From: Sharan Santhanam <sharan.santhanam@neclab.eu>
Date: Wed, 13 Jun 2018 00:17:45 +0000 (+0200)
Subject: Implement bind() for libvfscore
X-Git-Tag: RELEASE-0.3~13
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=2b6b4f8cd6fff149036765673630c002b5e65484;p=unikraft%2Flibs%2Flwip.git

Implement bind() for libvfscore

Signed-off-by: Sharan Santhanam <sharan.santhanam@neclab.eu>
---

diff --git a/socket_glue.c b/socket_glue.c
index 2148c39..c323ffc 100644
--- a/socket_glue.c
+++ b/socket_glue.c
@@ -4,6 +4,7 @@
 #include <uk/alloc.h>
 #include <uk/essentials.h>
 #include <uk/print.h>
+#include <uk/errptr.h>
 #include <stdio.h>
 #include <errno.h>
 #include <lwip/sockets.h>
@@ -20,6 +21,21 @@ struct sock_net_file {
 	int sock_fd;
 };
 
+static inline struct sock_net_file *sock_net_file_get(int fd)
+{
+	struct sock_net_file *file = NULL;
+	struct vfscore_file *fos;
+	fos  = vfscore_get_file(fd);
+	if(NULL == fos) {
+		uk_printd(DLVL_ERR,"failed with invalid descriptor\n");
+		file = ERR2PTR(-EINVAL);
+		goto EXIT;
+	}
+	file = __containerof(fos, struct sock_net_file, vfscore_file);
+EXIT:
+	return file;
+}
+
 static int sock_fd_alloc(struct vfscore_fops *fops, int sock_fd)
 {
 	int ret = 0;
@@ -124,6 +140,23 @@ int accept(int s, struct sockaddr *addr, socklen_t *addrlen)
 int bind(int s, const struct sockaddr *name, socklen_t namelen)
 {
 	int ret = 0;
+	struct sock_net_file *file = NULL;
+	file = sock_net_file_get(s);
+	if(PTRISERR(file)) {
+		uk_printd(DLVL_ERR, "failed to identify the socket descriptor \n");
+		ret = -1;
+		/* Setting the errno */
+		SOCK_NET_SET_ERRNO(PTR2ERR(file));
+		goto EXIT;
+	}
+	/* Bind an incoming connection */
+	ret = lwip_bind(file->sock_fd, name, namelen);
+	if(0 > ret) {
+		uk_printd(DLVL_ERR, "failed to bind with the socket \n");
+		ret = -1;
+		goto EXIT;
+	}
+EXIT:
 	return ret;
 }