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Northd changes to put port range hash in the logical flow based on configuration. b. Changes to parse the logical flow, which specifies port_range_hash along with port_range for ct_nat action. Example logical flow: ct_snat(10.15.24.135,1-30000, hash) Signed-off-by: Ankur Sharma --- include/ovn/actions.h | 1 + lib/actions.c | 51 +++++++++++++++++++++++++++++++++++++-- northd/ovn-northd.c | 16 +++++++++++++ tests/ovn-northd.at | 31 ++++++++++++++++++++++++ tests/ovn.at | 66 ++++++++++++++++++++++++++++++++++++++++++++------- 5 files changed, 155 insertions(+), 10 deletions(-) diff --git a/include/ovn/actions.h b/include/ovn/actions.h index 636cb4b..101cd7a 100644 --- a/include/ovn/actions.h +++ b/include/ovn/actions.h @@ -235,6 +235,7 @@ struct ovnact_ct_nat { bool exists; uint16_t port_lo; uint16_t port_hi; + char *port_hash; } port_range; uint8_t ltable; /* Logical table ID of next table. */ diff --git a/lib/actions.c b/lib/actions.c index 5fe0a38..c8e0767 100644 --- a/lib/actions.c +++ b/lib/actions.c @@ -707,6 +707,8 @@ parse_ct_nat(struct action_context *ctx, const char *name, if (lexer_match(ctx->lexer, LEX_T_COMMA)) { + cn->port_range.port_hash = NULL; + if (ctx->lexer->token.type != LEX_T_INTEGER || ctx->lexer->token.format != LEX_F_DECIMAL) { lexer_syntax_error(ctx->lexer, "expecting Integer for port " @@ -733,8 +735,40 @@ parse_ct_nat(struct action_context *ctx, const char *name, "greater than range low"); } lexer_get(ctx->lexer); + + if (lexer_match(ctx->lexer, LEX_T_COMMA)) { + if (ctx->lexer->token.type != LEX_T_ID) { + lexer_syntax_error(ctx->lexer, "expecting string for " + "port hash"); + } + + if (strcmp(ctx->lexer->token.s, "hash") && + strcmp(ctx->lexer->token.s, "random")) { + lexer_syntax_error(ctx->lexer, "Invalid value for " + "port hash"); + } + + cn->port_range.port_hash = xstrdup(ctx->lexer->token.s); + lexer_get(ctx->lexer); + } } else { cn->port_range.port_hi = 0; + + if (lexer_match(ctx->lexer, LEX_T_COMMA)) { + if (ctx->lexer->token.type != LEX_T_ID) { + lexer_syntax_error(ctx->lexer, "expecting string for " + "port hash"); + } + + if (strcmp(ctx->lexer->token.s, "hash") && + strcmp(ctx->lexer->token.s, "random")) { + lexer_syntax_error(ctx->lexer, "Invalid value for " + "port hash"); + } + + cn->port_range.port_hash = xstrdup(ctx->lexer->token.s); + lexer_get(ctx->lexer); + } } cn->port_range.exists = true; @@ -777,6 +811,10 @@ format_ct_nat(const struct ovnact_ct_nat *cn, const char *name, struct ds *s) if (cn->port_range.port_hi) { ds_put_format(s, "-%d", cn->port_range.port_hi); } + + if (cn->port_range.port_hash) { + ds_put_format(s, ",%s", cn->port_range.port_hash); + } ds_put_char(s, ')'); } @@ -843,8 +881,17 @@ encode_ct_nat(const struct ovnact_ct_nat *cn, } if (cn->port_range.exists) { - nat->range.proto.min = cn->port_range.port_lo; - nat->range.proto.max = cn->port_range.port_hi; + const char *port_hash = cn->port_range.port_hash; + nat->range.proto.min = cn->port_range.port_lo; + nat->range.proto.max = cn->port_range.port_hi; + + if (port_hash) { + if (!strcmp(port_hash, "hash")) { + nat->flags |= NX_NAT_F_PROTO_HASH; + } else { + nat->flags |= NX_NAT_F_PROTO_RANDOM; + } + } } ofpacts->header = ofpbuf_push_uninit(ofpacts, nat_offset); diff --git a/northd/ovn-northd.c b/northd/ovn-northd.c index bebb25a..55a415a 100644 --- a/northd/ovn-northd.c +++ b/northd/ovn-northd.c @@ -9596,6 +9596,10 @@ build_lrouter_flows(struct hmap *datapaths, struct hmap *ports, if (nat->external_port_range[0]) { ds_put_format(&actions, ",%s", nat->external_port_range); + if (nat->external_port_hash[0]) { + ds_put_format(&actions, ",%s", + nat->external_port_hash); + } } ds_put_format(&actions, ");"); } @@ -9633,6 +9637,10 @@ build_lrouter_flows(struct hmap *datapaths, struct hmap *ports, if (nat->external_port_range[0]) { ds_put_format(&actions, ",%s", nat->external_port_range); + if (nat->external_port_hash[0]) { + ds_put_format(&actions, ",%s", + nat->external_port_hash); + } } ds_put_format(&actions, ");"); } @@ -9750,6 +9758,10 @@ build_lrouter_flows(struct hmap *datapaths, struct hmap *ports, if (nat->external_port_range[0]) { ds_put_format(&actions, ",%s", nat->external_port_range); + if (nat->external_port_hash[0]) { + ds_put_format(&actions, ",%s", + nat->external_port_hash); + } } ds_put_format(&actions, ");"); } @@ -9799,6 +9811,10 @@ build_lrouter_flows(struct hmap *datapaths, struct hmap *ports, if (nat->external_port_range[0]) { ds_put_format(&actions, ",%s", nat->external_port_range); + if (nat->external_port_hash[0]) { + ds_put_format(&actions, ",%s", + nat->external_port_hash); + } } ds_put_format(&actions, ");"); } diff --git a/tests/ovn-northd.at b/tests/ovn-northd.at index c6d9ae11..88cfaeb 100644 --- a/tests/ovn-northd.at +++ b/tests/ovn-northd.at @@ -1991,3 +1991,34 @@ AT_CHECK([ovn-sbctl lflow-list | grep "ls_out_pre_lb.*priority=100" | grep reg0 ]) AT_CLEANUP + +AT_SETUP([ovn -- Port Range and Hash in NAT entries]) +AT_SKIP_IF([test $HAVE_PYTHON = no]) +ovn_start + +ovn-nbctl lr-add lr0 +ovn-nbctl lrp-add lr0 lr0-public 00:00:01:01:02:04 192.168.2.1/24 +ovn-nbctl lrp-add lr0 lr0-join 00:00:01:01:02:04 10.10.0.1/24 + +ovn-nbctl set logical_router lr0 options:chassis=ch1 + +ovn-nbctl --portrange lr-nat-add lr0 snat 192.168.2.1 10.0.0.0/24 1-1000 hash +ovn-nbctl --portrange lr-nat-add lr0 dnat_and_snat 192.168.2.4 10.0.0.4 1100-2000 random +ovn-nbctl --portrange lr-nat-add lr0 dnat 192.168.2.5 10.0.0.5 2100-3000 + +ovn-sbctl dump-flows lr0 + +AT_CHECK([ovn-sbctl dump-flows lr0 | grep lr_out_snat | \ +grep "ct_snat(192.168.2.1,1-1000,hash)" | wc -l], [0], [1 +]) +AT_CHECK([ovn-sbctl dump-flows lr0 | grep lr_in_dnat | \ +grep "ct_dnat(10.0.0.4,1100-2000,random)" | wc -l], [0], [1 +]) +AT_CHECK([ovn-sbctl dump-flows lr0 | grep lr_out_snat | \ +grep "ct_snat(192.168.2.4,1100-2000,random)" | wc -l], [0], [1 +]) +AT_CHECK([ovn-sbctl dump-flows lr0 | grep lr_in_dnat | \ +grep "ct_dnat(10.0.0.5,2100-3000)" | wc -l], [0], [1 +]) + +AT_CLEANUP diff --git a/tests/ovn.at b/tests/ovn.at index 1fe34b7..e846104 100644 --- a/tests/ovn.at +++ b/tests/ovn.at @@ -1123,6 +1123,22 @@ ct_dnat(192.168.1.2, 1-3000); formats as ct_dnat(192.168.1.2,1-3000); encodes as ct(commit,table=19,zone=NXM_NX_REG11[0..15],nat(dst=192.168.1.2:1-3000)) has prereqs ip +ct_dnat(192.168.1.2, 1000); + formats as ct_dnat(192.168.1.2,1000); + encodes as ct(commit,table=19,zone=NXM_NX_REG11[0..15],nat(dst=192.168.1.2:1000)) + has prereqs ip +ct_dnat(192.168.1.2, 1-3000, hash); + formats as ct_dnat(192.168.1.2,1-3000,hash); + encodes as ct(commit,table=19,zone=NXM_NX_REG11[0..15],nat(dst=192.168.1.2:1-3000,hash)) + has prereqs ip +ct_dnat(192.168.1.2, 1-3000, random); + formats as ct_dnat(192.168.1.2,1-3000,random); + encodes as ct(commit,table=19,zone=NXM_NX_REG11[0..15],nat(dst=192.168.1.2:1-3000,random)) + has prereqs ip +ct_dnat(192.168.1.2, 1000, hash); + formats as ct_dnat(192.168.1.2,1000,hash); + encodes as ct(commit,table=19,zone=NXM_NX_REG11[0..15],nat(dst=192.168.1.2:1000,hash)) + has prereqs ip ct_dnat(192.168.1.2, 192.168.1.3); Syntax error at `192.168.1.3' expecting Integer for port range. @@ -1136,12 +1152,20 @@ ct_dnat(192.168.1.2, foo); Syntax error at `foo' expecting Integer for port range. ct_dnat(192.168.1.2, 1000-foo); Syntax error at `foo' expecting Integer for port range. -ct_dnat(192.168.1.2, 1000); - formats as ct_dnat(192.168.1.2,1000); - encodes as ct(commit,table=19,zone=NXM_NX_REG11[0..15],nat(dst=192.168.1.2:1000)) - has prereqs ip ct_dnat(192.168.1.2, 1000-100); Syntax error at `100' range high should be greater than range low. +ct_dnat(192.168.1.2, hash); + Syntax error at `hash' expecting Integer for port range. +ct_dnat(192.168.1.2, random); + Syntax error at `random' expecting Integer for port range. +ct_dnat(192.168.1.2, 192.168.1.3, hash); + Syntax error at `192.168.1.3' expecting Integer for port range. +ct_dnat(192.168.1.2, foo, hash); + Syntax error at `foo' expecting Integer for port range. +ct_dnat(192.168.1.2, 1000-foo, hash); + Syntax error at `foo' expecting Integer for port range. +ct_dnat(192.168.1.2, 1000-100, hash); + Syntax error at `100' range high should be greater than range low. # ct_snat ct_snat; @@ -1157,6 +1181,22 @@ ct_snat(192.168.1.2, 1-3000); formats as ct_snat(192.168.1.2,1-3000); encodes as ct(commit,table=19,zone=NXM_NX_REG12[0..15],nat(src=192.168.1.2:1-3000)) has prereqs ip +ct_snat(192.168.1.2, 1000); + formats as ct_snat(192.168.1.2,1000); + encodes as ct(commit,table=19,zone=NXM_NX_REG12[0..15],nat(src=192.168.1.2:1000)) + has prereqs ip +ct_snat(192.168.1.2, 1-3000, hash); + formats as ct_snat(192.168.1.2,1-3000,hash); + encodes as ct(commit,table=19,zone=NXM_NX_REG12[0..15],nat(src=192.168.1.2:1-3000,hash)) + has prereqs ip +ct_snat(192.168.1.2, 1-3000, random); + formats as ct_snat(192.168.1.2,1-3000,random); + encodes as ct(commit,table=19,zone=NXM_NX_REG12[0..15],nat(src=192.168.1.2:1-3000,random)) + has prereqs ip +ct_snat(192.168.1.2, 1000, hash); + formats as ct_snat(192.168.1.2,1000,hash); + encodes as ct(commit,table=19,zone=NXM_NX_REG12[0..15],nat(src=192.168.1.2:1000,hash)) + has prereqs ip ct_snat(192.168.1.2, 192.168.1.3); Syntax error at `192.168.1.3' expecting Integer for port range. @@ -1170,12 +1210,22 @@ ct_snat(192.168.1.2, foo); Syntax error at `foo' expecting Integer for port range. ct_snat(192.168.1.2, 1000-foo); Syntax error at `foo' expecting Integer for port range. -ct_snat(192.168.1.2, 1000); - formats as ct_snat(192.168.1.2,1000); - encodes as ct(commit,table=19,zone=NXM_NX_REG12[0..15],nat(src=192.168.1.2:1000)) - has prereqs ip ct_snat(192.168.1.2, 1000-100); Syntax error at `100' range high should be greater than range low. +ct_snat(192.168.1.2, hash); + Syntax error at `hash' expecting Integer for port range. +ct_snat(192.168.1.2, random); + Syntax error at `random' expecting Integer for port range. +ct_snat(192.168.1.2, 192.168.1.3, hash); + Syntax error at `192.168.1.3' expecting Integer for port range. +ct_snat(192.168.1.2, foo, hash); + Syntax error at `foo' expecting Integer for port range. +ct_snat(192.168.1.2, 1000-foo, hash); + Syntax error at `foo' expecting Integer for port range. +ct_snat(192.168.1.2, 1000-100, hash); + Syntax error at `100' range high should be greater than range low. + + # ct_clear ct_clear; encodes as ct_clear