| Commit message (Collapse) | Author | Age | Files | Lines |
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This patch permits to save matches and target for ip/ip6/arp/eb
family, required for xtables-events.
Also, generalizes nft_rule_print_save to be reused for all protocol
families.
Signed-off-by: Giuseppe Longo <giuseppelng@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Adapt the current code to use the new library name libnftnl.
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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The MASQUERADE target relies on the ipt_entry information that is
set in ->post_parse, which is too late.
Add a new hook called ->pre_parse, that sets the protocol
information accordingly.
Thus:
xtables -4 -A POSTROUTING -t nat -p tcp \
-j MASQUERADE --to-ports 1024
works again.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Fixes a segfault issue when deleting a rule.
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This patch kills nft_arp_rule_find, which is almost a copy and paste
of the original nft_rule_find function. Refactor this function to
move specific protocol parts to the corresponding nft-{ipv4,ipv6,arp}.c
files.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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The following patch implements the is_same operation
for ARP family needed for searching arp rule.
Signed-off-by: Giuseppe Longo <giuseppelng@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This patch bootstraps ARP support for the compatibility layer:
1) copy original arptables code into xtables-arp.c
2) adapt it to fit into the existing nft infrastructure.
3) add the builtin table/chains for ARP.
4) add necessary parts so xtables-multi can provide xtables-arp.
5) add basic support for rule addition (-A), insertion (-I) and
listing (-L).
[ This was originally posted in a series of patches with interdependencies
that I have collapsed to leave the repository in consistent state. This
patch includes the following changes I made:
* Rename from xtables-arptables to xtables-arp, previous name too long.
* Remove nft-arptables.c, now we have one single nft-arp.c file. Moved
specific ARP functions to nft.c. Those should go away at some point as
some refactorization should allow to accomodate those functions to the
existing infrastructure.
* Fix --opcode Request/Reply, so we can do something useful with this
like dropping ARP request/replies.
--pablo ]
Signed-off-by: Giuseppe Longo <giuseppelng@gmail.com>
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This should help Giuseppe with his ARP support works, this change
was missing in (618309c nft: refactoring parse operations for more
genericity).
Based on patch from Giuseppe.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This allows to reuse the nft_parse_* function for the bridge and
arp family (not yet supported).
Signed-off-by: Giuseppe Longo <giuseppelng@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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So we can kill our own implementation.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Unfortunately, IPT_F_* and IP6T_F_* don't overlap, therefore, we have
to add an specific function to print the fragment flag, otherwise
xtables -6 misinterprets the protocol flag, ie.
Chain INPUT (policy ACCEPT)
tcp -f ::/0 ::/0
Note that -f should not show up. This problem was likely added with
the IPv6 support for the compatibility layer.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This helps to reduce the code complexity to have one single common path
for printing, saving and looking up for the rule.
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Now, firewall rule printing is done through nft_family_ops
.print_firewall function. This moves generic part for ipv4 and ipv6 into
nft-shared.c, and enables reusing nft_rule_list() for other family such
as ARP which will be useful for arptables compatibility tool.
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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The protocol field in both IPv4 and IPv6 headers are 8 bits long,
so we have to compare 8 bits.
Reported-by: Giuseppe Longo <giuseppelng@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Move specific layer 3 protocol post argument parsing code
to the respective nft-ipv[4|6].c files.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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xtables -I INPUT -p tcp --dport 22 -j ACCEPT
iptables: Target problem. Run `dmesg' for more information
x_tables: ip_tables: tcp match: only valid for protocol
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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No tradition in the project to include the header file in .h file.
This one is also internal - not exported.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This makes nft core code independant from the family. Each family needs
to implement and provide a struct nft_family_ops {}.
This split will ease the future support of bridge and arp rules manipulations.
[ updated header files and rebased upon the current tree --pablo ]
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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