Differential D7279 Diff 18695 usr.sbin/iscsid/iscsid.c

Changeset View

Standalone View

usr.sbin/iscsid/iscsid.c

Show First 20 Lines • Show All 147 Lines • ▼ Show 20 Lines	log_errx(1, "getaddrinfo for %s failed: %s",
address, gai_strerror(error));		address, gai_strerror(error));
}		}
}		}

static struct connection *		static struct connection *
connection_new(int iscsi_fd, const struct iscsi_daemon_request *request)		connection_new(int iscsi_fd, const struct iscsi_daemon_request *request)
{		{
struct connection *conn;		struct connection *conn;
		struct iscsi_session_limits *isl;
struct addrinfo from_ai, to_ai;		struct addrinfo from_ai, to_ai;
const char from_addr, to_addr;		const char from_addr, to_addr;
#ifdef ICL_KERNEL_PROXY		#ifdef ICL_KERNEL_PROXY
struct iscsi_daemon_connect idc;		struct iscsi_daemon_connect idc;
#endif		#endif
int error, sockbuf;		int error, sockbuf;

conn = calloc(1, sizeof(*conn));		conn = calloc(1, sizeof(*conn));
if (conn == NULL)		if (conn == NULL)
log_err(1, "calloc");		log_err(1, "calloc");

/*		/*
* Default values, from RFC 3720, section 12.		* Default values, from RFC 3720, section 12.
*/		*/
conn->conn_header_digest = CONN_DIGEST_NONE;		conn->conn_header_digest = CONN_DIGEST_NONE;
conn->conn_data_digest = CONN_DIGEST_NONE;		conn->conn_data_digest = CONN_DIGEST_NONE;
conn->conn_initial_r2t = true;		conn->conn_initial_r2t = true;
conn->conn_immediate_data = true;		conn->conn_immediate_data = true;
conn->conn_max_data_segment_length = 8192;		conn->conn_max_burst_length = MAX_BURST_LENGTH;
conn->conn_max_burst_length = 262144;		conn->conn_first_burst_length = FIRST_BURST_LENGTH;
conn->conn_first_burst_length = 65536;
conn->conn_iscsi_fd = iscsi_fd;		conn->conn_iscsi_fd = iscsi_fd;

conn->conn_session_id = request->idr_session_id;		conn->conn_session_id = request->idr_session_id;
memcpy(&conn->conn_conf, &request->idr_conf, sizeof(conn->conn_conf));		memcpy(&conn->conn_conf, &request->idr_conf, sizeof(conn->conn_conf));
memcpy(&conn->conn_isid, &request->idr_isid, sizeof(conn->conn_isid));		memcpy(&conn->conn_isid, &request->idr_isid, sizeof(conn->conn_isid));
conn->conn_tsih = request->idr_tsih;		conn->conn_tsih = request->idr_tsih;
memcpy(&conn->conn_limits, &request->idr_limits, sizeof(conn->conn_limits));

		/*
		* Read the driver limits and provide reasonable defaults for the ones
		* the driver doesn't care about. If a max_snd_dsl is not explicitly
		* provided by the driver then we'll make sure both conn->max_snd_dsl
		* and isl->max_snd_dsl are set to the rcv_dsl. This preserves historic
		* behavior.
		*/
		isl = &conn->conn_limits;
		memcpy(isl, &request->idr_limits, sizeof(*isl));
		if (isl->isl_max_recv_data_segment_length == 0) {
		conn->conn_max_recv_data_segment_length = 8192;
		conn->conn_max_send_data_segment_length = 8192;
		isl->isl_max_recv_data_segment_length = 8192;
		} else {
		conn->conn_max_recv_data_segment_length =
		isl->isl_max_recv_data_segment_length;
		conn->conn_max_send_data_segment_length =
		isl->isl_max_recv_data_segment_length;
		}
		if (isl->isl_max_send_data_segment_length == 0) {
		isl->isl_max_send_data_segment_length =
		isl->isl_max_recv_data_segment_length;
		} else {
		conn->conn_max_send_data_segment_length =
		isl->isl_max_send_data_segment_length;
		}
		if (isl->isl_max_burst_length == 0)
		isl->isl_max_burst_length = conn->conn_max_burst_length;
		if (isl->isl_first_burst_length == 0) {
		if (isl->isl_max_burst_length < (int)conn->conn_first_burst_length)
		isl->isl_first_burst_length = isl->isl_max_burst_length;
		else
		isl->isl_first_burst_length = conn->conn_first_burst_length;
		}

from_addr = conn->conn_conf.isc_initiator_addr;		from_addr = conn->conn_conf.isc_initiator_addr;
to_addr = conn->conn_conf.isc_target_addr;		to_addr = conn->conn_conf.isc_target_addr;

if (from_addr[0] != '\0')		if (from_addr[0] != '\0')
resolve_addr(conn, from_addr, &from_ai, true);		resolve_addr(conn, from_addr, &from_ai, true);
else		else
from_ai = NULL;		from_ai = NULL;

▲ Show 20 Lines • Show All 79 Lines • ▼ Show 20 Lines	handoff(struct connection *conn)
strlcpy(idh.idh_target_alias, conn->conn_target_alias,		strlcpy(idh.idh_target_alias, conn->conn_target_alias,
sizeof(idh.idh_target_alias));		sizeof(idh.idh_target_alias));
idh.idh_tsih = conn->conn_tsih;		idh.idh_tsih = conn->conn_tsih;
idh.idh_statsn = conn->conn_statsn;		idh.idh_statsn = conn->conn_statsn;
idh.idh_header_digest = conn->conn_header_digest;		idh.idh_header_digest = conn->conn_header_digest;
idh.idh_data_digest = conn->conn_data_digest;		idh.idh_data_digest = conn->conn_data_digest;
idh.idh_initial_r2t = conn->conn_initial_r2t;		idh.idh_initial_r2t = conn->conn_initial_r2t;
idh.idh_immediate_data = conn->conn_immediate_data;		idh.idh_immediate_data = conn->conn_immediate_data;
idh.idh_max_data_segment_length = conn->conn_max_data_segment_length;		idh.idh_max_recv_data_segment_length =
		conn->conn_max_recv_data_segment_length;
		idh.idh_max_send_data_segment_length =
		conn->conn_max_send_data_segment_length;
idh.idh_max_burst_length = conn->conn_max_burst_length;		idh.idh_max_burst_length = conn->conn_max_burst_length;
idh.idh_first_burst_length = conn->conn_first_burst_length;		idh.idh_first_burst_length = conn->conn_first_burst_length;

error = ioctl(conn->conn_iscsi_fd, ISCSIDHANDOFF, &idh);		error = ioctl(conn->conn_iscsi_fd, ISCSIDHANDOFF, &idh);
if (error != 0)		if (error != 0)
log_err(1, "ISCSIDHANDOFF");		log_err(1, "ISCSIDHANDOFF");
}		}

▲ Show 20 Lines • Show All 318 Lines • Show Last 20 Lines