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target/iscsi: Keep local_ip as the actual sockaddr

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This is a more natural format that lets us format it with the appropriate
printk specifier as needed.

This also lets us handle v4-mapped ipv6 addresses a little more nicely, by
storing the addr as an actual v4 sockaddr in conn->local_sockaddr.

Finally, we no longer need to maintain variables for port, since this is
contained in sockaddr. Remove iscsi_np.np_port and iscsi_conn.local_port.

Signed-off-by: Andy Grover <agrover@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This commit is contained in:
Andy Grover 2015-08-24 10:26:04 -07:00 committed by Nicholas Bellinger
parent 76c28f1fcf
commit 69d755747d
6 changed files with 48 additions and 65 deletions
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8
drivers/infiniband/ulp/isert/ib_isert.c
View file

@ -3218,9 +3218,7 @@ isert_set_conn_info(struct iscsi_np *np, struct iscsi_conn *conn,
conn->login_port = ntohs(sock_in6->sin6_port);
sock_in6 = (struct sockaddr_in6 *)&cm_route->addr.src_addr;
snprintf(conn->local_ip, sizeof(conn->local_ip), "%pI6c",
&sock_in6->sin6_addr.in6_u);
conn->local_port = ntohs(sock_in6->sin6_port);
memcpy(&conn->local_sockaddr , &sock_in6, sizeof(sock_in6));
} else {
sock_in = (struct sockaddr_in *)&cm_route->addr.dst_addr;
sprintf(conn->login_ip, "%pI4",
@ -3228,9 +3226,7 @@ isert_set_conn_info(struct iscsi_np *np, struct iscsi_conn *conn,
conn->login_port = ntohs(sock_in->sin_port);
sock_in = (struct sockaddr_in *)&cm_route->addr.src_addr;
sprintf(conn->local_ip, "%pI4",
&sock_in->sin_addr.s_addr);
conn->local_port = ntohs(sock_in->sin_port);
memcpy(&conn->local_sockaddr , &sock_in, sizeof(sock_in));
}
}

46
drivers/target/iscsi/iscsi_target.c
View file

@ -276,7 +276,7 @@ bool iscsit_check_np_match(
struct sockaddr_in *sock_in, *sock_in_e;
struct sockaddr_in6 *sock_in6, *sock_in6_e;
bool ip_match = false;
u16 port;
u16 port, port_e;
if (sockaddr->ss_family == AF_INET6) {
sock_in6 = (struct sockaddr_in6 *)sockaddr;
@ -288,6 +288,7 @@ bool iscsit_check_np_match(
ip_match = true;
port = ntohs(sock_in6->sin6_port);
port_e = ntohs(sock_in6_e->sin6_port);
} else {
sock_in = (struct sockaddr_in *)sockaddr;
sock_in_e = (struct sockaddr_in *)&np->np_sockaddr;
@ -296,9 +297,10 @@ bool iscsit_check_np_match(
ip_match = true;
port = ntohs(sock_in->sin_port);
port_e = ntohs(sock_in_e->sin_port);
}
if (ip_match && (np->np_port == port) &&
if (ip_match && (port_e == port) &&
(np->np_network_transport == network_transport))
return true;
@ -343,8 +345,6 @@ struct iscsi_np *iscsit_add_np(
struct __kernel_sockaddr_storage *sockaddr,
int network_transport)
{
struct sockaddr_in *sock_in;
struct sockaddr_in6 *sock_in6;
struct iscsi_np *np;
int ret;
@ -367,14 +367,6 @@ struct iscsi_np *iscsit_add_np(
}
np->np_flags |= NPF_IP_NETWORK;
if (sockaddr->ss_family == AF_INET6) {
sock_in6 = (struct sockaddr_in6 *)sockaddr;
np->np_port = ntohs(sock_in6->sin6_port);
} else {
sock_in = (struct sockaddr_in *)sockaddr;
np->np_port = ntohs(sock_in->sin_port);
}
np->np_network_transport = network_transport;
spin_lock_init(&np->np_thread_lock);
init_completion(&np->np_restart_comp);
@ -408,8 +400,8 @@ struct iscsi_np *iscsit_add_np(
list_add_tail(&np->np_list, &g_np_list);
mutex_unlock(&np_lock);
pr_debug("CORE[0] - Added Network Portal: %pISc:%hu on %s\n",
&np->np_sockaddr, np->np_port, np->np_transport->name);
pr_debug("CORE[0] - Added Network Portal: %pISpc on %s\n",
&np->np_sockaddr, np->np_transport->name);
return np;
}
@ -478,8 +470,8 @@ int iscsit_del_np(struct iscsi_np *np)
list_del(&np->np_list);
mutex_unlock(&np_lock);
pr_debug("CORE[0] - Removed Network Portal: %pISc:%hu on %s\n",
&np->np_sockaddr, np->np_port, np->np_transport->name);
pr_debug("CORE[0] - Removed Network Portal: %pISpc on %s\n",
&np->np_sockaddr, np->np_transport->name);
iscsit_put_transport(np->np_transport);
kfree(np);
@ -3460,6 +3452,7 @@ iscsit_build_sendtargets_response(struct iscsi_cmd *cmd,
tpg_np_list) {
struct iscsi_np *np = tpg_np->tpg_np;
bool inaddr_any = iscsit_check_inaddr_any(np);
struct __kernel_sockaddr_storage *sockaddr;
if (np->np_network_transport != network_transport)
continue;
@ -3487,18 +3480,15 @@ iscsit_build_sendtargets_response(struct iscsi_cmd *cmd,
}
}
if (inaddr_any) {
len = sprintf(buf, "TargetAddress="
"%s:%hu,%hu",
conn->local_ip,
np->np_port,
tpg->tpgt);
} else {
len = sprintf(buf, "TargetAddress="
"%pISpc,%hu",
&np->np_sockaddr,
tpg->tpgt);
}
if (inaddr_any)
sockaddr = &conn->local_sockaddr;
else
sockaddr = &np->np_sockaddr;
len = sprintf(buf, "TargetAddress="
"%pISpc,%hu",
sockaddr,
tpg->tpgt);
len += 1;
if ((len + payload_len) > buffer_len) {

4
drivers/target/iscsi/iscsi_target_configfs.c
View file

@ -344,8 +344,8 @@ static void lio_target_call_delnpfromtpg(
se_tpg = &tpg->tpg_se_tpg;
pr_debug("LIO_Target_ConfigFS: DEREGISTER -> %s TPGT: %hu"
" PORTAL: %pISc:%hu\n", config_item_name(&se_tpg->se_tpg_wwn->wwn_group.cg_item),
tpg->tpgt, &tpg_np->tpg_np->np_sockaddr, tpg_np->tpg_np->np_port);
" PORTAL: %pISpc\n", config_item_name(&se_tpg->se_tpg_wwn->wwn_group.cg_item),
tpg->tpgt, &tpg_np->tpg_np->np_sockaddr);
ret = iscsit_tpg_del_network_portal(tpg, tpg_np);
if (ret < 0)

43
drivers/target/iscsi/iscsi_target_login.c
View file

@ -729,8 +729,8 @@ int iscsi_post_login_handler(
}
pr_debug("iSCSI Login successful on CID: %hu from %s to"
" %s:%hu,%hu\n", conn->cid, conn->login_ip,
conn->local_ip, conn->local_port, tpg->tpgt);
" %pISpc,%hu\n", conn->cid, conn->login_ip,
&conn->local_sockaddr, tpg->tpgt);
list_add_tail(&conn->conn_list, &sess->sess_conn_list);
atomic_inc(&sess->nconn);
@ -774,8 +774,8 @@ int iscsi_post_login_handler(
pr_debug("Moving to TARG_SESS_STATE_LOGGED_IN.\n");
sess->session_state = TARG_SESS_STATE_LOGGED_IN;
pr_debug("iSCSI Login successful on CID: %hu from %s to %s:%hu,%hu\n",
conn->cid, conn->login_ip, conn->local_ip, conn->local_port,
pr_debug("iSCSI Login successful on CID: %hu from %s to %pISpc,%hu\n",
conn->cid, conn->login_ip, &conn->local_sockaddr,
tpg->tpgt);
spin_lock_bh(&sess->conn_lock);
@ -823,8 +823,8 @@ static void iscsi_handle_login_thread_timeout(unsigned long data)
struct iscsi_np *np = (struct iscsi_np *) data;
spin_lock_bh(&np->np_thread_lock);
pr_err("iSCSI Login timeout on Network Portal %pISc:%hu\n",
&np->np_sockaddr, np->np_port);
pr_err("iSCSI Login timeout on Network Portal %pISpc\n",
&np->np_sockaddr);
if (np->np_login_timer_flags & ISCSI_TF_STOP) {
spin_unlock_bh(&np->np_thread_lock);
@ -1027,13 +1027,15 @@ int iscsit_accept_np(struct iscsi_np *np, struct iscsi_conn *conn)
rc = conn->sock->ops->getname(conn->sock,
(struct sockaddr *)&sock_in6, &err, 0);
if (!rc) {
if (!ipv6_addr_v4mapped(&sock_in6.sin6_addr))
snprintf(conn->local_ip, sizeof(conn->local_ip), "[%pI6c]",
&sock_in6.sin6_addr.in6_u);
else
snprintf(conn->local_ip, sizeof(conn->local_ip), "%pI4",
&sock_in6.sin6_addr.s6_addr32[3]);
conn->local_port = ntohs(sock_in6.sin6_port);
if (!ipv6_addr_v4mapped(&sock_in6.sin6_addr)) {
memcpy(&conn->local_sockaddr, &sock_in6, sizeof(sock_in6));
} else {
/* Pretend to be an ipv4 socket */
sock_in.sin_family = AF_INET;
sock_in.sin_port = sock_in6.sin6_port;
memcpy(&sock_in.sin_addr, &sock_in6.sin6_addr.s6_addr32[3], 4);
memcpy(&conn->local_sockaddr, &sock_in, sizeof(sock_in));
}
}
} else {
memset(&sock_in, 0, sizeof(struct sockaddr_in));
@ -1048,11 +1050,8 @@ int iscsit_accept_np(struct iscsi_np *np, struct iscsi_conn *conn)
rc = conn->sock->ops->getname(conn->sock,
(struct sockaddr *)&sock_in, &err, 0);
if (!rc) {
sprintf(conn->local_ip, "%pI4",
&sock_in.sin_addr.s_addr);
conn->local_port = ntohs(sock_in.sin_port);
}
if (!rc)
memcpy(&conn->local_sockaddr, &sock_in, sizeof(sock_in));
}
return 0;
@ -1302,8 +1301,8 @@ static int __iscsi_target_login_thread(struct iscsi_np *np)
spin_lock_bh(&np->np_thread_lock);
if (np->np_thread_state != ISCSI_NP_THREAD_ACTIVE) {
spin_unlock_bh(&np->np_thread_lock);
pr_err("iSCSI Network Portal on %pISc:%hu currently not"
" active.\n", &np->np_sockaddr, np->np_port);
pr_err("iSCSI Network Portal on %pISpc currently not"
" active.\n", &np->np_sockaddr);
iscsit_tx_login_rsp(conn, ISCSI_STATUS_CLS_TARGET_ERR,
ISCSI_LOGIN_STATUS_SVC_UNAVAILABLE);
goto new_sess_out;
@ -1313,8 +1312,8 @@ static int __iscsi_target_login_thread(struct iscsi_np *np)
conn->network_transport = np->np_network_transport;
pr_debug("Received iSCSI login request from %s on %s Network"
" Portal %s:%hu\n", conn->login_ip, np->np_transport->name,
conn->local_ip, conn->local_port);
" Portal %pISpc\n", conn->login_ip, np->np_transport->name,
&conn->local_sockaddr);
pr_debug("Moving to TARG_CONN_STATE_IN_LOGIN.\n");
conn->conn_state = TARG_CONN_STATE_IN_LOGIN;

8
drivers/target/iscsi/iscsi_target_tpg.c
View file

@ -514,8 +514,8 @@ struct iscsi_tpg_np *iscsit_tpg_add_network_portal(
spin_unlock(&tpg_np_parent->tpg_np_parent_lock);
}
pr_debug("CORE[%s] - Added Network Portal: %pISc:%hu,%hu on %s\n",
tpg->tpg_tiqn->tiqn, &np->np_sockaddr, np->np_port, tpg->tpgt,
pr_debug("CORE[%s] - Added Network Portal: %pISpc,%hu on %s\n",
tpg->tpg_tiqn->tiqn, &np->np_sockaddr, tpg->tpgt,
np->np_transport->name);
return tpg_np;
@ -528,8 +528,8 @@ static int iscsit_tpg_release_np(
{
iscsit_clear_tpg_np_login_thread(tpg_np, tpg, true);
pr_debug("CORE[%s] - Removed Network Portal: %pISc:%hu,%hu on %s\n",
tpg->tpg_tiqn->tiqn, &np->np_sockaddr, np->np_port, tpg->tpgt,
pr_debug("CORE[%s] - Removed Network Portal: %pISpc,%hu on %s\n",
tpg->tpg_tiqn->tiqn, &np->np_sockaddr, tpg->tpgt,
np->np_transport->name);
tpg_np->tpg_np = NULL;

4
include/target/iscsi/iscsi_target_core.h
View file

@ -519,7 +519,6 @@ struct iscsi_conn {
u16 cid;
/* Remote TCP Port */
u16 login_port;
u16 local_port;
int net_size;
int login_family;
u32 auth_id;
@ -531,7 +530,7 @@ struct iscsi_conn {
u32 stat_sn;
#define IPV6_ADDRESS_SPACE 48
unsigned char login_ip[IPV6_ADDRESS_SPACE];
unsigned char local_ip[IPV6_ADDRESS_SPACE];
struct __kernel_sockaddr_storage local_sockaddr;
int conn_usage_count;
int conn_waiting_on_uc;
atomic_t check_immediate_queue;
@ -778,7 +777,6 @@ struct iscsi_np {
enum iscsi_timer_flags_table np_login_timer_flags;
u32 np_exports;
enum np_flags_table np_flags;
u16 np_port;
spinlock_t np_thread_lock;
struct completion np_restart_comp;
struct socket *np_socket;