
char * temp;
- int rc;
+ char * dev_name;
+ int rc = 0;
int rsize = 0;
int wsize = 0;
int nomtab = 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, "");
thisprogram = argv[0];
} else {
mount_cifs_usage();
- exit(1);
+ exit(EX_USAGE);
}
if(thisprogram == NULL)
printf(" node: %s machine: %s sysname %s domain %s\n", sysinfo.nodename,sysinfo.machine,sysinfo.sysname,sysinfo.domainname);
#endif */
if(argc > 2) {
- share_name = argv[1];
+ 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 */
case '?':
case 'h': /* help */
mount_cifs_usage ();
- exit(1);
+ exit(0);
case 'n':
- ++nomtab;
- break;
+ ++nomtab;
+ break;
case 'b':
#ifdef MS_BIND
flags |= MS_BIND;
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);
- }
+ case 'V':
+ print_cifs_mount_version();
exit (0);
case 'w':
flags &= ~MS_RDONLY;
uid = strtoul(optarg, &ep, 10);
if (*ep) {
printf("bad uid value \"%s\"\n", optarg);
- exit(1);
+ exit(EX_USAGE);
}
} else {
struct passwd *pw;
if (!(pw = getpwnam(optarg))) {
printf("bad user name \"%s\"\n", optarg);
- exit(1);
+ exit(EX_USAGE);
}
uid = pw->pw_uid;
endpwent();
gid = strtoul(optarg, &ep, 10);
if (*ep) {
printf("bad gid value \"%s\"\n", optarg);
- exit(1);
+ exit(EX_USAGE);
}
} else {
struct group *gr;
if (!(gr = getgrnam(optarg))) {
printf("bad user name \"%s\"\n", optarg);
- exit(1);
+ exit(EX_USAGE);
}
gid = gr->gr_gid;
endpwent();
break;
case 'p':
if(mountpassword == NULL)
- mountpassword = (char *)calloc(65,1);
+ mountpassword = (char *)calloc(MOUNT_PASSWD_SIZE+1,1);
if(mountpassword) {
got_password = 1;
- strncpy(mountpassword,optarg,64);
+ strlcpy(mountpassword,optarg,MOUNT_PASSWD_SIZE+1);
}
break;
case 'S':
break;
case 't':
break;
+ case 'f':
+ ++fakemnt;
+ break;
default:
printf("unknown mount option %c\n",c);
mount_cifs_usage();
- exit(1);
+ exit(EX_USAGE);
}
}
- if((argc < 3) || (share_name == NULL) || (mountpoint == NULL)) {
+ if((argc < 3) || (dev_name == NULL) || (mountpoint == NULL)) {
mount_cifs_usage();
- exit(1);
+ exit(EX_USAGE);
}
if (getenv("PASSWD")) {
if(mountpassword == NULL)
- mountpassword = (char *)calloc(65,1);
+ mountpassword = (char *)calloc(MOUNT_PASSWD_SIZE+1,1);
if(mountpassword) {
- strncpy(mountpassword,getenv("PASSWD"),64);
+ strlcpy(mountpassword,getenv("PASSWD"),MOUNT_PASSWD_SIZE+1);
got_password = 1;
}
} else if (getenv("PASSWD_FD")) {
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)) {
+ 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");
- return -1;
+ rc = EX_USAGE;
+ goto mount_exit;
}
/* BB save off path and pop after mount returns? */
}
if(chdir(mountpoint)) {
printf("mount error: can not change directory into mount target %s\n",mountpoint);
- return -1;
+ rc = EX_USAGE;
+ goto mount_exit;
}
if(stat (".", &statbuf)) {
printf("mount error: mount point %s does not exist\n",mountpoint);
- return -1;
+ 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);
- return -1;
+ rc = EX_USAGE;
+ goto mount_exit;
}
if((getuid() != 0) && (geteuid() == 0)) {
#endif
} else {
printf("mount error: permission denied or not superuser and mount.cifs not installed SUID\n");
- return -1;
+ exit(EX_USAGE);
}
}
if(got_user == 0) {
- user_name = getusername();
+ /* 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) {
- mountpassword = getpass("Password: "); /* BB obsolete */
+ 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 */
-mount_retry:
if(orgoptions) {
optlen = strlen(orgoptions);
orgoptlen = optlen;
else {
printf("No server share name specified\n");
printf("\nMounting the DFS root for server not implemented yet\n");
- exit(1);
+ exit(EX_USAGE);
}
if(user_name)
optlen += strlen(user_name) + 6;
- if(ipaddr)
- optlen += strlen(ipaddr) + 4;
+ optlen += MAX_ADDRESS_LEN + 4;
if(mountpassword)
optlen += strlen(mountpassword) + 6;
- options = (char *)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 */);
+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");
- return -1;
+ exit(EX_SYSERR);
}
-
- options[0] = 0;
- strncat(options,"unc=",4);
- strcat(options,share_name);
+ 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(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);
+ strlcat(options,",user=",options_size);
+ strlcat(options,user_name,options_size);
}
if(retry == 0) {
- if(domain_name) {
+ if(domain_name) {
/* extra length accounted for in option string above */
- strncat(options,",domain=",8);
- strcat(options,domain_name);
+ strlcat(options,",domain=",options_size);
+ strlcat(options,domain_name,options_size);
}
}
if(mountpassword) {
/* if(sep is not set)*/
if(retry == 0)
check_for_comma(&mountpassword);
- strncat(options,",pass=",6);
- strcat(options,mountpassword);
+ strlcat(options,",pass=",options_size);
+ strlcat(options,mountpassword,options_size);
}
- strncat(options,",ver=",5);
- strcat(options,MOUNT_CIFS_VERSION_MAJOR);
+ strlcat(options,",ver=",options_size);
+ strlcat(options,MOUNT_CIFS_VERSION_MAJOR,options_size);
if(orgoptions) {
- strcat(options,",");
- strcat(options,orgoptions);
+ strlcat(options,",",options_size);
+ strlcat(options,orgoptions,options_size);
}
if(prefixpath) {
- strncat(options,",prefixpath=",12);
- strcat(options,prefixpath); /* no need to cat the / */
- }
+ 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);
- if(mount(share_name, mountpoint, "cifs", flags, options)) {
- /* remember to kill daemon on error */
- char * tmp;
+ /* 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 0:
- printf("mount failed but no error number set\n");
+ 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");
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) {
+ if (uppercase_string(dev_name) &&
+ uppercase_string(share_name) &&
+ uppercase_string(prefixpath)) {
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");
- rc = -1;
+ 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;
- } else {
- pmntfile = setmntent(MOUNTED, "a+");
- if(pmntfile) {
- mountent.mnt_fsname = share_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)
- 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);
- }
+ }
+
+ 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);
- if(mountent.mnt_opts)
- free(mountent.mnt_opts);
- } else {
- printf("could not update mount table\n");
}
}
- rc = 0;
+ 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);
- free(mountpassword);
+ SAFE_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 rc;
+ if (addrhead)
+ freeaddrinfo(addrhead);
+ SAFE_FREE(options);
+ SAFE_FREE(orgoptions);
+ SAFE_FREE(resolved_path);
+ SAFE_FREE(share_name);
+ exit(rc);
}
-
git.samba.org / sfrench / samba-autobuild / .git / blobdiff