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[Qemu-devel] [PATCH 2/4] linux-user: impl. sockaddr_ll


From: Joakim Tjernlund
Subject: [Qemu-devel] [PATCH 2/4] linux-user: impl. sockaddr_ll
Date: Fri, 11 Jul 2014 17:18:02 +0200

Used by AF_PACKET sockets

Signed-off-by: Joakim Tjernlund <address@hidden>
---
 linux-user/syscall.c      |  8 ++++++++
 linux-user/syscall_defs.h | 10 ++++++++++
 2 files changed, 18 insertions(+)

diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 1380f4e..a0e1ccc 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -1140,6 +1140,14 @@ static inline abi_long target_to_host_sockaddr(struct 
sockaddr *addr,
 
     memcpy(addr, target_saddr, len);
     addr->sa_family = sa_family;
+    if (sa_family == AF_PACKET) {
+           struct target_sockaddr_ll *target_lladdr, *lladdr;
+           target_lladdr = (void *)target_saddr;
+           lladdr = (void *)addr;
+
+           lladdr->sll_ifindex = tswap32(target_lladdr->sll_ifindex);
+           lladdr->sll_hatype = tswap16(target_lladdr->sll_hatype);
+    }
     unlock_user(target_saddr, target_addr, 0);
 
     return 0;
diff --git a/linux-user/syscall_defs.h b/linux-user/syscall_defs.h
index 8563027..329c9c5 100644
--- a/linux-user/syscall_defs.h
+++ b/linux-user/syscall_defs.h
@@ -121,6 +121,16 @@ struct target_sockaddr {
     uint8_t sa_data[14];
 };
 
+struct target_sockaddr_ll {
+       uint16_t sll_family;   /* Always AF_PACKET */
+       uint16_t sll_protocol; /* Physical layer protocol */
+       int      sll_ifindex;  /* Interface number */
+       uint16_t sll_hatype;   /* ARP hardware type */
+       uint8_t  sll_pkttype;  /* Packet type */
+       uint8_t  sll_halen;    /* Length of address */
+       uint8_t  sll_addr[8];  /* Physical layer address */
+};
+
 struct target_sock_filter {
     abi_ushort code;
     uint8_t jt;
-- 
1.8.5.5




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