nftables-1.0.9-2.el9
This commit is contained in:
Phil Sutter
root
parent
0ba7f3d9b3
commit
c4705c7743
1
.nftables.metadata
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1
.nftables.metadata
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471b89f8332c8321a02d7e741d13ee5ded9aa185 nftables-1.0.9.tar.xz
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337
0001-Add-support-for-table-s-persist-flag.patch
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337
0001-Add-support-for-table-s-persist-flag.patch
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From 450520649ac5ac6f983b40e15e54863aab9d5bd7 Mon Sep 17 00:00:00 2001
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From: Phil Sutter <psutter@redhat.com>
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Date: Fri, 14 Jun 2024 18:30:55 +0200
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Subject: [PATCH] Add support for table's persist flag
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JIRA: https://issues.redhat.com/browse/RHEL-32122
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Upstream Status: nftables commit 4955ae1a81b73f9a61b7fbf1a73e11544513548e
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Conflicts:
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- Adjusted to missing commit ffd6b4790a728
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("src: add free_const() and use it instead of xfree()")
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commit 4955ae1a81b73f9a61b7fbf1a73e11544513548e
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Author: Phil Sutter <phil@nwl.cc>
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Date: Fri Dec 15 01:10:39 2023 +0100
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Add support for table's persist flag
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Bison parser lacked support for passing multiple flags, JSON parser
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did not support table flags at all.
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Document also 'owner' flag (and describe their relationship in nft.8.
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Signed-off-by: Phil Sutter <phil@nwl.cc>
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Signed-off-by: Phil Sutter <psutter@redhat.com>
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---
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doc/libnftables-json.adoc | 11 ++++-
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doc/nft.txt | 9 ++++
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include/rule.h | 4 +-
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src/parser_bison.y | 35 +++++++++------
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src/parser_json.c | 49 ++++++++++++++++++++-
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src/rule.c | 12 +++++
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tests/shell/features/table_flag_persist.nft | 3 ++
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tests/shell/testcases/owner/0002-persist | 36 +++++++++++++++
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8 files changed, 142 insertions(+), 17 deletions(-)
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create mode 100644 tests/shell/features/table_flag_persist.nft
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create mode 100755 tests/shell/testcases/owner/0002-persist
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diff --git a/doc/libnftables-json.adoc b/doc/libnftables-json.adoc
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index 3e6e1db..0e424c2 100644
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--- a/doc/libnftables-json.adoc
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+++ b/doc/libnftables-json.adoc
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@@ -202,12 +202,19 @@ Rename a chain. The new name is expected in a dedicated property named
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=== TABLE
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[verse]
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+____
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*{ "table": {
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"family":* 'STRING'*,
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"name":* 'STRING'*,
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- "handle":* 'NUMBER'
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+ "handle":* 'NUMBER'*,
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+ "flags":* 'TABLE_FLAGS'
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*}}*
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+'TABLE_FLAGS' := 'TABLE_FLAG' | *[* 'TABLE_FLAG_LIST' *]*
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+'TABLE_FLAG_LIST' := 'TABLE_FLAG' [*,* 'TABLE_FLAG_LIST' ]
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+'TABLE_FLAG' := *"dormant"* | *"owner"* | *"persist"*
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+____
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+
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This object describes a table.
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*family*::
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@@ -217,6 +224,8 @@ This object describes a table.
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*handle*::
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The table's handle. In input, it is used only in *delete* command as
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alternative to *name*.
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+*flags*::
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+ The table's flags.
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=== CHAIN
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[verse]
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diff --git a/doc/nft.txt b/doc/nft.txt
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index b08e32f..dba1b60 100644
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--- a/doc/nft.txt
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+++ b/doc/nft.txt
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@@ -343,8 +343,17 @@ return an error.
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|Flag | Description
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|dormant |
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table is not evaluated any more (base chains are unregistered).
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+|owner |
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+table is owned by the creating process.
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+|persist |
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+table shall outlive the owning process.
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|=================
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+Creating a table with flag *owner* excludes other processes from manipulating
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+it or its contents. By default, it will be removed when the process exits.
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+Setting flag *persist* will prevent this and the resulting orphaned table will
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+accept a new owner, e.g. a restarting daemon maintaining the table.
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+
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.*Add, change, delete a table*
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---------------------------------------
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# start nft in interactive mode
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diff --git a/include/rule.h b/include/rule.h
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index 6236d29..a8bb11f 100644
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--- a/include/rule.h
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+++ b/include/rule.h
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@@ -130,10 +130,12 @@ struct symbol *symbol_get(const struct scope *scope, const char *identifier);
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enum table_flags {
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TABLE_F_DORMANT = (1 << 0),
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TABLE_F_OWNER = (1 << 1),
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+ TABLE_F_PERSIST = (1 << 2),
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};
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-#define TABLE_FLAGS_MAX 2
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+#define TABLE_FLAGS_MAX 3
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const char *table_flag_name(uint32_t flag);
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+unsigned int parse_table_flag(const char *name);
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/**
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* struct table - nftables table
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diff --git a/src/parser_bison.y b/src/parser_bison.y
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index c517dc3..5ced6e1 100644
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--- a/src/parser_bison.y
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+++ b/src/parser_bison.y
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@@ -720,6 +720,8 @@ int nft_lex(void *, void *, void *);
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%type <rule> rule rule_alloc
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%destructor { rule_free($$); } rule
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+%type <val> table_flags table_flag
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+
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%type <val> set_flag_list set_flag
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%type <val> set_policy_spec
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@@ -1874,20 +1876,9 @@ table_block_alloc : /* empty */
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}
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;
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-table_options : FLAGS STRING
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+table_options : FLAGS table_flags
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{
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- if (strcmp($2, "dormant") == 0) {
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- $<table>0->flags |= TABLE_F_DORMANT;
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- xfree($2);
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- } else if (strcmp($2, "owner") == 0) {
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- $<table>0->flags |= TABLE_F_OWNER;
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- xfree($2);
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- } else {
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- erec_queue(error(&@2, "unknown table option %s", $2),
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- state->msgs);
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- xfree($2);
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- YYERROR;
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- }
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+ $<table>0->flags |= $2;
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}
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| comment_spec
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{
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@@ -1899,6 +1890,24 @@ table_options : FLAGS STRING
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}
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;
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+table_flags : table_flag
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+ | table_flags COMMA table_flag
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+ {
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+ $$ = $1 | $3;
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+ }
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+ ;
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+table_flag : STRING
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+ {
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+ $$ = parse_table_flag($1);
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+ xfree($1);
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+ if ($$ == 0) {
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+ erec_queue(error(&@1, "unknown table option %s", $1),
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+ state->msgs);
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+ YYERROR;
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+ }
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+ }
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+ ;
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+
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table_block : /* empty */ { $$ = $<table>-1; }
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| table_block common_block
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| table_block stmt_separator
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diff --git a/src/parser_json.c b/src/parser_json.c
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index 199241a..9e5b656 100644
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--- a/src/parser_json.c
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+++ b/src/parser_json.c
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@@ -2941,6 +2941,45 @@ static struct stmt *json_parse_stmt(struct json_ctx *ctx, json_t *root)
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return NULL;
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}
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+static int json_parse_table_flags(struct json_ctx *ctx, json_t *root,
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+ enum table_flags *flags)
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+{
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+ json_t *tmp, *tmp2;
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+ size_t index;
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+ int flag;
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+
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+ if (json_unpack(root, "{s:o}", "flags", &tmp))
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+ return 0;
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+
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+ if (json_is_string(tmp)) {
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+ flag = parse_table_flag(json_string_value(tmp));
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+ if (flag) {
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+ *flags = flag;
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+ return 0;
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+ }
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+ json_error(ctx, "Invalid table flag '%s'.",
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+ json_string_value(tmp));
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+ return 1;
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+ }
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+ if (!json_is_array(tmp)) {
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+ json_error(ctx, "Unexpected table flags value.");
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+ return 1;
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+ }
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+ json_array_foreach(tmp, index, tmp2) {
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+ if (json_is_string(tmp2)) {
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+ flag = parse_table_flag(json_string_value(tmp2));
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+
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+ if (flag) {
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+ *flags |= flag;
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+ continue;
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+ }
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+ }
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+ json_error(ctx, "Invalid table flag at index %zu.", index);
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+ return 1;
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+ }
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+ return 0;
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+}
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+
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static struct cmd *json_parse_cmd_add_table(struct json_ctx *ctx, json_t *root,
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enum cmd_ops op, enum cmd_obj obj)
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{
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@@ -2949,6 +2988,7 @@ static struct cmd *json_parse_cmd_add_table(struct json_ctx *ctx, json_t *root,
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.table.location = *int_loc,
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|
};
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struct table *table = NULL;
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+ enum table_flags flags = 0;
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|
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if (json_unpack_err(ctx, root, "{s:s}",
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"family", &family))
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|
@@ -2959,6 +2999,9 @@ static struct cmd *json_parse_cmd_add_table(struct json_ctx *ctx, json_t *root,
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|
return NULL;
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|
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|
json_unpack(root, "{s:s}", "comment", &comment);
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|
+ if (json_parse_table_flags(ctx, root, &flags))
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|
+ return NULL;
|
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|
+
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|
} else if (op == CMD_DELETE &&
|
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|
json_unpack(root, "{s:s}", "name", &h.table.name) &&
|
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|
json_unpack(root, "{s:I}", "handle", &h.handle.id)) {
|
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|
@@ -2972,10 +3015,12 @@ static struct cmd *json_parse_cmd_add_table(struct json_ctx *ctx, json_t *root,
|
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|
if (h.table.name)
|
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|
h.table.name = xstrdup(h.table.name);
|
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|
|
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|
- if (comment) {
|
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|
+ if (comment || flags) {
|
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|
table = table_alloc();
|
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|
handle_merge(&table->handle, &h);
|
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|
- table->comment = xstrdup(comment);
|
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|
+ if (comment)
|
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|
+ table->comment = xstrdup(comment);
|
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|
+ table->flags = flags;
|
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|
}
|
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|
|
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|
if (op == CMD_ADD)
|
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|
diff --git a/src/rule.c b/src/rule.c
|
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|
index 739b7a5..a0e151d 100644
|
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|
--- a/src/rule.c
|
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|
+++ b/src/rule.c
|
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|
@@ -1208,6 +1208,7 @@ struct table *table_lookup_fuzzy(const struct handle *h,
|
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|
static const char *table_flags_name[TABLE_FLAGS_MAX] = {
|
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|
"dormant",
|
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|
"owner",
|
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|
+ "persist",
|
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|
};
|
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|
|
||||||
|
const char *table_flag_name(uint32_t flag)
|
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|
@@ -1218,6 +1219,17 @@ const char *table_flag_name(uint32_t flag)
|
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|
return table_flags_name[flag];
|
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|
}
|
||||||
|
|
||||||
|
+unsigned int parse_table_flag(const char *name)
|
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|
+{
|
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|
+ int i;
|
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|
+
|
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|
+ for (i = 0; i < TABLE_FLAGS_MAX; i++) {
|
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|
+ if (!strcmp(name, table_flags_name[i]))
|
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|
+ return 1 << i;
|
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|
+ }
|
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|
+ return 0;
|
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|
+}
|
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|
+
|
||||||
|
static void table_print_flags(const struct table *table, const char **delim,
|
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|
struct output_ctx *octx)
|
||||||
|
{
|
||||||
|
diff --git a/tests/shell/features/table_flag_persist.nft b/tests/shell/features/table_flag_persist.nft
|
||||||
|
new file mode 100644
|
||||||
|
index 0000000..0da3e6d
|
||||||
|
--- /dev/null
|
||||||
|
+++ b/tests/shell/features/table_flag_persist.nft
|
||||||
|
@@ -0,0 +1,3 @@
|
||||||
|
+table t {
|
||||||
|
+ flags persist;
|
||||||
|
+}
|
||||||
|
diff --git a/tests/shell/testcases/owner/0002-persist b/tests/shell/testcases/owner/0002-persist
|
||||||
|
new file mode 100755
|
||||||
|
index 0000000..cf4b8f1
|
||||||
|
--- /dev/null
|
||||||
|
+++ b/tests/shell/testcases/owner/0002-persist
|
||||||
|
@@ -0,0 +1,36 @@
|
||||||
|
+#!/bin/bash
|
||||||
|
+
|
||||||
|
+# NFT_TEST_REQUIRES(NFT_TEST_HAVE_table_flag_owner)
|
||||||
|
+# NFT_TEST_REQUIRES(NFT_TEST_HAVE_table_flag_persist)
|
||||||
|
+
|
||||||
|
+die() {
|
||||||
|
+ echo "$@"
|
||||||
|
+ exit 1
|
||||||
|
+}
|
||||||
|
+
|
||||||
|
+$NFT -f - <<EOF
|
||||||
|
+table ip t {
|
||||||
|
+ flags owner, persist
|
||||||
|
+}
|
||||||
|
+EOF
|
||||||
|
+[[ $? -eq 0 ]] || {
|
||||||
|
+ die "table add failed"
|
||||||
|
+}
|
||||||
|
+
|
||||||
|
+$NFT list ruleset | grep -q 'table ip t' || {
|
||||||
|
+ die "table does not persist"
|
||||||
|
+}
|
||||||
|
+$NFT list ruleset | grep -q 'flags persist$' || {
|
||||||
|
+ die "unexpected flags in orphaned table"
|
||||||
|
+}
|
||||||
|
+
|
||||||
|
+$NFT -f - <<EOF
|
||||||
|
+table ip t {
|
||||||
|
+ flags owner, persist
|
||||||
|
+}
|
||||||
|
+EOF
|
||||||
|
+[[ $? -eq 0 ]] || {
|
||||||
|
+ die "retake ownership failed"
|
||||||
|
+}
|
||||||
|
+
|
||||||
|
+exit 0
|
||||||
@ -1,5 +1,5 @@
|
|||||||
%define nft_rpmversion 1.0.9
|
%define nft_rpmversion 1.0.9
|
||||||
%define nft_specrelease 1
|
%define nft_specrelease 2
|
||||||
|
|
||||||
Name: nftables
|
Name: nftables
|
||||||
Version: %{nft_rpmversion}
|
Version: %{nft_rpmversion}
|
||||||
@ -19,6 +19,7 @@ Source5: nat.nft
|
|||||||
Source6: nft-test.stderr.expect
|
Source6: nft-test.stderr.expect
|
||||||
Source7: run-tests.stderr.expect
|
Source7: run-tests.stderr.expect
|
||||||
|
|
||||||
|
Patch1: 0001-Add-support-for-table-s-persist-flag.patch
|
||||||
|
|
||||||
BuildRequires: autoconf
|
BuildRequires: autoconf
|
||||||
BuildRequires: automake
|
BuildRequires: automake
|
||||||
@ -131,6 +132,9 @@ cd py/
|
|||||||
%files -n python3-nftables -f %{pyproject_files}
|
%files -n python3-nftables -f %{pyproject_files}
|
||||||
|
|
||||||
%changelog
|
%changelog
|
||||||
|
* Fri Jun 14 2024 Phil Sutter <psutter@redhat.com> [1.0.9-2.el9]
|
||||||
|
- Add support for table's persist flag (Phil Sutter) [RHEL-32122]
|
||||||
|
|
||||||
* Fri Oct 27 2023 Phil Sutter <psutter@redhat.com> [1.0.9-1.el9]
|
* Fri Oct 27 2023 Phil Sutter <psutter@redhat.com> [1.0.9-1.el9]
|
||||||
- spec: Utilize pyproject-rpm-macros for the python sub-package (Phil Sutter) [RHEL-14191]
|
- spec: Utilize pyproject-rpm-macros for the python sub-package (Phil Sutter) [RHEL-14191]
|
||||||
- Rebase onto version 1.0.9 (Phil Sutter) [RHEL-14191]
|
- Rebase onto version 1.0.9 (Phil Sutter) [RHEL-14191]
|
||||||
|
|||||||
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Reference in New Issue
Block a user