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| author | Mike Christie <michaelc@cs.wisc.edu> | 2011-02-16 15:04:35 -0600 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@suse.de> | 2011-02-24 12:41:08 -0500 |
| commit | 00f3708e6ed1698d6aee3901ea991197e31a8007 (patch) | |
| tree | 6ae295fe4c03de52525f32c4bf8a732e19aa1c82 | |
| parent | bbc5261b2cb5e69754c935ea2466fb22775f0e48 (diff) | |
| download | lwn-00f3708e6ed1698d6aee3901ea991197e31a8007.tar.gz lwn-00f3708e6ed1698d6aee3901ea991197e31a8007.zip | |
[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: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| -rw-r--r-- | drivers/scsi/libiscsi.c | 44 | ||||
| -rw-r--r-- | include/scsi/libiscsi.h | 2 |
2 files changed, 43 insertions, 3 deletions
diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c index da8b61543ee4..0c550d5b9133 100644 --- a/drivers/scsi/libiscsi.c +++ b/drivers/scsi/libiscsi.c @@ -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; } diff --git a/include/scsi/libiscsi.h b/include/scsi/libiscsi.h index 748382b32b52..4bef19fb3a65 100644 --- a/include/scsi/libiscsi.h +++ b/include/scsi/libiscsi.h @@ -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); |