+++ /dev/null
-/*
- * Copyright (C) 2012 - David Goulet <dgoulet@efficios.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License, version 2 only, as
- * published by the Free Software Foundation.
- *
- * 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, write to the Free Software Foundation, Inc., 51
- * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#define _GNU_SOURCE
-#include <arpa/inet.h>
-#include <netdb.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/socket.h>
-
-#include <common/common.h>
-#include <common/defaults.h>
-
-#include "uri.h"
-
-enum uri_proto_code {
- P_NET, P_NET6, P_FILE, P_TCP, P_TCP6,
-};
-
-struct uri_proto {
- char *name;
- enum uri_proto_code code;
- enum lttng_proto_type type;
- enum lttng_dst_type dtype;
-};
-
-/* Supported protocols */
-static const struct uri_proto proto_uri[] = {
- { .name = "file", .code = P_FILE, .type = 0, .dtype = LTTNG_DST_PATH},
- { .name = "net", .code = P_NET, .type = LTTNG_TCP, .dtype = LTTNG_DST_IPV4 },
- { .name = "net6", .code = P_NET6, .type = LTTNG_TCP, .dtype = LTTNG_DST_IPV6 },
- { .name = "tcp", .code = P_TCP, .type = LTTNG_TCP, .dtype = LTTNG_DST_IPV4 },
- { .name = "tcp6", .code = P_TCP6, .type = LTTNG_TCP, .dtype = LTTNG_DST_IPV6 },
- { .name = NULL }
-};
-
-/*
- * Validate if proto is a supported protocol from proto_uri array.
- */
-static const struct uri_proto *validate_protocol(char *proto)
-{
- const struct uri_proto *supported;
-
- /* Safety net */
- if (proto == NULL) {
- goto end;
- }
-
- for (supported = &proto_uri[0];
- supported->name != NULL; ++supported) {
- if (strncmp(proto, supported->name, strlen(proto)) == 0) {
- goto end;
- }
- }
-
- /* Proto not found */
- return NULL;
-
-end:
- return supported;
-}
-
-/*
- * Compare two URIs.
- *
- * Return 0 if equal else 1.
- */
-int uri_compare(struct lttng_uri *uri1, struct lttng_uri *uri2)
-{
- return memcmp(uri1, uri2, sizeof(struct lttng_uri));
-}
-
-/*
- * Free URI memory.
- */
-void uri_free(struct lttng_uri *uri)
-{
- /* Safety check */
- if (uri != NULL) {
- free(uri);
- }
-}
-
-/*
- * Return an allocated URI.
- */
-struct lttng_uri *uri_create(void)
-{
- struct lttng_uri *uri;
-
- uri = zmalloc(sizeof(struct lttng_uri));
- if (uri == NULL) {
- PERROR("zmalloc uri");
- }
-
- return uri;
-}
-
-static int set_ip_address(const char *addr, int af, char *dst, size_t size)
-{
- int ret;
- unsigned char buf[sizeof(struct in6_addr)];
- struct hostent *record;
-
- /* Network protocol */
- ret = inet_pton(af, addr, buf);
- if (ret < 1) {
- /* We consider the dst to be an hostname or an invalid IP char */
- record = gethostbyname2(addr, af);
- if (record == NULL) {
- /* At this point, the IP or the hostname is bad */
- printf("bad hostname\n");
- goto error;
- }
-
- /* Translate IP to string */
- (void) inet_ntop(af, record->h_addr_list[0], dst, size);
- } else {
- memcpy(dst, addr, size);
- }
-
- return 0;
-
-error:
- return -1;
-}
-
-ssize_t uri_parse(const char *str_uri, struct lttng_uri **uris)
-{
- int ret;
- /* Size of the uris array. Default is 1 */
- ssize_t size = 1;
- char net[6], dst[LTTNG_MAX_DNNAME + 1];
- unsigned int ctrl_port = 0;
- unsigned int data_port = 0;
- struct lttng_uri *uri;
- const struct uri_proto *proto;
-
- /*
- * The first part is the protocol portion of a maximum of 5 bytes for now.
- * The second part is the hostname or IP address. The 255 bytes size is the
- * limit found in the RFC 1035 for the total length of a domain name
- * (https://www.ietf.org/rfc/rfc1035.txt). Finally, for the net://
- * protocol, two ports CAN be specified.
- */
-
- ret = sscanf(str_uri, "%5[^:]://", net);
- if (ret < 1) {
- printf("bad protocol\n");
- goto error;
- }
-
- DBG3("URI protocol : %s", str_uri);
-
- proto = validate_protocol(net);
- if (proto == NULL) {
- printf("no protocol\n");
- ret = -1;
- goto error;
- }
-
- if (proto->code == P_NET || proto->code == P_NET6) {
- /* Special case for net:// which requires two URI object */
- size = 2;
- }
-
- /* Parse the rest of the URI */
- ret = sscanf(str_uri + strlen(net), "://%255[^:]:%u:%u", dst,
- &ctrl_port, &data_port);
- if (ret < 0) {
- printf("bad URI\n");
- goto error;
- }
-
- /* We have enough valid information to create URI(s) object */
-
- /* Allocate URI array */
- uri = zmalloc(sizeof(struct lttng_uri) * size);
- if (uri == NULL) {
- PERROR("zmalloc uri");
- goto error;
- }
-
- /* Copy generic information */
- uri[0].dtype = proto->dtype;
- uri[0].proto = proto->type;
- uri[0].port = ctrl_port;
-
- DBG3("URI dtype: %d, proto: %d, port: %d", proto->dtype, proto->type,
- ctrl_port);
-
- switch (proto->code) {
- case P_FILE:
- memcpy(uri[0].dst.path, dst, sizeof(uri[0].dst.path));
- /* Reset port for the file:// URI */
- uri[0].port = 0;
- DBG3("URI file destination: %s", dst);
- break;
- case P_NET:
- ret = set_ip_address(dst, AF_INET, uri[0].dst.ipv4,
- sizeof(uri[0].dst.ipv4));
- if (ret < 0) {
- goto free_error;
- }
-
- memcpy(uri[1].dst.ipv4, uri[0].dst.ipv4, sizeof(uri[1].dst.ipv4));
-
- uri[1].dtype = proto->dtype;
- uri[1].proto = proto->type;
- uri[1].port = data_port;
- break;
- case P_NET6:
- ret = set_ip_address(dst, AF_INET6, uri[0].dst.ipv6,
- sizeof(uri[0].dst.ipv6));
- if (ret < 0) {
- goto free_error;
- }
-
- memcpy(uri[1].dst.ipv6, uri[0].dst.ipv6, sizeof(uri[1].dst.ipv6));
-
- uri[1].dtype = proto->dtype;
- uri[1].proto = proto->type;
- uri[1].port = data_port;
- break;
- case P_TCP:
- ret = set_ip_address(dst, AF_INET, uri[0].dst.ipv4,
- sizeof(uri[0].dst.ipv4));
- if (ret < 0) {
- goto free_error;
- }
- break;
- case P_TCP6:
- ret = set_ip_address(dst, AF_INET6, uri[0].dst.ipv6,
- sizeof(uri[0].dst.ipv6));
- if (ret < 0) {
- goto free_error;
- }
- break;
- default:
- goto free_error;
- }
-
- *uris = uri;
-
- return size;
-
-free_error:
- free(uri);
-error:
- return -1;
-}
projects / lttng-tools.git / blobdiff