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/fd.c |
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/fd.c')
-rw-r--r-- | src/fd.c | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/src/fd.c b/src/fd.c new file mode 100644 index 0000000..46b443a --- /dev/null +++ b/src/fd.c @@ -0,0 +1,57 @@ +/* + * (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 <stdlib.h> +#include <event.h> +#include <stdint.h> +#include <fd.h> + +static void nft_fd_cb(int _fd, short mask, void *data) +{ + struct nft_fd *nfd = data; + + nfd->cb(nfd, mask); +} + +void nft_fd_setup(struct nft_fd *nfd, int fd, + void (*cb)(struct nft_fd *fd, uint32_t mask), void *data) +{ + /* add assertion */ + + nfd->fd = fd; + nfd->cb = cb; + nfd->data = data; +} + +void nft_fd_register(struct nft_fd *nfd, uint32_t events) +{ + unsigned short mask = events; + + /* add assertion */ + + event_set(&nfd->event, nfd->fd, mask, nft_fd_cb, nfd); + event_add(&nfd->event, NULL); +} + +void nft_fd_unregister(struct nft_fd *fd) +{ + /* add assertion */ + event_del(&fd->event); + fd->fd = -1; +} + +struct nft_fd *nft_fd_alloc(void) +{ + return calloc(1, sizeof(struct nft_fd)); +} + +void nft_fd_free(struct nft_fd *nfd) +{ + free(nfd); +} |