diff options
author | Pablo Neira Ayuso <pablo@netfilter.org> | 2014-04-27 15:04:07 +0200 |
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committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2014-05-02 18:31:13 +0200 |
commit | c179ee88d91a84fc75dc4602cca500e8fa72ed66 (patch) | |
tree | b6b149622e02c81265a673145d6b9a260776f799 /src/config-scanner.l |
initial commit
This patch bootstrap the new nft-sync software. Basically, this
software aims to support two different setups:
1) Rule-set repository server. The software serves the nft rule-set to
clients that request the ruleset.
Basically from the system that acts as repository, you have to run:
# nft-sync -c ../contrib/nft-sync.conf.server
Then, from the client:
# nft-sync -c ../contrib/nft-sync.conf.client --fetch
Which displays the nft rule-set in the standard output, so you
can inspect the nft rule-set.
Alternatively, the client can also retrieve and apply the nft
rule-set using the pull command instead:
# nft-sync -c ../contrib/nft-sync.conf.client --pull
[ Note that this command above does not work in this bootstrap yet ]
2) Rule-set synchronization: In case of primary-backup and multiprimary
firewall configurations, the software makes sure that the firewall
cluster is deploying the same filtering policy. In this case, you have
to launch the process:
# nft-sync -c ../contrib/nft-sync.conf --sync
[ Note that this command above does not work in this bootstrap yet ]
This bootstrap provides the basic infrastructure as a proof-of-concept.
Many of the necessary features are still lacking:
* Implement --sync and --pull commands.
* Interaction with nft through libnftnl, which allows the software to
retrieve the local nft rule-set, as well as to parse it and apply it.
* SSL support, specifically the repository mode needs it to make sure
nobody can steal your filtering policy from the network.
* IPv6 support.
* Allow to serve different rule-sets in the repository mode.
And many others that will be added progressively.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'src/config-scanner.l')
-rw-r--r-- | src/config-scanner.l | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/src/config-scanner.l b/src/config-scanner.l new file mode 100644 index 0000000..d3ad91e --- /dev/null +++ b/src/config-scanner.l @@ -0,0 +1,51 @@ +%{ +/* + * (C) 2014 by Pablo Neira Ayuso <pablo@netfilter.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation; either version 3 of the License, or + * (at your option) any later version. + */ + +#include <string.h> +#include "config-parser.h" +%} + +%option yylineno +%option noinput +%option nounput + +ws [ \t]+ +comment #.*$ +nl [\n\r] + +is_on [o|O][n|N] +is_off [o|O][f|F][f|F] +integer [\-\+]?[0-9]+ +string [a-zA-Z0-9][a-zA-Z0-9\.\-\_\/\:]* + +%% +"local-address" { return T_LOCAL_ADDR; } +"remote-address" { return T_REMOTE_ADDR; } +"logging" { return T_LOG; } +"mode" { return T_MODE; } + +{integer} { yylval.val = atoi(yytext); return T_INTEGER; } +{string} { yylval.string = strdup(yytext); return T_STRING; } + +{comment} ; +{ws} ; +{nl} ; + +<<EOF>> { yyterminate(); } + +. { return yytext[0]; } + +%% + +int +yywrap() +{ + return 1; +} |