From ddba67054a587c9c8c504b2b115530b6cff89cbe Mon Sep 17 00:00:00 2001 From: Tetsuya Murakami Date: Tue, 1 Dec 2020 19:19:13 -0800 Subject: srv6-mobile: Fix the position of QFI Type: fix Signed-off-by: Tetsuya Murakami Change-Id: Ica02435c4bc198fb6c4b9e4b62a287e47689ae7a Signed-off-by: Tetsuya Murakami --- src/plugins/srv6-mobile/node.c | 63 +++++++++++------------- src/plugins/srv6-mobile/test/test_srv6_mobile.py | 2 +- 2 files changed, 31 insertions(+), 34 deletions(-) (limited to 'src/plugins/srv6-mobile') diff --git a/src/plugins/srv6-mobile/node.c b/src/plugins/srv6-mobile/node.c index d79ad707232..fd11c07e8a7 100644 --- a/src/plugins/srv6-mobile/node.c +++ b/src/plugins/srv6-mobile/node.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2019 Arrcus Inc and/or its affiliates. + * Copyright (c) 2020 Arrcus Inc and/or its affiliates. * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at: @@ -1324,7 +1324,6 @@ VLIB_NODE_FN (srv6_end_m_gtp6_e) (vlib_main_t * vm, u8 ie_buf[GTPU_IE_MAX_SIZ]; index = ls0->localsid_prefix_len; - index += 8; offset = index / 8; shift = index % 8; @@ -1332,23 +1331,26 @@ VLIB_NODE_FN (srv6_end_m_gtp6_e) (vlib_main_t * vm, if (PREDICT_TRUE (shift == 0)) { + qfi = dst0.as_u8[offset]; + if (gtpu_type == GTPU_TYPE_ECHO_REQUEST || gtpu_type == GTPU_TYPE_ECHO_REPLY || gtpu_type == GTPU_TYPE_ERROR_INDICATION) { - clib_memcpy_fast (&seq, &dst0.as_u8[offset], 2); + clib_memcpy_fast (&seq, &dst0.as_u8[offset + 1], 2); } else { - clib_memcpy_fast (teid8p, &dst0.as_u8[offset], 4); + clib_memcpy_fast (teid8p, &dst0.as_u8[offset + 1], 4); } - - qfi = dst0.as_u8[offset + 4]; } else { u8 *sp; + qfi |= dst0.as_u8[offset] << shift; + qfi |= dst0.as_u8[offset + 1] >> (8 - shift); + if (gtpu_type == GTPU_TYPE_ECHO_REQUEST || gtpu_type == GTPU_TYPE_ECHO_REPLY || gtpu_type == GTPU_TYPE_ERROR_INDICATION) @@ -1356,24 +1358,21 @@ VLIB_NODE_FN (srv6_end_m_gtp6_e) (vlib_main_t * vm, sp = (u8 *) & seq; for (index = 0; index < 2; index++) { - sp[index] = dst0.as_u8[offset + index] << shift; + sp[index] = dst0.as_u8[offset + index + 1] << shift; sp[index] |= - dst0.as_u8[offset + index + 1] >> (8 - shift); + dst0.as_u8[offset + index + 2] >> (8 - shift); } } else { for (index = 0; index < 4; index++) { - *teid8p = dst0.as_u8[offset + index] << shift; + *teid8p = dst0.as_u8[offset + index + 1] << shift; *teid8p |= - dst0.as_u8[offset + index + 1] >> (8 - shift); + dst0.as_u8[offset + index + 2] >> (8 - shift); teid8p++; } } - - qfi |= dst0.as_u8[offset + 4] << shift; - qfi |= dst0.as_u8[offset + 5] >> (8 - shift); } if (qfi) @@ -1688,18 +1687,17 @@ VLIB_NODE_FN (srv6_end_m_gtp6_d) (vlib_main_t * vm, offset = ls_param->sr_prefixlen / 8; shift = ls_param->sr_prefixlen % 8; - offset += 1; if (PREDICT_TRUE (shift == 0)) { if (gtpu_type == GTPU_TYPE_ECHO_REQUEST || gtpu_type == GTPU_TYPE_ECHO_REPLY || gtpu_type == GTPU_TYPE_ERROR_INDICATION) { - clib_memcpy_fast (&seg0.as_u8[offset], seqp, 2); + clib_memcpy_fast (&seg0.as_u8[offset + 1], seqp, 2); } else { - clib_memcpy_fast (&seg0.as_u8[offset], teidp, 4); + clib_memcpy_fast (&seg0.as_u8[offset + 1], teidp, 4); } if (qfip) @@ -1713,7 +1711,7 @@ VLIB_NODE_FN (srv6_end_m_gtp6_d) (vlib_main_t * vm, qfi |= SRV6_PDU_SESSION_U_BIT_MASK; } - seg0.as_u8[offset + 4] = qfi; + seg0.as_u8[offset] = qfi; } } else @@ -1726,8 +1724,8 @@ VLIB_NODE_FN (srv6_end_m_gtp6_d) (vlib_main_t * vm, { for (idx = 0; idx < 2; idx++) { - seg0.as_u8[offset + idx] |= seqp[idx] >> shift; - seg0.as_u8[offset + idx + 1] |= + seg0.as_u8[offset + idx + 1] |= seqp[idx] >> shift; + seg0.as_u8[offset + idx + 2] |= seqp[idx] << (8 - shift); } } @@ -1735,8 +1733,8 @@ VLIB_NODE_FN (srv6_end_m_gtp6_d) (vlib_main_t * vm, { for (idx = 0; idx < 4; idx++) { - seg0.as_u8[offset + idx] |= teidp[idx] >> shift; - seg0.as_u8[offset + idx + 1] |= + seg0.as_u8[offset + idx + 1] |= teidp[idx] >> shift; + seg0.as_u8[offset + idx + 2] |= teidp[idx] << (8 - shift); } } @@ -1752,8 +1750,8 @@ VLIB_NODE_FN (srv6_end_m_gtp6_d) (vlib_main_t * vm, qfi |= SRV6_PDU_SESSION_U_BIT_MASK; } - seg0.as_u8[offset + 4] |= qfi >> shift; - seg0.as_u8[offset + 5] |= qfi << (8 - shift); + seg0.as_u8[offset] |= qfi >> shift; + seg0.as_u8[offset + 1] |= qfi << (8 - shift); } } @@ -2192,18 +2190,17 @@ VLIB_NODE_FN (srv6_end_m_gtp6_d_di) (vlib_main_t * vm, offset = ls_param->sr_prefixlen / 8; shift = ls_param->sr_prefixlen % 8; - offset += 1; if (PREDICT_TRUE (shift == 0)) { if (gtpu_type == GTPU_TYPE_ECHO_REQUEST || gtpu_type == GTPU_TYPE_ECHO_REPLY || gtpu_type == GTPU_TYPE_ERROR_INDICATION) { - clib_memcpy_fast (&seg0.as_u8[offset], seqp, 2); + clib_memcpy_fast (&seg0.as_u8[offset + 1], seqp, 2); } else { - clib_memcpy_fast (&seg0.as_u8[offset], teidp, 4); + clib_memcpy_fast (&seg0.as_u8[offset + 1], teidp, 4); } if (qfip) @@ -2217,7 +2214,7 @@ VLIB_NODE_FN (srv6_end_m_gtp6_d_di) (vlib_main_t * vm, qfi |= SRV6_PDU_SESSION_U_BIT_MASK; } - seg0.as_u8[offset + 4] = qfi; + seg0.as_u8[offset] = qfi; } } else @@ -2230,8 +2227,8 @@ VLIB_NODE_FN (srv6_end_m_gtp6_d_di) (vlib_main_t * vm, { for (idx = 0; idx < 2; idx++) { - seg0.as_u8[offset + idx] |= seqp[idx] >> shift; - seg0.as_u8[offset + idx + 1] |= + seg0.as_u8[offset + idx + 1] |= seqp[idx] >> shift; + seg0.as_u8[offset + idx + 2] |= seqp[idx] << (8 - shift); } } @@ -2239,8 +2236,8 @@ VLIB_NODE_FN (srv6_end_m_gtp6_d_di) (vlib_main_t * vm, { for (idx = 0; idx < 4; idx++) { - seg0.as_u8[offset + idx] |= teidp[idx] >> shift; - seg0.as_u8[offset + idx + 1] |= + seg0.as_u8[offset + idx + 1] |= teidp[idx] >> shift; + seg0.as_u8[offset + idx + 2] |= teidp[idx] << (8 - shift); } } @@ -2256,8 +2253,8 @@ VLIB_NODE_FN (srv6_end_m_gtp6_d_di) (vlib_main_t * vm, qfi |= SRV6_PDU_SESSION_U_BIT_MASK; } - seg0.as_u8[offset + 4] |= qfi >> shift; - seg0.as_u8[offset + 5] |= qfi << (8 - shift); + seg0.as_u8[offset] |= qfi >> shift; + seg0.as_u8[offset + 1] |= qfi << (8 - shift); } } diff --git a/src/plugins/srv6-mobile/test/test_srv6_mobile.py b/src/plugins/srv6-mobile/test/test_srv6_mobile.py index fb1abf98e0f..a695c9d7115 100644 --- a/src/plugins/srv6-mobile/test/test_srv6_mobile.py +++ b/src/plugins/srv6-mobile/test/test_srv6_mobile.py @@ -203,7 +203,7 @@ class TestSRv6EndMGTP6E(VppTestCase): raise def create_packets(self, inner): - # 64bit prefix + 32bit TEID + 8bit QFI + 24bit + # 64bit prefix + 8bit QFI + 32bit TEID + 24bit dst = b'\xaa' * 8 + b'\x00' + \ b'\xbb' * 4 + b'\x00' * 3 ip6_dst = IPv6Address(dst) -- cgit 1.2.3-korg