diff options
Diffstat (limited to 'net/smc/smc_clc.h')
| -rw-r--r-- | net/smc/smc_clc.h | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/net/smc/smc_clc.h b/net/smc/smc_clc.h index 5ddb0d22eb8a..63bf1dc2c1f9 100644 --- a/net/smc/smc_clc.h +++ b/net/smc/smc_clc.h @@ -60,10 +60,15 @@ struct smc_clc_msg_local { /* header2 of clc messages */ u8 mac[6]; /* mac of ib_device port */ }; +#define SMC_CLC_MAX_V6_PREFIX 8 + +/* Struct would be 4 byte aligned, but it is used in an array that is sent + * to peers and must conform to RFC7609, hence we need to use packed here. + */ struct smc_clc_ipv6_prefix { - u8 prefix[4]; + struct in6_addr prefix; u8 prefix_len; -} __packed; +} __packed; /* format defined in RFC7609 */ struct smc_clc_msg_proposal_prefix { /* prefix part of clc proposal message*/ __be32 outgoing_subnet; /* subnet mask */ @@ -79,9 +84,11 @@ struct smc_clc_msg_proposal { /* clc proposal message sent by Linux */ } __aligned(4); #define SMC_CLC_PROPOSAL_MAX_OFFSET 0x28 -#define SMC_CLC_PROPOSAL_MAX_PREFIX (8 * sizeof(struct smc_clc_ipv6_prefix)) +#define SMC_CLC_PROPOSAL_MAX_PREFIX (SMC_CLC_MAX_V6_PREFIX * \ + sizeof(struct smc_clc_ipv6_prefix)) #define SMC_CLC_MAX_LEN (sizeof(struct smc_clc_msg_proposal) + \ SMC_CLC_PROPOSAL_MAX_OFFSET + \ + sizeof(struct smc_clc_msg_proposal_prefix) + \ SMC_CLC_PROPOSAL_MAX_PREFIX + \ sizeof(struct smc_clc_msg_trail)) |