8a3efffa5b
In order for the interface to become more thread safe, the error
handling was revised to no longer depend on a static errno and
error string buffer.
This patch converts all error paths to return a libnl specific
error code which can be translated to a error message using
nl_geterror(int error). The functions nl_error() and
nl_get_errno() are therefore obsolete.
This change required various sets of function prototypes to be
changed in order to return an error code, the most prominent
are:
struct nl_cache *foo_alloc_cache(...);
changed to:
int foo_alloc_cache(..., struct nl_cache **);
struct nl_msg *foo_build_request(...);
changed to:
int foo_build_request(..., struct nl_msg **);
struct foo *foo_parse(...);
changed to:
int foo_parse(..., struct foo **);
This pretty much only leaves trivial allocation functions to
still return a pointer object which can still return NULL to
signal out of memory.
This change is a serious API and ABI breaker, sorry!
70 lines
2.1 KiB
C
70 lines
2.1 KiB
C
/*
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* netlink-tc.h Local Traffic Control Interface
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation version 2.1
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* of the License.
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*
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* Copyright (c) 2003-2008 Thomas Graf <tgraf@suug.ch>
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*/
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#ifndef NETLINK_TC_PRIV_H_
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#define NETLINK_TC_PRIV_H_
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#include <netlink-local.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define TCA_ATTR_HANDLE 0x001
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#define TCA_ATTR_PARENT 0x002
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#define TCA_ATTR_IFINDEX 0x004
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#define TCA_ATTR_KIND 0x008
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#define TCA_ATTR_FAMILY 0x010
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#define TCA_ATTR_INFO 0x020
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#define TCA_ATTR_OPTS 0x040
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#define TCA_ATTR_STATS 0x080
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#define TCA_ATTR_XSTATS 0x100
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#define TCA_ATTR_MAX TCA_ATTR_XSTATS
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extern int tca_parse(struct nlattr **, int, struct rtnl_tca *,
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struct nla_policy *);
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extern int tca_msg_parser(struct nlmsghdr *, struct rtnl_tca *);
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extern void tca_free_data(struct rtnl_tca *);
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extern int tca_clone(struct rtnl_tca *, struct rtnl_tca *);
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extern int tca_dump_brief(struct rtnl_tca *, const char *,
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struct nl_dump_params *, int);
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extern int tca_dump_full(struct rtnl_tca *, struct nl_dump_params *, int);
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extern int tca_dump_stats(struct rtnl_tca *,
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struct nl_dump_params *, int);
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extern int tca_compare(struct nl_object *, struct nl_object *, uint32_t, int);
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extern void tca_set_ifindex(struct rtnl_tca *, int);
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extern int tca_get_ifindex(struct rtnl_tca *);
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extern void tca_set_handle(struct rtnl_tca *, uint32_t);
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extern uint32_t tca_get_handle(struct rtnl_tca *);
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extern void tca_set_parent(struct rtnl_tca *, uint32_t);
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extern uint32_t tca_get_parent(struct rtnl_tca *);
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extern void tca_set_kind(struct rtnl_tca *, const char *);
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extern char *tca_get_kind(struct rtnl_tca *);
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extern uint64_t tca_get_stat(struct rtnl_tca *, int );
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extern int tca_build_msg(struct rtnl_tca *, int, int, struct nl_msg **);
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static inline void *tca_priv(struct rtnl_tca *tca)
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{
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return tca->tc_subdata;
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}
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static inline void *tca_xstats(struct rtnl_tca *tca)
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{
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return tca->tc_xstats->d_data;
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}
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#ifdef __cplusplus
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}
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#endif
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#endif
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