From d8991c9e1de373a1c55ad2f8ca07bb3fbda1aa5c Mon Sep 17 00:00:00 2001
From: Harish Zunjarrao <harish.zunjarrao@qlogic.com>
Date: Fri, 18 Oct 2013 09:29:22 -0400
Subject: [PATCH] iscsi tools: Use single function to set integer network
parameters
Signed-off-by: Harish Zunjarrao <harish.zunjarrao@qlogic.com>
Signed-off-by: Adheer Chandravanshi <adheer.chandravanshi@qlogic.com>
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
---
usr/iface.c | 162 +++++++++++++++++++++++++++++++++---------------------------
1 file changed, 90 insertions(+), 72 deletions(-)
diff --git a/usr/iface.c b/usr/iface.c
index 292c804..6454f75 100644
--- a/usr/iface.c
+++ b/usr/iface.c
@@ -1223,58 +1223,68 @@ int iface_get_param_count(struct iface_rec *iface, int iface_all)
return iface_params.count;
}
-/* IPv4/IPv6 Port: 3260 or User defined */
-static int iface_fill_port(struct iovec *iov, struct iface_rec *iface,
- uint32_t iface_type)
+/* write integer parameter value */
+static int iface_fill_int_param_val(struct iovec *iov, uint32_t iface_num,
+ uint8_t iface_type, uint16_t param,
+ uint8_t param_type, uint32_t param_len,
+ uint32_t param_val)
{
int len;
struct iscsi_iface_param_info *net_param;
- uint16_t port = 3260;
struct nlattr *attr;
+ uint8_t val8 = 0;
+ uint16_t val16 = 0;
+ uint32_t val32 = 0;
+ char *val = NULL;
- len = sizeof(struct iscsi_iface_param_info) + sizeof(port);
- iov->iov_base = iscsi_nla_alloc(ISCSI_NET_PARAM_PORT, len);
- if (!iov->iov_base)
- return 1;
- attr = iov->iov_base;
- iov->iov_len = NLA_ALIGN(attr->nla_len);
-
- net_param = (struct iscsi_iface_param_info *)ISCSI_NLA_DATA(attr);
- net_param->param = ISCSI_NET_PARAM_PORT;
- net_param->iface_type = iface_type;
- net_param->iface_num = iface->iface_num;
- net_param->param_type = ISCSI_NET_PARAM;
- net_param->len = 2;
- if (iface->port)
- port = iface->port;
- memcpy(net_param->value, &port, net_param->len);
- return 0;
-}
-
-static int iface_fill_mtu(struct iovec *iov, struct iface_rec *iface,
- uint32_t iface_type)
-{
- int len;
- struct iscsi_iface_param_info *net_param;
- uint16_t mtu = 0;
- struct nlattr *attr;
-
- len = sizeof(struct iscsi_iface_param_info) + 2;
- iov->iov_base = iscsi_nla_alloc(ISCSI_NET_PARAM_MTU, len);
+ len = sizeof(struct iscsi_iface_param_info) + param_len;
+ iov->iov_base = iscsi_nla_alloc(param, len);
if (!(iov->iov_base))
return 1;
+
attr = iov->iov_base;
iov->iov_len = NLA_ALIGN(attr->nla_len);
-
net_param = (struct iscsi_iface_param_info *)ISCSI_NLA_DATA(attr);
- net_param->param = ISCSI_NET_PARAM_MTU;
+ net_param->iface_num = iface_num;
+ net_param->len = param_len;
+ net_param->param = param;
net_param->iface_type = iface_type;
- net_param->iface_num = iface->iface_num;
- net_param->param_type = ISCSI_NET_PARAM;
- net_param->len = 2;
- mtu = iface->mtu;
- memcpy(net_param->value, &mtu, net_param->len);
+ net_param->param_type = param_type;
+ switch (param_len) {
+ case 1:
+ val8 = (uint8_t)param_val;
+ val = (char *)&val8;
+ break;
+
+ case 2:
+ val16 = (uint16_t)param_val;
+ val = (char *)&val16;
+ break;
+
+ case 4:
+ val32 = (uint32_t)param_val;
+ val = (char *)&val32;
+ break;
+
+ default:
+ goto free;
+ }
+ memcpy(net_param->value, val, param_len);
return 0;
+free:
+ free(iov->iov_base);
+ iov->iov_base = NULL;
+ iov->iov_len = 0;
+ return 1;
+}
+
+#define IFACE_SET_PARAM_INTVAL(iov, inum, itype, param, ptype, plen, \
+ ival, gcnt, lcnt) { \
+ if (ival && !iface_fill_int_param_val(iov, inum, itype, param, \
+ ptype, plen, ival)) { \
+ (*gcnt)++; \
+ (*lcnt)++; \
+ } \
}
/* IPv4/IPv6 VLAN_ID: decimal value <= 4095 */
@@ -1660,22 +1670,26 @@ static int __iface_build_net_config(void *data, struct iface_rec *iface)
count++;
}
}
- if (iface->mtu) {
- if (!iface_fill_mtu(&iov[net_config->count],
- iface,
- ISCSI_IFACE_TYPE_IPV4)) {
- net_config->count++;
- count++;
- }
- }
- if (iface->port) {
- if (!iface_fill_port(&iov[net_config->count],
- iface,
- ISCSI_IFACE_TYPE_IPV4)) {
- net_config->count++;
- count++;
- }
- }
+
+ IFACE_SET_PARAM_INTVAL(&iov[net_config->count],
+ iface->iface_num,
+ ISCSI_IFACE_TYPE_IPV4,
+ ISCSI_NET_PARAM_MTU,
+ ISCSI_NET_PARAM,
+ 2,
+ iface->mtu,
+ &net_config->count,
+ &count);
+
+ IFACE_SET_PARAM_INTVAL(&iov[net_config->count],
+ iface->iface_num,
+ ISCSI_IFACE_TYPE_IPV4,
+ ISCSI_NET_PARAM_PORT,
+ ISCSI_NET_PARAM,
+ 2,
+ iface->port,
+ &net_config->count,
+ &count);
}
} else if (iptype == ISCSI_IFACE_TYPE_IPV6) {
if (!strcmp(iface->state, "disable")) {
@@ -1791,22 +1805,26 @@ static int __iface_build_net_config(void *data, struct iface_rec *iface)
count++;
}
}
- if (iface->mtu) {
- if (!iface_fill_mtu(&iov[net_config->count],
- iface,
- ISCSI_IFACE_TYPE_IPV6)) {
- net_config->count++;
- count++;
- }
- }
- if (iface->port) {
- if (!iface_fill_port(&iov[net_config->count],
- iface,
- ISCSI_IFACE_TYPE_IPV6)) {
- net_config->count++;
- count++;
- }
- }
+
+ IFACE_SET_PARAM_INTVAL(&iov[net_config->count],
+ iface->iface_num,
+ ISCSI_IFACE_TYPE_IPV6,
+ ISCSI_NET_PARAM_MTU,
+ ISCSI_NET_PARAM,
+ 2,
+ iface->mtu,
+ &net_config->count,
+ &count);
+
+ IFACE_SET_PARAM_INTVAL(&iov[net_config->count],
+ iface->iface_num,
+ ISCSI_IFACE_TYPE_IPV6,
+ ISCSI_NET_PARAM_PORT,
+ ISCSI_NET_PARAM,
+ 2,
+ iface->port,
+ &net_config->count,
+ &count);
}
}
return 0;
--
1.8.3.1