From be288b60278c78eccfd347aacf4d3dd8771215a9 Mon Sep 17 00:00:00 2001
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From: Marc Gonzalez <marc_gonzalez@sigmadesigns.com>
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Date: Tue, 12 Jan 2016 14:01:42 +0100
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Subject: [PATCH] Port one/one_udp.c to Linux 4.1
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Kernel commit c0371da6047a replaced msg_iov and msg_iovlen with msg_iter
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in struct msghdr since 3.19
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one/one_udp.c: In function 'ksocket_send_iov':
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one/one_udp.c:186:9: error: 'struct msghdr' has no member named 'msg_iov'
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one/one_udp.c:187:9: error: 'struct msghdr' has no member named 'msg_iovlen'
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one/one_udp.c: In function 'ksocket_receive':
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one/one_udp.c:221:9: error: 'struct msghdr' has no member named 'msg_iov'
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one/one_udp.c:222:9: error: 'struct msghdr' has no member named 'msg_iovlen'
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The iov_iter interface
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https://lwn.net/Articles/625077/
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Kernel commit d8725c86aeba dropped the len parameter in sock_sendmsg
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since 4.1
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one/one_udp.c: In function 'ksocket_send_iov':
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one/one_udp.c:192:13: error: too many arguments to function 'sock_sendmsg'
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Signed-off-by: Marc Gonzalez <marc_gonzalez@sigmadesigns.com>
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Kernel commit 2da62906b1e29 dropped the size parameter in sock_recvmsg
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since 4.7
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In function 'ksocket_receive'
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one/one_udp.c:235:13: error: too many arguments to function 'sock_recvmsg'
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Signed-off-by: Matthew Shyu <matthew.shyu@amlogic.com>
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---
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one/one_udp.c | 34 +++++++++++++++++++---------------
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1 file changed, 19 insertions(+), 15 deletions(-)
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diff --git a/one/one_udp.c b/one/one_udp.c
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index 26b9e6a..9b59529 100644
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--- a/one/one_udp.c
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+++ b/one/one_udp.c
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@@ -161,7 +161,7 @@ ksocket_send_iov( struct socket *sock,
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const struct iovec *iov,
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size_t iov_count )
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{
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- struct msghdr msg;
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+ struct msghdr msg = { addr, sizeof *addr };
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mm_segment_t oldfs;
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int size = 0;
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size_t len = 0;
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@@ -178,18 +178,20 @@ ksocket_send_iov( struct socket *sock,
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for (i=0; i<iov_count; i++)
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len += iov[i].iov_len;
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- msg.msg_flags = 0;
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- msg.msg_name = addr;
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- msg.msg_namelen = sizeof(struct sockaddr_in);
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- msg.msg_control = NULL;
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- msg.msg_controllen = 0;
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+#if LINUX_VERSION_CODE < KERNEL_VERSION(3,19,0) // commit c0371da6047a
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msg.msg_iov = (struct iovec*) iov;
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msg.msg_iovlen = iov_count;
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- msg.msg_control = NULL;
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+#else
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+ iov_iter_init(&msg.msg_iter, WRITE, iov, iov_count, len);
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+#endif
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oldfs = get_fs();
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set_fs(KERNEL_DS);
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- size = sock_sendmsg(sock,&msg,len);
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+#if LINUX_VERSION_CODE < KERNEL_VERSION(4,1,0) // commit d8725c86aeba
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+ size = sock_sendmsg(sock, &msg, len);
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+#else
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+ size = sock_sendmsg(sock, &msg);
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+#endif
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set_fs(oldfs);
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return size;
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@@ -198,7 +200,7 @@ ksocket_send_iov( struct socket *sock,
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static int
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ksocket_receive(struct socket* sock, struct sockaddr_in* addr, void *buf, int len)
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{
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- struct msghdr msg;
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+ struct msghdr msg = { addr, sizeof *addr };
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struct iovec iov;
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mm_segment_t oldfs;
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int size = 0;
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@@ -213,18 +215,20 @@ ksocket_receive(struct socket* sock, struct sockaddr_in* addr, void *buf, int le
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iov.iov_base = buf;
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iov.iov_len = len;
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- msg.msg_flags = 0;
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- msg.msg_name = addr;
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- msg.msg_namelen = sizeof(struct sockaddr_in);
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- msg.msg_control = NULL;
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- msg.msg_controllen = 0;
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+#if LINUX_VERSION_CODE < KERNEL_VERSION(3,19,0) // commit c0371da6047a
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msg.msg_iov = &iov;
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msg.msg_iovlen = 1;
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- msg.msg_control = NULL;
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+#else
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+ iov_iter_init(&msg.msg_iter, READ, &iov, 1, len);
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+#endif
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oldfs = get_fs();
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set_fs(KERNEL_DS);
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+#if LINUX_VERSION_CODE < KERNEL_VERSION(4,7,0) // commit 2da62906b1e29
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size = sock_recvmsg(sock,&msg,len,msg.msg_flags);
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+#else
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+ size = sock_recvmsg(sock, &msg,msg.msg_flags);
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+#endif
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set_fs(oldfs);
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return size;
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--
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2.11.0
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