netlink.h (d387f6ad10764fc2174373b4a1cca443adee36e3) netlink.h (97676b6b5538b3e059d33b8338e7d5cc41c5f1f1)
1#ifndef __NET_NETLINK_H
2#define __NET_NETLINK_H
3
4#include <linux/types.h>
5#include <linux/netlink.h>
6
7/* ========================================================================
8 * Netlink Messages and Attributes Interface (As Seen On TV)

--- 51 unchanged lines hidden (view full) ---

60 * nlmsg_ok(nlh, remaining) does nlh fit into remaining bytes?
61 * nlmsg_next(nlh, remaining) get next netlink message
62 * nlmsg_parse() parse attributes of a message
63 * nlmsg_find_attr() find an attribute in a message
64 * nlmsg_for_each_msg() loop over all messages
65 * nlmsg_validate() validate netlink message incl. attrs
66 * nlmsg_for_each_attr() loop over all attributes
67 *
1#ifndef __NET_NETLINK_H
2#define __NET_NETLINK_H
3
4#include <linux/types.h>
5#include <linux/netlink.h>
6
7/* ========================================================================
8 * Netlink Messages and Attributes Interface (As Seen On TV)

--- 51 unchanged lines hidden (view full) ---

60 * nlmsg_ok(nlh, remaining) does nlh fit into remaining bytes?
61 * nlmsg_next(nlh, remaining) get next netlink message
62 * nlmsg_parse() parse attributes of a message
63 * nlmsg_find_attr() find an attribute in a message
64 * nlmsg_for_each_msg() loop over all messages
65 * nlmsg_validate() validate netlink message incl. attrs
66 * nlmsg_for_each_attr() loop over all attributes
67 *
68 * Misc:
69 * nlmsg_report() report back to application?
70 *
68 * ------------------------------------------------------------------------
69 * Attributes Interface
70 * ------------------------------------------------------------------------
71 *
72 * Attribute Format:
73 * <------- nla_total_size(payload) ------->
74 * <---- nla_attr_size(payload) ----->
75 * +----------+- - -+- - - - - - - - - +- - -+-------- - -

--- 113 unchanged lines hidden (view full) ---

189 u16 minlen;
190};
191
192extern void netlink_run_queue(struct sock *sk, unsigned int *qlen,
193 int (*cb)(struct sk_buff *,
194 struct nlmsghdr *, int *));
195extern void netlink_queue_skip(struct nlmsghdr *nlh,
196 struct sk_buff *skb);
71 * ------------------------------------------------------------------------
72 * Attributes Interface
73 * ------------------------------------------------------------------------
74 *
75 * Attribute Format:
76 * <------- nla_total_size(payload) ------->
77 * <---- nla_attr_size(payload) ----->
78 * +----------+- - -+- - - - - - - - - +- - -+-------- - -

--- 113 unchanged lines hidden (view full) ---

192 u16 minlen;
193};
194
195extern void netlink_run_queue(struct sock *sk, unsigned int *qlen,
196 int (*cb)(struct sk_buff *,
197 struct nlmsghdr *, int *));
198extern void netlink_queue_skip(struct nlmsghdr *nlh,
199 struct sk_buff *skb);
200extern int nlmsg_notify(struct sock *sk, struct sk_buff *skb,
201 u32 pid, unsigned int group, int report,
202 gfp_t flags);
197
198extern int nla_validate(struct nlattr *head, int len, int maxtype,
199 struct nla_policy *policy);
200extern int nla_parse(struct nlattr *tb[], int maxtype,
201 struct nlattr *head, int len,
202 struct nla_policy *policy);
203extern struct nlattr * nla_find(struct nlattr *head, int len, int attrtype);
204extern size_t nla_strlcpy(char *dst, const struct nlattr *nla,

--- 166 unchanged lines hidden (view full) ---

371 if (nlh->nlmsg_len < nlmsg_msg_size(hdrlen))
372 return -EINVAL;
373
374 return nla_validate(nlmsg_attrdata(nlh, hdrlen),
375 nlmsg_attrlen(nlh, hdrlen), maxtype, policy);
376}
377
378/**
203
204extern int nla_validate(struct nlattr *head, int len, int maxtype,
205 struct nla_policy *policy);
206extern int nla_parse(struct nlattr *tb[], int maxtype,
207 struct nlattr *head, int len,
208 struct nla_policy *policy);
209extern struct nlattr * nla_find(struct nlattr *head, int len, int attrtype);
210extern size_t nla_strlcpy(char *dst, const struct nlattr *nla,

--- 166 unchanged lines hidden (view full) ---

377 if (nlh->nlmsg_len < nlmsg_msg_size(hdrlen))
378 return -EINVAL;
379
380 return nla_validate(nlmsg_attrdata(nlh, hdrlen),
381 nlmsg_attrlen(nlh, hdrlen), maxtype, policy);
382}
383
384/**
385 * nlmsg_report - need to report back to application?
386 * @nlh: netlink message header
387 *
388 * Returns 1 if a report back to the application is requested.
389 */
390static inline int nlmsg_report(struct nlmsghdr *nlh)
391{
392 return !!(nlh->nlmsg_flags & NLM_F_ECHO);
393}
394
395/**
379 * nlmsg_for_each_attr - iterate over a stream of attributes
380 * @pos: loop counter, set to current attribute
381 * @nlh: netlink message header
382 * @hdrlen: length of familiy specific header
383 * @rem: initialized to len, holds bytes currently remaining in stream
384 */
385#define nlmsg_for_each_attr(pos, nlh, hdrlen, rem) \
386 nla_for_each_attr(pos, nlmsg_attrdata(nlh, hdrlen), \

--- 553 unchanged lines hidden --- 		396 * nlmsg_for_each_attr - iterate over a stream of attributes
397 * @pos: loop counter, set to current attribute
398 * @nlh: netlink message header
399 * @hdrlen: length of familiy specific header
400 * @rem: initialized to len, holds bytes currently remaining in stream
401 */
402#define nlmsg_for_each_attr(pos, nlh, hdrlen, rem) \
403 nla_for_each_attr(pos, nlmsg_attrdata(nlh, hdrlen), \

--- 553 unchanged lines hidden ---