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NFC: llcp: Socket miux is a big endian field

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The MIUX must be transmitted in big endian and as such we have to convert
it properly.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Samuel Ortiz 2013-03-20 16:06:12 +01:00
parent e279f84f30
commit 5eef666975
3 changed files with 9 additions and 6 deletions
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6
net/nfc/llcp/commands.c
View File

@ -420,7 +420,8 @@ int nfc_llcp_send_connect(struct nfc_llcp_sock *sock)
}
/* If the socket parameters are not set, use the local ones */
miux = sock->miux > LLCP_MAX_MIUX ? local->miux : sock->miux;
miux = be16_to_cpu(sock->miux) > LLCP_MAX_MIUX ?
local->miux : sock->miux;
rw = sock->rw > LLCP_MAX_RW ? local->rw : sock->rw;
miux_tlv = nfc_llcp_build_tlv(LLCP_TLV_MIUX, (u8 *)&miux, 0,
@ -475,7 +476,8 @@ int nfc_llcp_send_cc(struct nfc_llcp_sock *sock)
return -ENODEV;
/* If the socket parameters are not set, use the local ones */
miux = sock->miux > LLCP_MAX_MIUX ? local->miux : sock->miux;
miux = be16_to_cpu(sock->miux) > LLCP_MAX_MIUX ?
local->miux : sock->miux;
rw = sock->rw > LLCP_MAX_RW ? local->rw : sock->rw;
miux_tlv = nfc_llcp_build_tlv(LLCP_TLV_MIUX, (u8 *)&miux, 0,

2
net/nfc/llcp/llcp.h
View File

@ -124,7 +124,7 @@ struct nfc_llcp_sock {
char *service_name;
size_t service_name_len;
u8 rw;
u16 miux;
__be16 miux;
/* Remote link parameters */

7
net/nfc/llcp/sock.c
View File

@ -279,7 +279,7 @@ static int nfc_llcp_setsockopt(struct socket *sock, int level, int optname,
break;
}
llcp_sock->miux = (u16) opt;
llcp_sock->miux = cpu_to_be16((u16) opt);
break;
@ -323,7 +323,8 @@ static int nfc_llcp_getsockopt(struct socket *sock, int level, int optname,
break;
case NFC_LLCP_MIUX:
if (put_user(llcp_sock->miux, (u32 __user *) optval))
if (put_user(be16_to_cpu(llcp_sock->miux),
(u32 __user *) optval))
err = -EFAULT;
break;
@ -921,7 +922,7 @@ struct sock *nfc_llcp_sock_alloc(struct socket *sock, int type, gfp_t gfp)
llcp_sock->ssap = 0;
llcp_sock->dsap = LLCP_SAP_SDP;
llcp_sock->rw = LLCP_MAX_RW + 1;
llcp_sock->miux = LLCP_MAX_MIUX + 1;
llcp_sock->miux = cpu_to_be16(LLCP_MAX_MIUX + 1);
llcp_sock->remote_rw = LLCP_DEFAULT_RW;
llcp_sock->remote_miu = LLCP_DEFAULT_MIU;
llcp_sock->send_n = llcp_sock->send_ack_n = 0;