diff options
Diffstat (limited to 'include/net/netfilter/nf_tables.h')
| -rw-r--r-- | include/net/netfilter/nf_tables.h | 30 |
1 files changed, 29 insertions, 1 deletions
diff --git a/include/net/netfilter/nf_tables.h b/include/net/netfilter/nf_tables.h index 2aa8a9d80fbe..0136028652bd 100644 --- a/include/net/netfilter/nf_tables.h +++ b/include/net/netfilter/nf_tables.h @@ -103,6 +103,35 @@ struct nft_regs { }; }; +/* Store/load an u16 or u8 integer to/from the u32 data register. + * + * Note, when using concatenations, register allocation happens at 32-bit + * level. So for store instruction, pad the rest part with zero to avoid + * garbage values. + */ + +static inline void nft_reg_store16(u32 *dreg, u16 val) +{ + *dreg = 0; + *(u16 *)dreg = val; +} + +static inline void nft_reg_store8(u32 *dreg, u8 val) +{ + *dreg = 0; + *(u8 *)dreg = val; +} + +static inline u16 nft_reg_load16(u32 *sreg) +{ + return *(u16 *)sreg; +} + +static inline u8 nft_reg_load8(u32 *sreg) +{ + return *(u8 *)sreg; +} + static inline void nft_data_copy(u32 *dst, const struct nft_data *src, unsigned int len) { @@ -203,7 +232,6 @@ struct nft_set_elem { struct nft_set; struct nft_set_iter { u8 genmask; - bool flush; unsigned int count; unsigned int skip; int err; |