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author | Remi Denis-Courmont <remi.denis-courmont@nokia.com> | 2008-09-22 20:09:13 -0700 |
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committer | David S. Miller <davem@davemloft.net> | 2008-09-22 20:09:13 -0700 |
commit | be0c52bfed7f7828494fa00060efd5d758e92580 (patch) | |
tree | 1261d101dee4c1d440d1d90c974c62339a556843 /include/linux/phonet.h | |
parent | 87ab4e20b445c6d2d2727ab4f96fa17f7259511e (diff) | |
download | op-kernel-dev-be0c52bfed7f7828494fa00060efd5d758e92580.zip op-kernel-dev-be0c52bfed7f7828494fa00060efd5d758e92580.tar.gz |
Phonet: emit errors when a packet cannot be delivered locally
When there is no listener socket for a received packet, send an error
back to the sender.
Signed-off-by: Remi Denis-Courmont <remi.denis-courmont@nokia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/phonet.h')
-rw-r--r-- | include/linux/phonet.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/include/linux/phonet.h b/include/linux/phonet.h index 001c0e6..3a027f5 100644 --- a/include/linux/phonet.h +++ b/include/linux/phonet.h @@ -45,6 +45,38 @@ struct phonethdr { __u8 pn_sobj; } __attribute__((packed)); +/* Common Phonet payload header */ +struct phonetmsg { + __u8 pn_trans_id; /* transaction ID */ + __u8 pn_msg_id; /* message type */ + union { + struct { + __u8 pn_submsg_id; /* message subtype */ + __u8 pn_data[5]; + } base; + struct { + __u16 pn_e_res_id; /* extended resource ID */ + __u8 pn_e_submsg_id; /* message subtype */ + __u8 pn_e_data[3]; + } ext; + } pn_msg_u; +}; +#define PN_COMMON_MESSAGE 0xF0 +#define PN_PREFIX 0xE0 /* resource for extended messages */ +#define pn_submsg_id pn_msg_u.base.pn_submsg_id +#define pn_e_submsg_id pn_msg_u.ext.pn_e_submsg_id +#define pn_e_res_id pn_msg_u.ext.pn_e_res_id +#define pn_data pn_msg_u.base.pn_data +#define pn_e_data pn_msg_u.ext.pn_e_data + +/* data for unreachable errors */ +#define PN_COMM_SERVICE_NOT_IDENTIFIED_RESP 0x01 +#define PN_COMM_ISA_ENTITY_NOT_REACHABLE_RESP 0x14 +#define pn_orig_msg_id pn_data[0] +#define pn_status pn_data[1] +#define pn_e_orig_msg_id pn_e_data[0] +#define pn_e_status pn_e_data[1] + /* Phonet socket address structure */ struct sockaddr_pn { sa_family_t spn_family; |