diff options
| author | Binu Abraham <binu_abraham@looptelecom.com> | 2019-07-10 11:46:40 +0800 |
|---|---|---|
| committer | Binu Abraham <binu_abraham@looptelecom.com> | 2019-07-10 11:46:40 +0800 |
| commit | be6a32454b76ec3938629d28c6a332c3c5436d2c (patch) | |
| tree | f7a3fdc5c67249c920ad8cf773de47c6f8f76aa0 /pimd/pim_msg.h | |
| parent | f85d5e3d972dc507cfd277a62c938d967cb28974 (diff) | |
pimd: handle endianness in pim header structure
structures with bit fields in pim_msg.h should consider endianness
Signed-off-by: Binu <binu_abraham@looptelecom.com>
Diffstat (limited to 'pimd/pim_msg.h')
| -rw-r--r-- | pimd/pim_msg.h | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/pimd/pim_msg.h b/pimd/pim_msg.h index b6e2cada1f..2d69a4b03a 100644 --- a/pimd/pim_msg.h +++ b/pimd/pim_msg.h @@ -42,7 +42,7 @@ enum pim_msg_address_family { }; /* - * Network Order pim_msg_hdr + * pim_msg_hdr * ========================= * PIM Header definition as per RFC 5059. N bit introduced to indicate * do-not-forward option in PIM Boot strap Message. @@ -53,10 +53,19 @@ enum pim_msg_address_family { * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ */ struct pim_msg_header { +#if (BYTE_ORDER == LITTLE_ENDIAN) uint8_t type : 4; uint8_t ver : 4; + uint8_t reserved : 7; + uint8_t Nbit : 1; /* No Fwd Bit */ +#elif (BYTE_ORDER == BIG_ENDIAN) + uint8_t ver : 4; + uint8_t type : 4; uint8_t Nbit : 1; /* No Fwd Bit */ uint8_t reserved : 7; +#else +#error"Please set byte order" +#endif uint16_t checksum; } __attribute__((packed)); @@ -79,9 +88,17 @@ struct pim_encoded_ipv4_unicast { struct pim_encoded_group_ipv4 { uint8_t family; uint8_t ne; +#if (BYTE_ORDER == LITTLE_ENDIAN) + uint8_t sz : 1; /* scope zone bit */ + uint8_t reserved : 6; /* Reserved */ + uint8_t bidir : 1; /* Bidir bit */ +#elif (BYTE_ORDER == BIG_ENDIAN) uint8_t bidir : 1; /* Bidir bit */ uint8_t reserved : 6; /* Reserved */ uint8_t sz : 1; /* scope zone bit */ +#else +#error"Please set byte order" +#endif uint8_t mask; struct in_addr addr; } __attribute__((packed)); |