projects / mirror_ubuntu-bionic-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| f6d0cbcf FW |
1 | /* |
| 2 | * This program is free software; you can redistribute it and/or modify | |
| 3 | * it under the terms of the GNU General Public License version 2 as | |
| 4 | * published by the Free Software Foundation. | |
| 5 | */ | |
| 6 | ||
| 7 | #include <linux/kernel.h> | |
| 8 | #include <linux/init.h> | |
| 9 | #include <linux/module.h> | |
| 10 | #include <linux/netlink.h> | |
| 11 | #include <linux/netfilter.h> | |
| 12 | #include <linux/netfilter/nf_tables.h> | |
| 13 | #include <net/netfilter/nf_tables_core.h> | |
| 14 | #include <net/netfilter/nf_tables.h> | |
| 15 | ||
| 16 | #include <net/netfilter/nft_fib.h> | |
| 17 | ||
| 18 | static void nft_fib_inet_eval(const struct nft_expr *expr, | |
| 19 | struct nft_regs *regs, | |
| 20 | const struct nft_pktinfo *pkt) | |
| 21 | { | |
| 22 | const struct nft_fib *priv = nft_expr_priv(expr); | |
| 23 | ||
| 0e5a1c7e | 24 | switch (nft_pf(pkt)) { |
| f6d0cbcf FW |
25 | case NFPROTO_IPV4: |
| 26 | switch (priv->result) { | |
| 27 | case NFT_FIB_RESULT_OIF: | |
| 28 | case NFT_FIB_RESULT_OIFNAME: | |
| 29 | return nft_fib4_eval(expr, regs, pkt); | |
| 30 | case NFT_FIB_RESULT_ADDRTYPE: | |
| 31 | return nft_fib4_eval_type(expr, regs, pkt); | |
| 32 | } | |
| 33 | break; | |
| 34 | case NFPROTO_IPV6: | |
| 35 | switch (priv->result) { | |
| 36 | case NFT_FIB_RESULT_OIF: | |
| 37 | case NFT_FIB_RESULT_OIFNAME: | |
| 38 | return nft_fib6_eval(expr, regs, pkt); | |
| 39 | case NFT_FIB_RESULT_ADDRTYPE: | |
| 40 | return nft_fib6_eval_type(expr, regs, pkt); | |
| 41 | } | |
| 42 | break; | |
| 43 | } | |
| 44 | ||
| 45 | regs->verdict.code = NF_DROP; | |
| 46 | } | |
| 47 | ||
| 48 | static struct nft_expr_type nft_fib_inet_type; | |
| 49 | static const struct nft_expr_ops nft_fib_inet_ops = { | |
| 50 | .type = &nft_fib_inet_type, | |
| 51 | .size = NFT_EXPR_SIZE(sizeof(struct nft_fib)), | |
| 52 | .eval = nft_fib_inet_eval, | |
| 53 | .init = nft_fib_init, | |
| 54 | .dump = nft_fib_dump, | |
| 55 | .validate = nft_fib_validate, | |
| 56 | }; | |
| 57 | ||
| 58 | static struct nft_expr_type nft_fib_inet_type __read_mostly = { | |
| 59 | .family = NFPROTO_INET, | |
| 60 | .name = "fib", | |
| 61 | .ops = &nft_fib_inet_ops, | |
| 62 | .policy = nft_fib_policy, | |
| 63 | .maxattr = NFTA_FIB_MAX, | |
| 64 | .owner = THIS_MODULE, | |
| 65 | }; | |
| 66 | ||
| 67 | static int __init nft_fib_inet_module_init(void) | |
| 68 | { | |
| 69 | return nft_register_expr(&nft_fib_inet_type); | |
| 70 | } | |
| 71 | ||
| 72 | static void __exit nft_fib_inet_module_exit(void) | |
| 73 | { | |
| 74 | nft_unregister_expr(&nft_fib_inet_type); | |
| 75 | } | |
| 76 | ||
| 77 | module_init(nft_fib_inet_module_init); | |
| 78 | module_exit(nft_fib_inet_module_exit); | |
| 79 | ||
| 80 | MODULE_LICENSE("GPL"); | |
| 81 | MODULE_AUTHOR("Florian Westphal <fw@strlen.de>"); | |
| 82 | MODULE_ALIAS_NFT_AF_EXPR(1, "fib"); |