diff options
Diffstat (limited to 'common/recipes-core/ipmbd/files')
| -rw-r--r-- | common/recipes-core/ipmbd/files/Makefile | 10 | ||||
| -rw-r--r-- | common/recipes-core/ipmbd/files/ipmbd.c | 843 |
2 files changed, 853 insertions, 0 deletions
diff --git a/common/recipes-core/ipmbd/files/Makefile b/common/recipes-core/ipmbd/files/Makefile new file mode 100644 index 0000000..719ccc3 --- /dev/null +++ b/common/recipes-core/ipmbd/files/Makefile @@ -0,0 +1,10 @@ +# Copyright 2015-present Facebook. All Rights Reserved. +all: ipmbd + +ipmbd: ipmbd.o + $(CC) $(CFLAGS) -pthread -lrt -lipmi -std=gnu99 -o $@ $^ $(LDFLAGS) + +.PHONY: clean + +clean: + rm -rf *.o ipmbd diff --git a/common/recipes-core/ipmbd/files/ipmbd.c b/common/recipes-core/ipmbd/files/ipmbd.c new file mode 100644 index 0000000..5ea5af3 --- /dev/null +++ b/common/recipes-core/ipmbd/files/ipmbd.c @@ -0,0 +1,843 @@ +/* + * Copyright 2015-present Facebook. All Rights Reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * 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., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +/* + * This module handles all the IPMB communication protocol + * Refer http://www.intel.com/content/www/us/en/servers/ipmi/ipmp-spec-v1-0.html + * for more information. + * + * IPMB packet format is described here for quick reference + * Request: + * <Responder Slave Address(rsSA)> + * <NetFn/ResponderLUN(Netfn/rsLUN)> + * <Header Checksum(hdrCksum)> + * <Requester Slave Address(rqSA)> + * <Requester Sequence Number/RequesterLUN(rqSeq/rqLUN> + * <Command> + * <Data[0..n]> + * <Data Checksum(dataCksum)> + * Response: + * <Requester Slave Address(rqSA)> + * <NetFn/RequesterLUN(Netfn/rqLUN)> + * <Header Checksum(hdrCksum)> + * <Responder Slave Address(rsSA)> + * <Requester Sequence Number/ResponderLUN(rqSeq/rsLUN> + * <Command> + * <Completion Code(CC)> + * <Data[0..n]> + * <Data Checksum(dataCksum)> + */ +#include <errno.h> +#include <fcntl.h> +#include <stdio.h> +#include <stdlib.h> +#include <stdbool.h> +#include <string.h> +#include <syslog.h> +#include <pthread.h> +#include <sys/socket.h> +#include <sys/un.h> +#include <sys/ioctl.h> +#include <sys/stat.h> +#include <sys/types.h> +#include <sys/socket.h> +#include <sys/un.h> +#include <unistd.h> +#include <stdint.h> +#include <mqueue.h> +#include <semaphore.h> + +#include "facebook/i2c-dev.h" +#include "openbmc/ipmi.h" +#include "openbmc/ipmb.h" + +//#define DEBUG 0 + +#define MAX_BYTES 255 + +#define MQ_IPMB_REQ "/mq_ipmb_req" +#define MQ_IPMB_RES "/mq_ipmb_res" +#define MQ_MAX_MSG_SIZE MAX_BYTES +#define MQ_MAX_NUM_MSGS 10 + +#define SEQ_NUM_MAX 64 + +#define I2C_RETRIES_MAX 3 + +// Structure for i2c file descriptor and socket +typedef struct _ipmb_sfd_t { + int fd; + int sock; +} ipmb_sfd_t; + +// Structure for sequence number and buffer +typedef struct _seq_buf_t { + bool in_use; // seq# is being used + uint8_t len; // buffer size + uint8_t *p_buf; // pointer to buffer + sem_t s_seq; // semaphore for thread sync. +} seq_buf_t; + +// Structure for holding currently used sequence number and +// array of all possible sequence number +typedef struct _ipmb_sbuf_t { + uint8_t curr_seq; // currently used seq# + seq_buf_t seq[SEQ_NUM_MAX]; //array of all possible seq# struct. +} ipmb_sbuf_t; + +// Global storage for holding IPMB sequence number and buffer +ipmb_sbuf_t g_seq; + +// mutex to protect global data access +pthread_mutex_t m_seq; + +pthread_mutex_t m_i2c; + +#ifdef CONFIG_YOSEMITE +// Returns the payload ID from IPMB bus routing +// Slot#1: bus#3, Slot#2: bus#1, Slot#3: bus#7, Slot#4: bus#5 +static uint8_t +get_payload_id(uint8_t bus_id) { + uint8_t payload_id = 0xFF; // Invalid payload ID + + switch(bus_id) { + case 1: + payload_id = 2; + break; + case 3: + payload_id = 1; + break; + case 5: + payload_id = 4; + break; + case 7: + payload_id = 3; + break; + default: + syslog(LOG_ALERT, "get_payload_id: Wrong bus ID\n"); + break; + } + + return payload_id; +} +#endif + +// Returns an unused seq# from all possible seq# +static uint8_t +seq_get_new(void) { + uint8_t ret = -1; + uint8_t index; + + pthread_mutex_lock(&m_seq); + + // Search for unused sequence number + index = g_seq.curr_seq; + do { + if (g_seq.seq[index].in_use == false) { + // Found it! + ret = index; + g_seq.seq[index].in_use = true; + g_seq.seq[index].len = 0; + break; + } + + if (++index == SEQ_NUM_MAX) { + index = 0; + } + } while (index != g_seq.curr_seq); + + // Update the current seq num + if (ret >= 0) { + if (++index == SEQ_NUM_MAX) { + index = 0; + } + g_seq.curr_seq = index; + } + + pthread_mutex_unlock(&m_seq); + + return ret; +} + +static int +i2c_open(uint8_t bus_num) { + int fd; + char fn[32]; + int rc; + + snprintf(fn, sizeof(fn), "/dev/i2c-%d", bus_num); + fd = open(fn, O_RDWR); + if (fd == -1) { + syslog(LOG_ALERT, "Failed to open i2c device %s", fn); + return -1; + } + + rc = ioctl(fd, I2C_SLAVE, BRIDGE_SLAVE_ADDR); + if (rc < 0) { + syslog(LOG_ALERT, "Failed to open slave @ address 0x%x", BRIDGE_SLAVE_ADDR); + close(fd); + return -1; + } + + return fd; +} + +static int +i2c_write(int fd, uint8_t *buf, uint8_t len) { + struct i2c_rdwr_ioctl_data data; + struct i2c_msg msg; + int rc; + int i; + + memset(&msg, 0, sizeof(msg)); + + msg.addr = BRIDGE_SLAVE_ADDR; + msg.flags = 0; + msg.len = len; + msg.buf = buf; + + data.msgs = &msg; + data.nmsgs = 1; + + pthread_mutex_lock(&m_i2c); + + for (i = 0; i < I2C_RETRIES_MAX; i++) { + rc = ioctl(fd, I2C_RDWR, &data); + if (rc < 0) { + sleep(1); + continue; + } else { + break; + } + } + + if (rc < 0) { + syslog(LOG_ALERT, "Failed to do raw io"); + pthread_mutex_unlock(&m_i2c); + return -1; + } + + pthread_mutex_unlock(&m_i2c); + + return 0; +} + +static int +i2c_slave_open(uint8_t bus_num) { + int fd; + char fn[32]; + int rc; + struct i2c_rdwr_ioctl_data data; + struct i2c_msg msg; + uint8_t read_bytes[MAX_BYTES] = { 0 }; + + snprintf(fn, sizeof(fn), "/dev/i2c-%d", bus_num); + fd = open(fn, O_RDWR); + if (fd == -1) { + syslog(LOG_ALERT, "Failed to open i2c device %s", fn); + return -1; + } + + memset(&msg, 0, sizeof(msg)); + + msg.addr = BMC_SLAVE_ADDR; + msg.flags = I2C_S_EN; + msg.len = 1; + msg.buf = read_bytes; + msg.buf[0] = 1; + + data.msgs = &msg; + data.nmsgs = 1; + + rc = ioctl(fd, I2C_SLAVE_RDWR, &data); + if (rc < 0) { + syslog(LOG_ALERT, "Failed to open slave @ address 0x%x", BMC_SLAVE_ADDR); + close(fd); + } + + return fd; +} + +static int +i2c_slave_read(int fd, uint8_t *buf, uint8_t *len) { + struct i2c_rdwr_ioctl_data data; + struct i2c_msg msg; + int rc; + + memset(&msg, 0, sizeof(msg)); + + msg.addr = BMC_SLAVE_ADDR; + msg.flags = 0; + msg.len = MAX_BYTES; + msg.buf = buf; + + data.msgs = &msg; + data.nmsgs = 1; + + rc = ioctl(fd, I2C_SLAVE_RDWR, &data); + if (rc < 0) { + return -1; + } + + *len = msg.len; + + return 0; +} + +// Thread to handle new requests +static void* +ipmb_req_handler(void *bus_num) { + uint8_t *bnum = (uint8_t*) bus_num; + mqd_t mq; + int fd; + int i; + + //Buffers for IPMB transport + uint8_t rxbuf[MQ_MAX_MSG_SIZE] = {0}; + uint8_t txbuf[MQ_MAX_MSG_SIZE] = {0}; + ipmb_req_t *p_ipmb_req; + ipmb_res_t *p_ipmb_res; + + p_ipmb_req = (ipmb_req_t*) rxbuf; + p_ipmb_res = (ipmb_res_t*) txbuf; + + //Buffers for IPMI Stack + uint8_t rbuf[MQ_MAX_MSG_SIZE] = {0}; + uint8_t tbuf[MQ_MAX_MSG_SIZE] = {0}; + ipmi_mn_req_t *p_ipmi_mn_req; + ipmi_res_t *p_ipmi_res; + + p_ipmi_mn_req = (ipmi_mn_req_t*) rbuf; + p_ipmi_res = (ipmi_res_t*) tbuf; + + uint8_t rlen = 0; + uint8_t tlen = 0; + + char mq_ipmb_req[64] = {0}; + + sprintf(mq_ipmb_req, "%s_%d", MQ_IPMB_REQ, *bnum); + + // Open Queue to receive requests + mq = mq_open(mq_ipmb_req, O_RDONLY); + if (mq == (mqd_t) -1) { + return NULL; + } + + // Open the i2c bus for sending response + fd = i2c_open(*bnum); + if (fd < 0) { + syslog(LOG_ALERT, "i2c_open failure\n"); + close(mq); + return NULL; + } + + // Loop to process incoming requests + while (1) { + if ((rlen = mq_receive(mq, rxbuf, MQ_MAX_MSG_SIZE, NULL)) < 0) { + sleep(1); + continue; + } + +#ifdef DEBUG + syslog(LOG_ALERT, "Received Request of %d bytes\n", rlen); + for (i = 0; i < rlen; i++) { + syslog(LOG_ALERT, "0x%X", rxbuf[i]); + } +#endif + + // Create IPMI request from IPMB data +#ifdef CONFIG_YOSEMITE + p_ipmi_mn_req->payload_id = get_payload_id(*bnum); +#else + // For single node systems use payload ID as 1 + p_ipmi_mn_req->payload_id = 0x1; +#endif + p_ipmi_mn_req->netfn_lun = p_ipmb_req->netfn_lun; + p_ipmi_mn_req->cmd = p_ipmb_req->cmd; + + memcpy(p_ipmi_mn_req->data, p_ipmb_req->data, rlen - IPMB_HDR_SIZE - IPMI_REQ_HDR_SIZE); + + // Send to IPMI stack and get response + // Additional byte as we are adding and passing payload ID for MN support + lib_ipmi_handle(rbuf, rlen - IPMB_HDR_SIZE + 1, tbuf, &tlen); + + // Populate IPMB response data from IPMB request + p_ipmb_res->req_slave_addr = p_ipmb_req->req_slave_addr; + p_ipmb_res->res_slave_addr = p_ipmb_req->res_slave_addr; + p_ipmb_res->cmd = p_ipmb_req->cmd; + p_ipmb_res->seq_lun = p_ipmb_req->seq_lun; + + // Add IPMI response data + p_ipmb_res->netfn_lun = p_ipmi_res->netfn_lun; + p_ipmb_res->cc = p_ipmi_res->cc; + + memcpy(p_ipmb_res->data, p_ipmi_res->data, tlen - IPMI_RESP_HDR_SIZE); + + // Calculate Header Checksum + p_ipmb_res->hdr_cksum = p_ipmb_res->req_slave_addr + + p_ipmb_res->netfn_lun; + p_ipmb_res->hdr_cksum = ZERO_CKSUM_CONST - p_ipmb_res->hdr_cksum; + + // Calculate Data Checksum + p_ipmb_res->data[tlen-IPMI_RESP_HDR_SIZE] = p_ipmb_res->res_slave_addr + + p_ipmb_res->seq_lun + + p_ipmb_res->cmd + + p_ipmb_res->cc; + + for (i = 0; i < tlen-IPMI_RESP_HDR_SIZE; i++) { + p_ipmb_res->data[tlen-IPMI_RESP_HDR_SIZE] += p_ipmb_res->data[i]; + } + + p_ipmb_res->data[tlen-IPMI_RESP_HDR_SIZE] = ZERO_CKSUM_CONST - + p_ipmb_res->data[tlen-IPMI_RESP_HDR_SIZE]; + +#ifdef DEBUG + syslog(LOG_ALERT, "Sending Response of %d bytes\n", tlen+IPMB_HDR_SIZE-1); + for (i = 1; i < tlen+IPMB_HDR_SIZE; i++) { + syslog(LOG_ALERT, "0x%X:", txbuf[i]); + } +#endif + + // Send response back + i2c_write(fd, &txbuf[1], tlen+IPMB_HDR_SIZE-1); + } +} + +// Thread to handle the incoming responses +static void* +ipmb_res_handler(void *bus_num) { + uint8_t *bnum = (uint8_t*) bus_num; + uint8_t buf[MQ_MAX_MSG_SIZE] = { 0 }; + uint8_t len = 0; + mqd_t mq; + ipmb_res_t *p_res; + uint8_t index; + char mq_ipmb_res[64] = {0}; + + sprintf(mq_ipmb_res, "%s_%d", MQ_IPMB_RES, *bnum); + + // Open the message queue + mq = mq_open(mq_ipmb_res, O_RDONLY); + if (mq == (mqd_t) -1) { + syslog(LOG_ALERT, "mq_open fails\n"); + return NULL; + } + + // Loop to wait for incomng response messages + while (1) { + if ((len = mq_receive(mq, buf, MQ_MAX_MSG_SIZE, NULL)) < 0) { + sleep(1); + continue; + } + + p_res = (ipmb_res_t *) buf; + + // Check the seq# of response + index = p_res->seq_lun >> LUN_OFFSET; + + // Check if the response is being waited for + pthread_mutex_lock(&m_seq); + if (g_seq.seq[index].in_use) { + // Copy the response to the requester's buffer + memcpy(g_seq.seq[index].p_buf, buf, len); + g_seq.seq[index].len = len; + + // Wake up the worker thread to receive the response + sem_post(&g_seq.seq[index].s_seq); + } + pthread_mutex_unlock(&m_seq); + +#ifdef DEBUG + syslog(LOG_ALERT, "Received Response of %d bytes\n", len); + int i; + for (i = 0; i < len; i++) { + syslog(LOG_ALERT, "0x%X:", buf[i]); + } +#endif + } +} + +// Thread to receive the IPMB messages over i2c bus as a slave +static void* +ipmb_rx_handler(void *bus_num) { + uint8_t *bnum = (uint8_t*) bus_num; + int fd; + uint8_t len; + uint8_t tlun; + uint8_t buf[MAX_BYTES] = { 0 }; + mqd_t mq_req, mq_res, tmq; + ipmb_req_t *p_req; + struct timespec req; + struct timespec rem; + char mq_ipmb_req[64] = {0}; + char mq_ipmb_res[64] = {0}; + + // Setup wait time + req.tv_sec = 0; + req.tv_nsec = 10000000;//10mSec + + // Open the i2c bus as a slave + fd = i2c_slave_open(*bnum); + if (fd < 0) { + syslog(LOG_ALERT, "i2c_slave_open fails\n"); + goto cleanup; + } + + sprintf(mq_ipmb_req, "%s_%d", MQ_IPMB_REQ, *bnum); + sprintf(mq_ipmb_res, "%s_%d", MQ_IPMB_RES, *bnum); + + // Open the message queues for post processing + mq_req = mq_open(mq_ipmb_req, O_WRONLY); + if (mq_req == (mqd_t) -1) { + syslog(LOG_ALERT, "mq_open req fails\n"); + goto cleanup; + } + + mq_res = mq_open(mq_ipmb_res, O_WRONLY); + if (mq_res == (mqd_t) -1) { + syslog(LOG_ALERT, "mq_open res fails\n"); + goto cleanup; + } + + // Loop that retrieves messages + while (1) { + // Read messages from i2c driver + if (i2c_slave_read(fd, buf, &len) < 0) { + nanosleep(&req, &rem); + continue; + } + + // Check if the messages is request or response + // Even NetFn: Request, Odd NetFn: Response + p_req = (ipmb_req_t*) buf; + tlun = p_req->netfn_lun >> LUN_OFFSET; + if (tlun%2) { + tmq = mq_res; + } else { + tmq = mq_req; + } + // Post message to approriate Queue for further processing + if (mq_send(tmq, buf, len, 0)) { + syslog(LOG_ALERT, "mq_send failed\n"); + sleep(1); + continue; + } + } + +cleanup: + if (fd > 0) { + close (fd); + } + + if (mq_req > 0) { + close(mq_req); + } + + if (mq_res > 0) { + close(mq_req); + } +} + +/* + * Function to handle all IPMB requests + */ +static void +ipmb_handle (int fd, unsigned char *request, unsigned char req_len, + unsigned char *response, unsigned char *res_len) +{ + ipmb_req_t *req = (ipmb_req_t *) request; + ipmb_res_t *res = (ipmb_res_t *) response; + + uint8_t index; + struct timespec ts; + + // Allocate right sequence Number + index = seq_get_new(); + if (index < 0) { + *res_len = 0; + return ; + } + + req->seq_lun = index << LUN_OFFSET; + + // Calculate/update dataCksum + // Note: dataCkSum byte is last byte + int i; + for (i = IPMB_DATA_OFFSET; i < req_len-1; i++) { + request[req_len-1] += request[i]; + } + + request[req_len-1] = ZERO_CKSUM_CONST - request[req_len-1]; + + // Setup response buffer + pthread_mutex_lock(&m_seq); + g_seq.seq[index].p_buf = response; + pthread_mutex_unlock(&m_seq); + + // Send request over i2c bus + // Note: Need not send first byte SlaveAddress automatically added by driver + if (i2c_write(fd, &request[1], req_len-1)) { + goto ipmb_handle_out; + } + + // Wait on semaphore for that sequence Number + clock_gettime(CLOCK_REALTIME, &ts); + + ts.tv_sec += TIMEOUT_IPMI; + + int ret; + ret = sem_timedwait(&g_seq.seq[index].s_seq, &ts); + if (ret == -1) { + syslog(LOG_ALERT, "No response for sequence number: %d\n", index); + *res_len = 0; + } + +ipmb_handle_out: + // Reply to user with data + pthread_mutex_lock(&m_seq); + *res_len = g_seq.seq[index].len; + + g_seq.seq[index].in_use = false; + pthread_mutex_unlock(&m_seq); + + return; +} + +void +*conn_handler(void *sfd) { + ipmb_sfd_t *p_sfd = (ipmb_sfd_t *) sfd; + + int sock = p_sfd->sock; + int fd = p_sfd->fd; + int n; + unsigned char req_buf[MAX_IPMI_MSG_SIZE]; + unsigned char res_buf[MAX_IPMI_MSG_SIZE]; + unsigned char res_len = 0; + + n = recv(sock, req_buf, sizeof(req_buf), 0); + if (n <= 0) { + syslog(LOG_ALERT, "ipmbd: recv() failed with %d\n", n); + goto conn_cleanup; + } + + ipmb_handle(fd, req_buf, n, res_buf, &res_len); + + if (send(sock, res_buf, res_len, MSG_NOSIGNAL) < 0) { + syslog(LOG_ALERT, "ipmbd: send() failed\n"); + } + +conn_cleanup: + close(sock); + free(p_sfd); + + pthread_exit(NULL); + return 0; +} + +// Thread to receive the IPMB lib messages from various apps +static void* +ipmb_lib_handler(void *bus_num) { + int s, s2, t, len; + struct sockaddr_un local, remote; + pthread_t tid; + ipmb_sfd_t *sfd; + int fd; + uint8_t *bnum = (uint8_t*) bus_num; + char sock_path[20] = {0}; + + // Open the i2c bus for sending request + fd = i2c_open(*bnum); + if (fd < 0) { + syslog(LOG_ALERT, "i2c_open failure\n"); + return NULL; + } + + // Initialize g_seq structure + int i; + for (i = 0; i < SEQ_NUM_MAX; i++) { + g_seq.seq[i].in_use = false; + sem_init(&g_seq.seq[i].s_seq, 0, 0); + g_seq.seq[i].len = 0; + } + + // Initialize mutex to access global structure + pthread_mutex_init(&m_seq, NULL); + + if ((s = socket (AF_UNIX, SOCK_STREAM, 0)) == -1) + { + syslog(LOG_ALERT, "ipmbd: socket() failed\n"); + exit (1); + } + + sprintf(sock_path, "%s_%d", SOCK_PATH_IPMB, *bnum); + + local.sun_family = AF_UNIX; + strcpy (local.sun_path, sock_path); + unlink (local.sun_path); + len = strlen (local.sun_path) + sizeof (local.sun_family); + if (bind (s, (struct sockaddr *) &local, len) == -1) + { + syslog(LOG_ALERT, "ipmbd: bind() failed\n"); + exit (1); + } + + if (listen (s, 5) == -1) + { + syslog(LOG_ALERT, "ipmbd: listen() failed\n"); + exit (1); + } + + while(1) { + int n; + t = sizeof (remote); + if ((s2 = accept (s, (struct sockaddr *) &remote, &t)) < 0) { + syslog(LOG_ALERT, "ipmbd: accept() failed\n"); + break; + } + + // Creating a worker thread to handle the request + // TODO: Need to monitor the server performance with higher load and + // see if we need to create pre-defined number of workers and schedule + // the requests among them. + sfd = (ipmb_sfd_t *) malloc(sizeof(ipmb_sfd_t)); + sfd->fd = fd; + sfd->sock = s2; + if (pthread_create(&tid, NULL, conn_handler, (void*) sfd) < 0) { + syslog(LOG_ALERT, "ipmbd: pthread_create failed\n"); + close(s2); + continue; + } + + pthread_detach(tid); + } + + close(s); + pthread_mutex_destroy(&m_seq); + + return 0; +} + +int +main(int argc, char * const argv[]) { + pthread_t tid_ipmb_rx; + pthread_t tid_req_handler; + pthread_t tid_res_handler; + pthread_t tid_lib_handler; + uint8_t ipmb_bus_num; + mqd_t mqd_req, mqd_res; + struct mq_attr attr; + char mq_ipmb_req[64] = {0}; + char mq_ipmb_res[64] = {0}; + + daemon(1, 0); + openlog("ipmbd", LOG_CONS, LOG_DAEMON); + + if (argc != 2) { + syslog(LOG_ALERT, "ipmbd: Usage: ipmbd <bus#>"); + exit(1); + } + + ipmb_bus_num = atoi(argv[1]); +syslog(LOG_ALERT, "ipmbd: bus#:%d\n", ipmb_bus_num); + + pthread_mutex_init(&m_i2c, NULL); + + // Create Message Queues for Request Messages and Response Messages + attr.mq_flags = 0; + attr.mq_maxmsg = MQ_MAX_NUM_MSGS; + attr.mq_msgsize = MQ_MAX_MSG_SIZE; + attr.mq_curmsgs = 0; + + sprintf(mq_ipmb_req, "%s_%d", MQ_IPMB_REQ, ipmb_bus_num); + sprintf(mq_ipmb_res, "%s_%d", MQ_IPMB_RES, ipmb_bus_num); + + // Remove the MQ if exists + mq_unlink(mq_ipmb_req); + + errno = 0; + mqd_req = mq_open(mq_ipmb_req, O_RDONLY | O_CREAT, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH, &attr); + if (mqd_req == (mqd_t) -1) { + syslog(LOG_ALERT, "ipmbd: mq_open request failed errno:%d\n", errno); + goto cleanup; + } + + // Remove the MQ if exists + mq_unlink(mq_ipmb_res); + + errno = 0; + mqd_res = mq_open(mq_ipmb_res, O_RDONLY | O_CREAT, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH, &attr); + if (mqd_res == (mqd_t) -1) { + syslog(LOG_ALERT, "ipmbd: mq_open response failed errno: %d\n", errno); + goto cleanup; + } + + // Create thread to handle IPMB Requests + if (pthread_create(&tid_req_handler, NULL, ipmb_req_handler, (void*) &ipmb_bus_num) < 0) { + syslog(LOG_ALERT, "ipmbd: pthread_create failed\n"); + goto cleanup; + } + + // Create thread to handle IPMB Responses + if (pthread_create(&tid_res_handler, NULL, ipmb_res_handler, (void*) &ipmb_bus_num) < 0) { + syslog(LOG_ALERT, "ipmbd: pthread_create failed\n"); + goto cleanup; + } + + // Create thread to retrieve ipmb traffic from i2c bus as slave + if (pthread_create(&tid_ipmb_rx, NULL, ipmb_rx_handler, (void*) &ipmb_bus_num) < 0) { + syslog(LOG_ALERT, "ipmbd: pthread_create failed\n"); + goto cleanup; + } + + // Create thread to receive ipmb library requests from apps + if (pthread_create(&tid_lib_handler, NULL, ipmb_lib_handler, (void*) &ipmb_bus_num) < 0) { + syslog(LOG_ALERT, "ipmbd: pthread_create failed\n"); + goto cleanup; + } + +cleanup: + if (tid_ipmb_rx > 0) { + pthread_join(tid_ipmb_rx, NULL); + } + + if (tid_req_handler > 0) { + pthread_join(tid_req_handler, NULL); + } + + if (tid_res_handler > 0) { + pthread_join(tid_res_handler, NULL); + } + + if (tid_lib_handler > 0) { + pthread_join(tid_lib_handler, NULL); + } + + if (mqd_res > 0) { + mq_close(mqd_res); + mq_unlink(mq_ipmb_res); + } + + if (mqd_req > 0) { + mq_close(mqd_req); + mq_unlink(mq_ipmb_req); + } + + pthread_mutex_destroy(&m_i2c); + + return 0; +} |
