int
ipmi_openipmi_ctx_io_init (ipmi_openipmi_ctx_t ctx)
{
unsigned int addr = IPMI_SLAVE_ADDRESS_BMC;
char *driver_device;
int flags;
if (!ctx || ctx->magic != IPMI_OPENIPMI_CTX_MAGIC)
{
ERR_TRACE (ipmi_openipmi_ctx_errormsg (ctx), ipmi_openipmi_ctx_errnum (ctx));
return (-1);
}
if (ctx->io_init)
goto out;
if (ctx->driver_device)
driver_device = ctx->driver_device;
else
driver_device = IPMI_OPENIPMI_DRIVER_DEVICE_DEFAULT;
if ((ctx->device_fd = open (driver_device,
O_RDWR)) < 0)
{
OPENIPMI_ERRNO_TO_OPENIPMI_ERRNUM (ctx, errno);
goto cleanup;
}
flags = fcntl(ctx->device_fd, F_GETFD);
if (flags < 0)
{
OPENIPMI_ERRNO_TO_OPENIPMI_ERRNUM (ctx, errno);
goto cleanup;
}
flags |= FD_CLOEXEC;
if (fcntl(ctx->device_fd, F_SETFD, flags) < 0)
{
OPENIPMI_ERRNO_TO_OPENIPMI_ERRNUM (ctx, errno);
goto cleanup;
}
if (ioctl (ctx->device_fd,
IPMICTL_SET_MY_ADDRESS_CMD,
&addr) < 0)
{
OPENIPMI_ERRNO_TO_OPENIPMI_ERRNUM (ctx, errno);
goto cleanup;
}
ctx->io_init = 1;
out:
ctx->errnum = IPMI_OPENIPMI_ERR_SUCCESS;
return (0);
cleanup:
/* ignore potential error, error path */
close (ctx->device_fd);
ctx->device_fd = -1;
return (-1);
}
static int
_openipmi_read (ipmi_openipmi_ctx_t ctx,
fiid_obj_t obj_cmd_rs)
{
uint8_t rs_buf_temp[IPMI_OPENIPMI_BUFLEN];
uint8_t rs_buf[IPMI_OPENIPMI_BUFLEN];
struct ipmi_system_interface_addr rs_addr;
struct ipmi_recv rs_packet;
fd_set read_fds;
struct timeval tv;
int n;
assert (ctx);
assert (ctx->magic == IPMI_OPENIPMI_CTX_MAGIC);
assert (fiid_obj_valid (obj_cmd_rs));
rs_packet.addr = (unsigned char *)&rs_addr;
rs_packet.addr_len = sizeof (struct ipmi_system_interface_addr);
rs_packet.msg.data = rs_buf_temp;
rs_packet.msg.data_len = IPMI_OPENIPMI_BUFLEN;
FD_ZERO (&read_fds);
FD_SET (ctx->device_fd, &read_fds);
tv.tv_sec = IPMI_OPENIPMI_TIMEOUT;
tv.tv_usec = 0;
if ((n = select (ctx->device_fd + 1,
&read_fds,
NULL,
NULL,
&tv)) < 0)
{
OPENIPMI_ERRNO_TO_OPENIPMI_ERRNUM (ctx, errno);
return (-1);
}
if (!n)
{
/* Could be due to a different error, but we assume a timeout */
OPENIPMI_SET_ERRNUM (ctx, IPMI_OPENIPMI_ERR_DRIVER_TIMEOUT);
return (-1);
}
if (ioctl (ctx->device_fd,
IPMICTL_RECEIVE_MSG_TRUNC,
&rs_packet) < 0)
{
OPENIPMI_ERRNO_TO_OPENIPMI_ERRNUM (ctx, errno);
return (-1);
}
/* achu: atleast the completion code should be returned */
if (!rs_packet.msg.data_len)
{
OPENIPMI_SET_ERRNUM (ctx, IPMI_OPENIPMI_ERR_SYSTEM_ERROR);
return (-1);
}
rs_buf[0] = rs_packet.msg.cmd;
/* -1 b/c of cmd */
if (rs_packet.msg.data_len >= (IPMI_OPENIPMI_BUFLEN - 1))
rs_packet.msg.data_len = IPMI_OPENIPMI_BUFLEN - 1;
memcpy (rs_buf + 1, rs_buf_temp, rs_packet.msg.data_len);
if (fiid_obj_set_all (obj_cmd_rs,
rs_buf,
rs_packet.msg.data_len + 1) < 0)
{
OPENIPMI_SET_ERRNUM (ctx, IPMI_OPENIPMI_ERR_INTERNAL_ERROR);
return (-1);
}
return (0);
}
static int
_openipmi_write (ipmi_openipmi_ctx_t ctx,
uint8_t channel_number,
uint8_t rs_addr,
uint8_t lun,
uint8_t net_fn,
fiid_obj_t obj_cmd_rq,
unsigned int is_ipmb)
{
uint8_t rq_buf_temp[IPMI_OPENIPMI_BUFLEN];
uint8_t rq_buf[IPMI_OPENIPMI_BUFLEN];
uint8_t rq_cmd;
unsigned int rq_buf_len;
int len;
struct ipmi_system_interface_addr system_interface_addr;
struct ipmi_ipmb_addr ipmb_addr;
struct ipmi_req rq_packet;
assert (ctx);
assert (ctx->magic == IPMI_OPENIPMI_CTX_MAGIC);
assert (IPMI_CHANNEL_NUMBER_VALID (channel_number));
assert (IPMI_BMC_LUN_VALID (lun));
assert (IPMI_NET_FN_RQ_VALID (net_fn));
assert (fiid_obj_valid (obj_cmd_rq));
assert (fiid_obj_packet_valid (obj_cmd_rq) == 1);
/* Due to API differences, we need to extract the cmd out of the
* request.
*/
memset (rq_buf_temp, '\0', IPMI_OPENIPMI_BUFLEN);
if ((len = fiid_obj_get_all (obj_cmd_rq,
rq_buf_temp,
IPMI_OPENIPMI_BUFLEN)) <= 0)
{
OPENIPMI_SET_ERRNUM (ctx, IPMI_OPENIPMI_ERR_INTERNAL_ERROR);
return (-1);
}
rq_cmd = rq_buf_temp[0];
if (len > 1)
{
/* -1 b/c of cmd */
memcpy (rq_buf, &rq_buf_temp[1], len - 1);
rq_buf_len = len - 1;
}
else
rq_buf_len = 0;
if (!is_ipmb)
{
system_interface_addr.addr_type = IPMI_SYSTEM_INTERFACE_ADDR_TYPE; /* openipmi macro */
system_interface_addr.channel = IPMI_CHANNEL_NUMBER_SYSTEM_INTERFACE; /* freeipmi macro */
system_interface_addr.lun = lun;
rq_packet.addr = (unsigned char *)&system_interface_addr;
rq_packet.addr_len = sizeof (struct ipmi_system_interface_addr);
}
else
{
ipmb_addr.addr_type = IPMI_IPMB_ADDR_TYPE; /* openipmi macro */
ipmb_addr.channel = channel_number;
ipmb_addr.slave_addr = rs_addr;
ipmb_addr.lun = lun;
rq_packet.addr = (unsigned char *)&ipmb_addr;
rq_packet.addr_len = sizeof (struct ipmi_ipmb_addr);
}
rq_packet.msgid = 0;
rq_packet.msg.netfn = net_fn;
rq_packet.msg.cmd = rq_cmd;
rq_packet.msg.data_len = rq_buf_len;
rq_packet.msg.data = rq_buf;
if (ioctl (ctx->device_fd,
IPMICTL_SEND_COMMAND,
&rq_packet) < 0)
{
OPENIPMI_ERRNO_TO_OPENIPMI_ERRNUM (ctx, errno);
return (-1);
}
return (0);
}