static int parse_options(char ** optionsp, int * filesys_flags)
{
const char * data;
char * percent_char = NULL;
char * value = NULL;
char * next_keyword = NULL;
char * out = NULL;
int out_len = 0;
int word_len;
int rc = 0;
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 = (char *)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, "sec", 3) == 0) {
if (value) {
if (!strcmp(value, "none"))
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) {
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;
} 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(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;
}
free(*optionsp);
*optionsp = out;
return 0;
}
static int parse_options(char * options, int * filesys_flags)
{
char * data;
char * percent_char = 0;
char * value = 0;
char * next_keyword = 0;
int rc = 0;
if (!options)
return 1;
else
data = options;
if(verboseflag)
printf("\n parsing options: %s", options);
/* 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,',');
/* temporarily null terminate end of keyword=value pair */
if(next_keyword)
*next_keyword = 0;
/* if (!*data)
continue; */
/* temporarily null terminate keyword to make keyword and value distinct */
if ((value = strchr(data, '=')) != NULL) {
*value = '\0';
value++;
}
if (strncmp(data, "user", 4) == 0) {
if (!value || !*value) {
printf("invalid or missing username\n");
return 1; /* needs_arg; */
}
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++;
}
}
}
} 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) {
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;
}
} else if (strncmp(data, "gid", 3) == 0) {
if (value && *value) {
got_gid = 1;
}
/* 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, "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;
} else if (strncmp(data, "ro", 2) == 0) {
*filesys_flags |= MS_RDONLY;
} else if (strncmp(data, "rw", 2) == 0) {
*filesys_flags &= ~MS_RDONLY;
} /* 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 */
/* move to next option */
data = next_keyword+1;
/* put overwritten equals sign back */
if(value) {
value--;
*value = '=';
}
/* put previous overwritten comma back */
if(next_keyword)
*next_keyword = ',';
else
data = 0;
}
return 0;
}