[PATCH 4/7] [RTNETLINK] Add RTA_(PUT|GET) shortcuts for u8, u16, and flag
From: Thomas Graf <tgraf@suug.ch>
Date: 2005-05-27 14:52:52
Signed-off-by: Thomas Graf <tgraf@suug.ch> --- commit c49bbdd22621352b9b96097ffdb9e5c14b4ed95e tree 6204e59b7aa59cf79632003c621e521db1297b1b parent 0ecf7991c4f8532a5afc903e175e2bec80585fea author Thomas Graf [off-list ref] Fri, 27 May 2005 14:36:11 +0200 committer Thomas Graf [off-list ref] Fri, 27 May 2005 14:36:11 +0200 include/linux/rtnetlink.h | 23 +++++++++++++++++++++++ 1 files changed, 23 insertions(+) Index: include/linux/rtnetlink.h ===================================================================
--- 07e28bf36ae4052536820a75bbefc6ac1c7a9098/include/linux/rtnetlink.h (mode:100644)
+++ 6204e59b7aa59cf79632003c621e521db1297b1b/include/linux/rtnetlink.h (mode:100644)@@ -897,6 +897,14 @@ 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 @@ #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 @@ 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 @@ 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)))