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https://git.netfilter.org/libnftnl
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823a26e955
Prepare for storing data reg byteorder, no functional change intended. Note the odd case in expr/byteorder.c since there is a local variable with same name already. Signed-off-by: Phil Sutter <phil@nwl.cc>
34 lines
897 B
C
34 lines
897 B
C
#ifndef _EXPR_OPS_H_
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#define _EXPR_OPS_H_
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#include <stdint.h>
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#include "internal.h"
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struct nlattr;
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struct nlmsghdr;
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struct nftnl_expr;
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struct attr_policy {
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uint32_t maxlen;
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};
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struct expr_ops {
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const char *name;
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uint32_t alloc_len;
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int nftnl_max_attr;
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struct attr_policy *attr_policy;
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void (*init)(const struct nftnl_expr *e);
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void (*free)(const struct nftnl_expr *e);
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int (*set)(struct nftnl_expr *e, uint16_t type, const void *data, uint32_t data_len, uint32_t byteorder);
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const void *(*get)(const struct nftnl_expr *e, uint16_t type, uint32_t *data_len);
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int (*parse)(struct nftnl_expr *e, struct nlattr *attr);
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void (*build)(struct nlmsghdr *nlh, const struct nftnl_expr *e);
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int (*output)(char *buf, size_t len, uint32_t flags, const struct nftnl_expr *e);
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};
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struct expr_ops *nftnl_expr_ops_lookup(const char *name);
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#define nftnl_expr_data(ops) (void *)ops->data
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#endif
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