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[Qemu-devel] [PATCH 2/2 v3] linux-user: handle AF_PACKET sockaddrs in ta
From: |
Joakim Tjernlund |
Subject: |
[Qemu-devel] [PATCH 2/2 v3] linux-user: handle AF_PACKET sockaddrs in target_to_host_sockaddr |
Date: |
Sat, 12 Jul 2014 15:47:07 +0200 |
Implement conversion of the AF_PACKET sockaddr subtype
in target_to_host_sockaddr.
Signed-off-by: Joakim Tjernlund <address@hidden>
---
linux-user/syscall.c | 7 +++++++
linux-user/syscall_defs.h | 10 ++++++++++
2 files changed, 17 insertions(+)
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 3ef046a..a50229d 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -1140,6 +1140,13 @@ 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 *lladdr;
+
+ lladdr = (struct target_sockaddr_ll *)addr;
+ lladdr->sll_ifindex = tswap32(lladdr->sll_ifindex);
+ lladdr->sll_hatype = tswap16(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..c9e6323 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