void load_local_addresses(void)
{
FILE *fp;
char buff[MAX_BUFF];
struct IP src_address;
fp = fopen(LOCAL_ADDRESSES, "rt");
if(fp == NULL) {
log(LOG_ERROR, "unable to open local addresses file [%s]\n",
LOCAL_ADDRESSES);
dodo_mode = 1;
return;
}
log(LOG_INFO, "Loading IP List\n");
while(!dodo_mode && (fgets(buff, MAX_BUFF, fp) != NULL)) {
/* skip blank lines and comments */
if((strncmp(buff, "#", 1) == 0) || (strncmp(buff, "\n", 1) == 0))
continue;
if(strlen(buff) != 1) {
/* chop newline */
buff[strlen(buff) - 1] = '\0';
if(get_ip(buff, &src_address)) {
log(LOG_ERROR, "Invalid IP network [%s] in config file\n", buff);
/* there's no need to set 'dodo_mode' here because we can
continue quite happily. */
} else {
add_to_ip_list(src_address);
}
}
}
fclose(fp);
}
/* parse the squirm.conf file
returns 1 on success, 0 on failure
*/
int parse_squirm_conf(char *filename)
{
FILE *fp;
char buff[MAX_BUFF];
struct cidr src_cidr;
char *tmp1, *tmp2, *pattern_filename, *fq_pattern_filename;
struct subnet_block *curr_block;
int methods;
pattern_filename = NULL;
curr_block = NULL;
fp = fopen(filename, "rt");
init_lists();
if(fp == NULL) {
logprint(LOG_ERROR, "unable to open configuration file [%s]\n", filename);
dodo_mode = 1;
return 0;
}
logprint(LOG_INFO, "processing configuration file [%s]\n", filename);
while(!dodo_mode && (fgets(buff, MAX_BUFF, fp) != NULL)) {
/* skip blank lines and comments */
if((strncmp(buff, "#", 1) == 0) || (strncmp(buff, "\n", 1) == 0))
continue;
if(strlen(buff) != 1) {
/* chop newline */
buff[strlen(buff) - 1] = '\0';
/* do our stuff with the line */
/* we can have the following appear
begin
network
log
abort-log
pattern
end
*/
/* begin */
if(starts_with(buff, "begin") == 1) {
if (curr_block != NULL) {
logprint(LOG_ERROR, "begin keyword found within block in %s\n", filename);
dodo_mode = 1;
return 0;
} else {
curr_block = add_subnet_block();
}
continue;
}
/* network */
if (starts_with(buff, "network") == 1) {
if (curr_block == NULL) {
logprint(LOG_ERROR, "network keyword found outside of block in %s\n", filename);
dodo_mode = 1;
return 0;
} else {
/* we need to get the network cidr from after the keyword network */
if(load_cidr(strpbrk(buff, "0123456789"), &src_cidr)) {
logprint(LOG_ERROR, "Invalid IP network [%s] in config file\n", buff);
dodo_mode = 1;
return 0;
} else {
add_to_ip_list(src_cidr, curr_block);
}
}
continue;
}
/* check for an optional abort-log file name */
if (starts_with(buff, "abort-log") == 1) {
if (curr_block == NULL) {
logprint(LOG_ERROR, "abort-log keyword found outside of block in %s\n", filename);
dodo_mode = 1;
return 0;
} else {
curr_block->abort_log_name = gen_fq_name(get_stuff_after_keyword(buff), LOGDIR);
if (curr_block->abort_log_name == NULL) {
logprint(LOG_ERROR, "couldn't allocate memory in parse_squirm_conf()\n");
dodo_mode = 1;
return 0;
}
}
continue;
}
/* check for an optional log file name (logs matches) */
if (starts_with(buff, "log")) {
if (curr_block == NULL) {
logprint(LOG_ERROR, "log keyword found outside of block in %s\n", filename);
dodo_mode = 1;
return 0;
} else {
curr_block->log_name = gen_fq_name(get_stuff_after_keyword(buff), LOGDIR);
if (curr_block->log_name == NULL) {
logprint(LOG_ERROR, "couldn't allocate memory in parse_squirm_conf()\n");
dodo_mode = 1;
return 0;
}
}
continue;
}
/* checking for a pattern filename */
if (starts_with(buff, "pattern") == 1) {
if (curr_block == NULL) {
logprint(LOG_ERROR, "pattern keyword found outside of block in %s\n", filename);
dodo_mode = 1;
return -1;
} else {
/* format is pattern filename method[, method...] */
tmp1 = get_stuff_after_keyword (buff);
/* find where white space begins again */
tmp2 = index(tmp1, ' ');
if (tmp2 == NULL) {
/* no white space at end, but there must be white space between the
filename and obligatory method */
logprint(LOG_ERROR, "error parsing pattern file name in %s\n", filename);
dodo_mode = 1;
return -1;
} else {
pattern_filename = (char *)malloc((tmp2 - tmp1) * sizeof(char)+1);
strncpy(pattern_filename, tmp1, tmp2-tmp1);
pattern_filename[tmp2-tmp1] = '\0';
}
if (pattern_filename == NULL) {
logprint(LOG_ERROR, "couldn't allocate memory in parse_squirm_conf()\n");
dodo_mode = 1;
return 0;
}
fq_pattern_filename = gen_fq_name(pattern_filename, ETCDIR);
if (fq_pattern_filename == NULL) {
logprint(LOG_ERROR, "couldn't allocate memory in parse_squirm_conf()\n");
dodo_mode = 1;
return 0;
}
free(pattern_filename);
/* now we start looking for methods */
tmp1 = tmp2;
methods = 0;
while (tmp1 != NULL) {
tmp1 = trim_leading_white_space(tmp1);
if (tmp1 == NULL) {
break;
}
if (strncasecmp(tmp1, "get", min(strlen("get"), strlen(tmp1))) == 0) {
methods |= GET;
tmp1 += strlen("get");
}
else if (strncasecmp(tmp1,"put", min(strlen("put"), strlen(tmp1))) == 0) {
methods |= PUT;
tmp1 += strlen("put");
}
else if (strncasecmp(tmp1,"post", min(strlen("post"), strlen(tmp1))) == 0) {
methods |= POST;
tmp1 += strlen("post");
}
else if (strncasecmp(tmp1, "head", min(strlen("head"), strlen(tmp1))) == 0) {
methods |= HEAD;
tmp1 += strlen("head");
}
else if (strncasecmp(tmp1, "all", min(strlen("all"), strlen(tmp1))) == 0) {
methods |= ALL;
tmp1 += strlen("all");
}
tmp1 = index(tmp1, ',');
if (tmp1 != NULL) {
tmp1++;
}
}
/* insert all the information */
if (add_pattern_file(fq_pattern_filename, curr_block, methods) == -1) {
logprint(LOG_ERROR, "couldn't parse pattern file %s\n", fq_pattern_filename);
dodo_mode = 1;
return 0;
}
free(fq_pattern_filename);
}
continue;
}
/* check for the presence of an end */
if (strstr(buff, "end") != NULL) {
if (curr_block == NULL) {
logprint(LOG_ERROR, "found keyword end outside of block in file %s\n", filename);
dodo_mode = 1;
return -1;
} else {
curr_block = NULL;
}
continue;
}
/* oops... not a valid option */
logprint(LOG_ERROR, "found garbage [%s] in configuration file [%s]\n", buff, filename);
}
}
fclose(fp);
return 1;
}
