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[RTNETLINK]: Add RTA_(PUT|GET) shortcuts for u8, u16, and flag

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Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Thomas Graf 2005-06-18 22:52:36 -07:00 committed by David S. Miller
parent e386c6eb43
commit 8f48bcd4ef
1 changed files with 23 additions and 0 deletions
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23
include/linux/rtnetlink.h
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@ -897,6 +897,14 @@ extern void __rta_fill(struct sk_buff *skb, int attrtype, int attrlen, const voi
goto rtattr_failure; \
memcpy(skb_put(skb, RTA_ALIGN(attrlen)), data, attrlen); })
#define RTA_PUT_U8(skb, attrtype, value) \
({ u8 _tmp = (value); \
RTA_PUT(skb, attrtype, sizeof(u8), &_tmp); })
#define RTA_PUT_U16(skb, attrtype, value) \
({ u16 _tmp = (value); \
RTA_PUT(skb, attrtype, sizeof(u16), &_tmp); })
#define RTA_PUT_U32(skb, attrtype, value) \
({ u32 _tmp = (value); \
RTA_PUT(skb, attrtype, sizeof(u32), &_tmp); })
@ -914,6 +922,9 @@ extern void __rta_fill(struct sk_buff *skb, int attrtype, int attrlen, const voi
#define RTA_PUT_STRING(skb, attrtype, value) \
RTA_PUT(skb, attrtype, strlen(value) + 1, value)
#define RTA_PUT_FLAG(skb, attrtype) \
RTA_PUT(skb, attrtype, 0, NULL);
#define RTA_NEST(skb, type) \
({ struct rtattr *__start = (struct rtattr *) (skb)->tail; \
RTA_PUT(skb, type, 0, NULL); \
@ -928,6 +939,16 @@ extern void __rta_fill(struct sk_buff *skb, int attrtype, int attrlen, const voi
skb_trim(skb, (unsigned char *) (start) - (skb)->data); \
-1; })
#define RTA_GET_U8(rta) \
({ if (!rta || RTA_PAYLOAD(rta) < sizeof(u8)) \
goto rtattr_failure; \
*(u8 *) RTA_DATA(rta); })
#define RTA_GET_U16(rta) \
({ if (!rta || RTA_PAYLOAD(rta) < sizeof(u16)) \
goto rtattr_failure; \
*(u16 *) RTA_DATA(rta); })
#define RTA_GET_U32(rta) \
({ if (!rta || RTA_PAYLOAD(rta) < sizeof(u32)) \
goto rtattr_failure; \
@ -940,6 +961,8 @@ extern void __rta_fill(struct sk_buff *skb, int attrtype, int attrlen, const voi
memcpy(&_tmp, RTA_DATA(rta), sizeof(_tmp)); \
_tmp; })
#define RTA_GET_FLAG(rta) (!!(rta))
#define RTA_GET_SECS(rta) ((unsigned long) RTA_GET_U64(rta) * HZ)
#define RTA_GET_MSECS(rta) (msecs_to_jiffies((unsigned long) RTA_GET_U64(rta)))