diff options
Diffstat (limited to 'src/expr/fwd.c')
| -rw-r--r-- | src/expr/fwd.c | 49 |
1 files changed, 18 insertions, 31 deletions
diff --git a/src/expr/fwd.c b/src/expr/fwd.c index 2ec63c1..5f6a56c 100644 --- a/src/expr/fwd.c +++ b/src/expr/fwd.c @@ -1,10 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * (C) 2015 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 General Public License as published - * by the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. */ #include <stdio.h> @@ -26,23 +22,22 @@ struct nftnl_expr_fwd { uint32_t nfproto; }; -static int nftnl_expr_fwd_set(struct nftnl_expr *e, uint16_t type, - const void *data, uint32_t data_len) +static int +nftnl_expr_fwd_set(struct nftnl_expr *e, uint16_t type, + const void *data, uint32_t data_len, uint32_t byteorder) { struct nftnl_expr_fwd *fwd = nftnl_expr_data(e); switch (type) { case NFTNL_EXPR_FWD_SREG_DEV: - memcpy(&fwd->sreg_dev, data, sizeof(fwd->sreg_dev)); + memcpy(&fwd->sreg_dev, data, data_len); break; case NFTNL_EXPR_FWD_SREG_ADDR: - memcpy(&fwd->sreg_addr, data, sizeof(fwd->sreg_addr)); + memcpy(&fwd->sreg_addr, data, data_len); break; case NFTNL_EXPR_FWD_NFPROTO: - memcpy(&fwd->nfproto, data, sizeof(fwd->nfproto)); + memcpy(&fwd->nfproto, data, data_len); break; - default: - return -1; } return 0; } @@ -125,12 +120,11 @@ static int nftnl_expr_fwd_parse(struct nftnl_expr *e, struct nlattr *attr) return ret; } -static int nftnl_expr_fwd_snprintf_default(char *buf, size_t len, - const struct nftnl_expr *e, - uint32_t flags) +static int nftnl_expr_fwd_snprintf(char *buf, size_t remain, + uint32_t flags, const struct nftnl_expr *e) { - int remain = len, offset = 0, ret; struct nftnl_expr_fwd *fwd = nftnl_expr_data(e); + int offset = 0, ret; if (e->flags & (1 << NFTNL_EXPR_FWD_SREG_DEV)) { ret = snprintf(buf + offset, remain, "sreg_dev %u ", @@ -151,27 +145,20 @@ static int nftnl_expr_fwd_snprintf_default(char *buf, size_t len, return offset; } -static int nftnl_expr_fwd_snprintf(char *buf, size_t len, uint32_t type, - uint32_t flags, const struct nftnl_expr *e) -{ - switch (type) { - case NFTNL_OUTPUT_DEFAULT: - return nftnl_expr_fwd_snprintf_default(buf, len, e, flags); - case NFTNL_OUTPUT_XML: - case NFTNL_OUTPUT_JSON: - default: - break; - } - return -1; -} +static struct attr_policy fwd_attr_policy[__NFTNL_EXPR_FWD_MAX] = { + [NFTNL_EXPR_FWD_SREG_DEV] = { .maxlen = sizeof(uint32_t) }, + [NFTNL_EXPR_FWD_SREG_ADDR] = { .maxlen = sizeof(uint32_t) }, + [NFTNL_EXPR_FWD_NFPROTO] = { .maxlen = sizeof(uint32_t) }, +}; struct expr_ops expr_ops_fwd = { .name = "fwd", .alloc_len = sizeof(struct nftnl_expr_fwd), - .max_attr = NFTA_FWD_MAX, + .nftnl_max_attr = __NFTNL_EXPR_FWD_MAX - 1, + .attr_policy = fwd_attr_policy, .set = nftnl_expr_fwd_set, .get = nftnl_expr_fwd_get, .parse = nftnl_expr_fwd_parse, .build = nftnl_expr_fwd_build, - .snprintf = nftnl_expr_fwd_snprintf, + .output = nftnl_expr_fwd_snprintf, }; |