2016-06-06 21:44:30 +00:00
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/*-
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* BSD LICENSE
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*
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* Copyright (c) Intel Corporation.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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2016-06-08 20:29:15 +00:00
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#include <stdlib.h>
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2016-06-06 21:44:30 +00:00
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#include <string.h>
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#include "conf.h"
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#include "init_grp.h"
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#include "nvmf.h"
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#include "port.h"
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#include "spdk/conf.h"
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#include "spdk/log.h"
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#define PORTNUMSTRLEN 32
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static int
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spdk_nvmf_parse_nvmf_tgt(void)
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{
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struct spdk_conf_section *sp;
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char *authfile;
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char *nodebase;
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int max_in_capsule_data;
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int max_sessions_per_subsystem;
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int max_queue_depth;
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int max_conn_per_sess;
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int max_recv_seg_len;
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int listen_port;
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int rc;
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sp = spdk_conf_find_section(NULL, "Nvmf");
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if (sp == NULL) {
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SPDK_ERRLOG("No Nvmf section in configuration file.\n");
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return -1;
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}
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authfile = spdk_conf_section_get_val(sp, "AuthFile");
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if (authfile == NULL) {
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authfile = SPDK_NVMF_DEFAULT_AUTHFILE;
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}
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nodebase = spdk_conf_section_get_val(sp, "NodeBase");
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if (nodebase == NULL) {
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nodebase = SPDK_NVMF_DEFAULT_NODEBASE;
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}
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max_in_capsule_data = spdk_conf_section_get_intval(sp, "MaxInCapsuleData");
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if (max_in_capsule_data < 0) {
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max_in_capsule_data = SPDK_NVMF_DEFAULT_IN_CAPSULE_DATA_SIZE;
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}
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max_sessions_per_subsystem = spdk_conf_section_get_intval(sp, "MaxSessionsPerSubsystem");
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if (max_sessions_per_subsystem < 0) {
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max_sessions_per_subsystem = SPDK_NVMF_DEFAULT_MAX_SESSIONS_PER_SUBSYSTEM;
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}
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max_queue_depth = spdk_conf_section_get_intval(sp, "MaxQueueDepth");
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if (max_queue_depth < 0) {
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max_queue_depth = SPDK_NVMF_DEFAULT_MAX_QUEUE_DEPTH;
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}
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max_conn_per_sess = spdk_conf_section_get_intval(sp, "MaxConnectionsPerSession");
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if (max_conn_per_sess < 0) {
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max_conn_per_sess = SPDK_NVMF_DEFAULT_MAX_CONNECTIONS_PER_SESSION;
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}
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max_recv_seg_len = SPDK_NVMF_MAX_RECV_DATA_TRANSFER_SIZE;
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listen_port = SPDK_NVMF_DEFAULT_SIN_PORT;
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rc = nvmf_tgt_init(authfile, nodebase, max_in_capsule_data, max_sessions_per_subsystem,
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max_queue_depth, max_conn_per_sess, max_recv_seg_len, listen_port);
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return rc;
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}
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static int
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spdk_nvmf_parse_addr(char *listen_addr, char **host, char **port)
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{
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int n, len;
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const char *p, *q;
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if (listen_addr == NULL) {
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SPDK_ERRLOG("Invalid listen addr for Fabric Interface (NULL)\n");
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return -1;
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}
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*host = NULL;
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*port = NULL;
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if (listen_addr[0] == '[') {
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/* IPv6 */
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p = strchr(listen_addr + 1, ']');
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if (p == NULL) {
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return -1;
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}
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p++;
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n = p - listen_addr;
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*host = malloc(n + 1);
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if (!*host) {
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return -1;
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}
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memcpy(*host, listen_addr, n);
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(*host)[n] = '\0';
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if (p[0] == '\0') {
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*port = malloc(PORTNUMSTRLEN);
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if (!*port) {
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free(*host);
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return -1;
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}
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snprintf(*port, PORTNUMSTRLEN, "%d", SPDK_NVMF_DEFAULT_SIN_PORT);
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} else {
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if (p[0] != ':') {
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free(*host);
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return -1;
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}
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q = strchr(listen_addr, '@');
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if (q == NULL) {
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q = listen_addr + strlen(listen_addr);
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}
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len = q - p - 1;
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*port = malloc(len + 1);
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if (!*port) {
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free(*host);
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return -1;
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}
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memset(*port, 0, len + 1);
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memcpy(*port, p + 1, len);
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}
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} else {
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/* IPv4 */
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p = strchr(listen_addr, ':');
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if (p == NULL) {
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p = listen_addr + strlen(listen_addr);
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}
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n = p - listen_addr;
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*host = malloc(n + 1);
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if (!*host) {
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return -1;
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}
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memcpy(*host, listen_addr, n);
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(*host)[n] = '\0';
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if (p[0] == '\0') {
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*port = malloc(PORTNUMSTRLEN);
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if (!*port) {
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free(*host);
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return -1;
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}
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snprintf(*port, PORTNUMSTRLEN, "%d", SPDK_NVMF_DEFAULT_SIN_PORT);
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} else {
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if (p[0] != ':') {
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free(*host);
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return -1;
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}
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q = strchr(listen_addr, '@');
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if (q == NULL) {
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q = listen_addr + strlen(listen_addr);
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}
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if (q == p) {
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free(*host);
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return -1;
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}
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len = q - p - 1;
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*port = malloc(len + 1);
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if (!*port) {
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free(*host);
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return -1;
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}
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memset(*port, 0, len + 1);
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memcpy(*port, p + 1, len);
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}
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}
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return 0;
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}
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static int
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spdk_nvmf_parse_port(struct spdk_conf_section *sp)
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{
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struct spdk_nvmf_port *port;
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struct spdk_nvmf_fabric_intf *fabric_intf;
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char *listen_addr, *host, *listen_port;
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int i = 0, rc = 0;
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/* Create the Subsystem Port */
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port = spdk_nvmf_port_create(sp->num);
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if (!port) {
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SPDK_ERRLOG("Port create failed\n");
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return -1;
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}
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/* Loop over the fabric interfaces and add them to the port */
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for (i = 0; ; i++) {
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2016-06-08 06:12:55 +00:00
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listen_addr = spdk_conf_section_get_nmval(sp, "FabricIntf", i, 0);
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2016-06-06 21:44:30 +00:00
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if (listen_addr == NULL) {
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break;
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}
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rc = spdk_nvmf_parse_addr(listen_addr, &host, &listen_port);
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if (rc < 0) {
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continue;
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}
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fabric_intf = spdk_nvmf_fabric_intf_create(host, listen_port);
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if (!fabric_intf) {
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continue;
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}
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spdk_nvmf_port_add_fabric_intf(port, fabric_intf);
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}
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2016-06-08 06:12:55 +00:00
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if (TAILQ_EMPTY(&port->head)) {
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SPDK_ERRLOG("No fabric interface found\n");
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return -1;
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}
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2016-06-06 21:44:30 +00:00
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return 0;
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}
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static int
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spdk_nvmf_parse_ports(void)
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{
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int rc = 0;
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struct spdk_conf_section *sp;
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sp = spdk_conf_first_section(NULL);
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while (sp != NULL) {
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if (spdk_conf_section_match_prefix(sp, "Port")) {
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rc = spdk_nvmf_parse_port(sp);
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if (rc < 0) {
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return -1;
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}
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}
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sp = spdk_conf_next_section(sp);
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}
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return 0;
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}
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static int
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spdk_nvmf_parse_init_grp(struct spdk_conf_section *sp)
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{
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int i;
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const char *mask;
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char **netmasks;
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int num_netmasks;
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struct spdk_nvmf_init_grp *init_grp;
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for (num_netmasks = 0; ; num_netmasks++) {
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mask = spdk_conf_section_get_nval(sp, "Netmask", num_netmasks);
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if (mask == NULL) {
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break;
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}
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}
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if (num_netmasks == 0) {
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return -1;
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}
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netmasks = calloc(num_netmasks, sizeof(char *));
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if (!netmasks) {
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return -1;
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}
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for (i = 0; i < num_netmasks; i++) {
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mask = spdk_conf_section_get_nval(sp, "Netmask", i);
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netmasks[i] = strdup(mask);
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if (!netmasks[i]) {
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free(netmasks);
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return -1;
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}
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}
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init_grp = spdk_nvmf_init_grp_create(sp->num, num_netmasks, netmasks);
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if (!init_grp) {
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free(netmasks);
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return -1;
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}
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return 0;
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}
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static int
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spdk_nvmf_parse_init_grps(void)
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{
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int rc = 0;
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struct spdk_conf_section *sp;
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sp = spdk_conf_first_section(NULL);
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while (sp != NULL) {
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2016-06-08 18:18:24 +00:00
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if (spdk_conf_section_match_prefix(sp, "Host")) {
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2016-06-06 21:44:30 +00:00
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rc = spdk_nvmf_parse_init_grp(sp);
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if (rc < 0) {
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return -1;
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}
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}
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sp = spdk_conf_next_section(sp);
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}
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return 0;
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}
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int
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spdk_nvmf_parse_conf(void)
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{
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int rc;
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/* NVMf section */
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rc = spdk_nvmf_parse_nvmf_tgt();
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if (rc < 0) {
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return rc;
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}
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/* Port sections */
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rc = spdk_nvmf_parse_ports();
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if (rc < 0) {
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return rc;
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}
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/* Initiator Group sections */
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rc = spdk_nvmf_parse_init_grps();
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if (rc < 0) {
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return rc;
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}
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return 0;
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}
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