[Minios-devel] [UNIKRAFT/LIBLWIP PATCH] liblwip: Fetch ip_addr, net mask and gw address

[Sharan Santhanam <sharan.santhanam@xxxxxxxxx>]

The patch implements the operation to fetch the ipv4 address, net
mask and ipv4 gateway address from the uk_netdev library.

Signed-off-by: Sharan Santhanam <sharan.santhanam@xxxxxxxxx>
---
 init.c | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)

diff --git a/init.c b/init.c
index 1447a2c..7d27f65 100644
--- a/init.c
+++ b/init.c
@@ -45,6 +45,7 @@
 #endif /* CONFIG_LWIP_NOTHREADS */
 #include "netif/uknetdev.h"
 #include <uk/init.h>
+#include <arpa/inet.h>
 
 #if LWIP_NETIF_EXT_STATUS_CALLBACK && CONFIG_LWIP_NETIF_STATUS_PRINT
 #include <stdio.h>
@@ -184,6 +185,8 @@ static int liblwip_init(void)
                           devid);
 
 #if LWIP_IPV4
+               const char *addr;
+               int rc;
                ip4_arg   = NULL;
                mask4_arg = NULL;
                gw4_arg   = NULL;
@@ -205,6 +208,34 @@ static int liblwip_init(void)
                 *  gw_arg = &gw;
                 */
 
+               addr = uk_netdev_einfo_get(dev, UK_NETDEV_IPV4_ADDR_STR);
+               if (addr) {
+                       rc = inet_pton(AF_INET, addr, &ip4);
+                       if (rc <= 0)
+                               uk_pr_warn("Failed to convert the ip 
address:%s\n",
+                                               addr);
+                       else {
+                               addr = uk_netdev_einfo_get(dev, 
UK_NETDEV_IPV4_MASK_STR);
+                               rc = inet_pton(AF_INET, addr, &mask4);
+                               if (rc <= 0)
+                                       uk_pr_warn("Failed to convert the ip 
address:%s\n",
+                                                       addr);
+                               else {
+                                       ip4_arg = &ip4;
+                                       mask4_arg = &mask4;
+                               }
+                       }
+               }
+               addr = uk_netdev_einfo_get(dev, UK_NETDEV_IPV4_GW_STR);
+               if (addr) {
+                       rc = inet_pton(AF_INET, addr, &gw4);
+                       if (rc <= 0)
+                               uk_pr_warn("Failed to convert the ip 
address:%s\n",
+                                               addr);
+                       else
+                               gw4_arg = &gw4;
+               }
+
                nf = uknetdev_addif(dev, ip4_arg, mask4_arg, gw4_arg);
 #else /* LWIP_IPV4 */
                /*
-- 
2.7.4


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