From: Dmitry Eremin-Solenikov <dmitry.ereminsoleni...@linaro.org> There is no point in filling artificial AAD struct for AH just for the sake of sequence number checking. Instead use AAD just for ESP and provide separate seq_no field.
Signed-off-by: Dmitry Eremin-Solenikov <dmitry.ereminsoleni...@linaro.org> --- /** Email created from pull request 304 (lumag:ipsec-ipv6-2) ** https://github.com/Linaro/odp/pull/304 ** Patch: https://github.com/Linaro/odp/pull/304.patch ** Base sha: 4cb02e1caccb9179575e95448fd46979e17d0905 ** Merge commit sha: 6f6906b608f0626d119b255b3733a4a0863aa8d1 **/ platform/linux-generic/odp_ipsec.c | 32 ++++++++++++++------------------ 1 file changed, 14 insertions(+), 18 deletions(-) diff --git a/platform/linux-generic/odp_ipsec.c b/platform/linux-generic/odp_ipsec.c index ae2fa10a4..a48312fe9 100644 --- a/platform/linux-generic/odp_ipsec.c +++ b/platform/linux-generic/odp_ipsec.c @@ -233,6 +233,7 @@ typedef struct { struct { uint16_t hdr_len; uint16_t trl_len; + odp_u32be_t seq_no; } in; odp_u32be_t ipv4_addr; uint8_t ipv6_addr[_ODP_IPV6ADDR_LEN]; @@ -247,8 +248,10 @@ typedef struct { odp_u32be_t ver_tc_flow; uint8_t hop_limit; } ah_ipv6; + struct { + ipsec_aad_t aad; + } esp; }; - ipsec_aad_t aad; uint8_t iv[IPSEC_MAX_IV_LEN]; } ipsec_state_t; @@ -409,10 +412,11 @@ static int ipsec_in_esp(odp_packet_t *pkt, ipsec_sa->icv_len; param->override_iv_ptr = state->iv; - state->aad.spi = esp.spi; - state->aad.seq_no = esp.seq_no; + state->esp.aad.spi = esp.spi; + state->esp.aad.seq_no = esp.seq_no; + state->in.seq_no = odp_be_to_cpu_32(esp.seq_no); - param->aad.ptr = (uint8_t *)&state->aad; + param->aad.ptr = (uint8_t *)&state->esp.aad; param->auth_range.offset = ipsec_offset; param->auth_range.length = state->ip_tot_len - @@ -515,10 +519,7 @@ static int ipsec_in_ah(odp_packet_t *pkt, ipv6hdr->hop_limit = 0; } - state->aad.spi = ah.spi; - state->aad.seq_no = ah.seq_no; - - param->aad.ptr = (uint8_t *)&state->aad; + state->in.seq_no = odp_be_to_cpu_32(ah.seq_no); param->auth_range.offset = state->ip_offset; param->auth_range.length = state->ip_tot_len; @@ -614,7 +615,7 @@ static ipsec_sa_t *ipsec_in_single(odp_packet_t pkt, goto err; if (_odp_ipsec_sa_replay_precheck(ipsec_sa, - odp_be_to_cpu_32(state.aad.seq_no), + state.in.seq_no, status) < 0) goto err; @@ -659,7 +660,7 @@ static ipsec_sa_t *ipsec_in_single(odp_packet_t pkt, goto err; if (_odp_ipsec_sa_replay_update(ipsec_sa, - odp_be_to_cpu_32(state.aad.seq_no), + state.in.seq_no, status) < 0) goto err; @@ -993,10 +994,10 @@ static int ipsec_out_esp(odp_packet_t *pkt, esp.spi = odp_cpu_to_be_32(ipsec_sa->spi); esp.seq_no = odp_cpu_to_be_32(ipsec_seq_no(ipsec_sa)); - state->aad.spi = esp.spi; - state->aad.seq_no = esp.seq_no; + state->esp.aad.spi = esp.spi; + state->esp.aad.seq_no = esp.seq_no; - param->aad.ptr = (uint8_t *)&state->aad; + param->aad.ptr = (uint8_t *)&state->esp.aad; memset(&esptrl, 0, sizeof(esptrl)); esptrl.pad_len = encrypt_len - ip_data_len - _ODP_ESPTRL_LEN; @@ -1117,11 +1118,6 @@ static int ipsec_out_ah(odp_packet_t *pkt, ah.ah_len = hdr_len / 4 - 2; - state->aad.spi = ah.spi; - state->aad.seq_no = ah.seq_no; - - param->aad.ptr = (uint8_t *)&state->aad; - /* For GMAC */ if (ipsec_out_iv(state, ipsec_sa) < 0) { status->error.alg = 1;
