blob: 46ee2f007127594e8c369c6e8bdd09101aa4d833 [file] [log] [blame] [edit]
/* Copyright (C) 2005 Red Hat, Inc. */
struct semanage_port;
struct semanage_port_key;
typedef struct semanage_port record_t;
typedef struct semanage_port_key record_key_t;
#define DBASE_RECORD_DEFINED
struct dbase_file;
typedef struct dbase_file dbase_t;
#define DBASE_DEFINED
#include <stdlib.h>
#include <stdio.h>
#include <strings.h>
#include <semanage/handle.h>
#include "port_internal.h"
#include "context_internal.h"
#include "database_file.h"
#include "parse_utils.h"
#include "debug.h"
static int port_print(semanage_handle_t * handle,
semanage_port_t * port, FILE * str)
{
char *con_str = NULL;
int low = semanage_port_get_low(port);
int high = semanage_port_get_high(port);
int proto = semanage_port_get_proto(port);
const char *proto_str = semanage_port_get_proto_str(proto);
semanage_context_t *con = semanage_port_get_con(port);
if (fprintf(str, "portcon %s ", proto_str) < 0)
goto err;
if (low == high) {
if (fprintf(str, "%d ", low) < 0)
goto err;
} else {
if (fprintf(str, "%d - %d ", low, high) < 0)
goto err;
}
if (semanage_context_to_string(handle, con, &con_str) < 0)
goto err;
if (fprintf(str, "%s\n", con_str) < 0)
goto err;
free(con_str);
return STATUS_SUCCESS;
err:
ERR(handle, "could not print port range %u - %u (%s) to stream",
low, high, proto_str);
free(con_str);
return STATUS_ERR;
}
static int port_parse(semanage_handle_t * handle,
parse_info_t * info, semanage_port_t * port)
{
int low, high;
char *str = NULL;
semanage_context_t *con = NULL;
if (parse_skip_space(handle, info) < 0)
goto err;
if (!info->ptr)
goto last;
/* Header */
if (parse_assert_str(handle, info, "portcon") < 0)
goto err;
if (parse_assert_space(handle, info) < 0)
goto err;
/* Protocol */
if (parse_fetch_string(handle, info, &str, ' ') < 0)
goto err;
if (!strcasecmp(str, "tcp"))
semanage_port_set_proto(port, SEMANAGE_PROTO_TCP);
else if (!strcasecmp(str, "udp"))
semanage_port_set_proto(port, SEMANAGE_PROTO_UDP);
else {
ERR(handle, "invalid protocol \"%s\" (%s: %u):\n%s", str,
info->filename, info->lineno, info->orig_line);
goto err;
}
free(str);
str = NULL;
/* Range/Port */
if (parse_assert_space(handle, info) < 0)
goto err;
if (parse_fetch_int(handle, info, &low, '-') < 0)
goto err;
/* If range (-) does not follow immediately, require a space
* In other words, the space here is optional, but only
* in the ranged case, not in the single port case,
* so do a custom test */
if (*(info->ptr) && *(info->ptr) != '-') {
if (parse_assert_space(handle, info) < 0)
goto err;
}
if (parse_optional_ch(info, '-') != STATUS_NODATA) {
if (parse_skip_space(handle, info) < 0)
goto err;
if (parse_fetch_int(handle, info, &high, ' ') < 0)
goto err;
if (parse_assert_space(handle, info) < 0)
goto err;
semanage_port_set_range(port, low, high);
} else
semanage_port_set_port(port, low);
/* Port context */
if (parse_fetch_string(handle, info, &str, ' ') < 0)
goto err;
if (semanage_context_from_string(handle, str, &con) < 0) {
ERR(handle, "invalid security context \"%s\" (%s: %u)\n%s",
str, info->filename, info->lineno, info->orig_line);
goto err;
}
if (con == NULL) {
ERR(handle, "<<none>> context is not valid "
"for ports (%s: %u):\n%s", info->filename,
info->lineno, info->orig_line);
goto err;
}
free(str);
str = NULL;
if (semanage_port_set_con(handle, port, con) < 0)
goto err;
if (parse_assert_space(handle, info) < 0)
goto err;
semanage_context_free(con);
return STATUS_SUCCESS;
last:
parse_dispose_line(info);
return STATUS_NODATA;
err:
ERR(handle, "could not parse port record");
free(str);
semanage_context_free(con);
parse_dispose_line(info);
return STATUS_ERR;
}
/* PORT RECORD: FILE extension: method table */
record_file_table_t SEMANAGE_PORT_FILE_RTABLE = {
.parse = port_parse,
.print = port_print,
};
int port_file_dbase_init(semanage_handle_t * handle,
const char *path_ro,
const char *path_rw,
dbase_config_t * dconfig)
{
if (dbase_file_init(handle,
path_ro,
path_rw,
&SEMANAGE_PORT_RTABLE,
&SEMANAGE_PORT_FILE_RTABLE, &dconfig->dbase) < 0)
return STATUS_ERR;
dconfig->dtable = &SEMANAGE_FILE_DTABLE;
return STATUS_SUCCESS;
}
void port_file_dbase_release(dbase_config_t * dconfig)
{
dbase_file_release(dconfig->dbase);
}