Commit 00f3708e authored by Mike Christie's avatar Mike Christie Committed by James Bottomley
Browse files

[SCSI] libiscsi: add helper to convert addr to string 



This adds a helper to convert a addr struct to
a string. This will be used by the drivers in
the next patches.

Signed-off-by: default avatarMike Christie <michaelc@cs.wisc.edu>
Signed-off-by: default avatarJames Bottomley <James.Bottomley@suse.de>
parent bbc5261b

drivers/scsi/libiscsi.c

+41 −3
Original line number Diff line number Diff line
@@ -3352,6 +3352,47 @@ int iscsi_session_get_param(struct iscsi_cls_session *cls_session, 
}

EXPORT_SYMBOL_GPL(iscsi_session_get_param);



int iscsi_conn_get_addr_param(struct sockaddr_storage *addr,

			      enum iscsi_param param, char *buf)

{

	struct sockaddr_in6 *sin6 = NULL;

	struct sockaddr_in *sin = NULL;

	int len;



	switch (addr->ss_family) {

	case AF_INET:

		sin = (struct sockaddr_in *)addr;

		break;

	case AF_INET6:

		sin6 = (struct sockaddr_in6 *)addr;

		break;

	default:

		return -EINVAL;

	}



	switch (param) {

	case ISCSI_PARAM_CONN_ADDRESS:

	case ISCSI_HOST_PARAM_IPADDRESS:

		if (sin)

			len = sprintf(buf, "%pI4\n", &sin->sin_addr.s_addr);

		else

			len = sprintf(buf, "%pI6\n", &sin6->sin6_addr);

		break;

	case ISCSI_PARAM_CONN_PORT:

		if (sin)

			len = sprintf(buf, "%hu\n", be16_to_cpu(sin->sin_port));

		else

			len = sprintf(buf, "%hu\n",

				      be16_to_cpu(sin6->sin6_port));

		break;

	default:

		return -EINVAL;

	}



	return len;

}

EXPORT_SYMBOL_GPL(iscsi_conn_get_addr_param);



int iscsi_conn_get_param(struct iscsi_cls_conn *cls_conn,

			 enum iscsi_param param, char *buf)

{
@@ -3416,9 +3457,6 @@ int iscsi_host_get_param(struct Scsi_Host *shost, enum iscsi_host_param param, 
	case ISCSI_HOST_PARAM_INITIATOR_NAME:

		len = sprintf(buf, "%s\n", ihost->initiatorname);

		break;

	case ISCSI_HOST_PARAM_IPADDRESS:

		len = sprintf(buf, "%s\n", ihost->local_address);

		break;

	default:

		return -ENOSYS;

	}

include/scsi/libiscsi.h

+2 −0
Original line number Diff line number Diff line
@@ -394,6 +394,8 @@ extern void iscsi_session_failure(struct iscsi_session *session, 
				  enum iscsi_err err);

extern int iscsi_conn_get_param(struct iscsi_cls_conn *cls_conn,

				enum iscsi_param param, char *buf);

extern int iscsi_conn_get_addr_param(struct sockaddr_storage *addr,

				     enum iscsi_param param, char *buf);

extern void iscsi_suspend_tx(struct iscsi_conn *conn);

extern void iscsi_suspend_queue(struct iscsi_conn *conn);

extern void iscsi_conn_queue_work(struct iscsi_conn *conn);