diff options
| author | Jason A. Donenfeld <Jason@zx2c4.com> | 2019-11-27 12:18:52 +0100 |
|---|---|---|
| committer | Jason A. Donenfeld <Jason@zx2c4.com> | 2019-12-05 11:51:39 +0100 |
| commit | 87e48ccfbfb99a849daade12cb7f192edf8eced8 (patch) | |
| tree | ae49e23e98de673f985f0a3a64cb9853c7248e31 /src/compat/compat.h | |
| parent | 23bceb259a4fc28ce61a25cf0a35a1794d4c28de (diff) | |
netlink: prepare for removal of genl_family_attrbuf in 5.5
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Diffstat (limited to 'src/compat/compat.h')
| -rw-r--r-- | src/compat/compat.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/src/compat/compat.h b/src/compat/compat.h index 34d6d9e..ab22fa4 100644 --- a/src/compat/compat.h +++ b/src/compat/compat.h @@ -843,6 +843,24 @@ static inline void skb_mark_not_on_list(struct sk_buff *skb) #define cpu_have_named_feature(name) (elf_hwcap & (HWCAP_ ## name)) #endif +#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 1, 0) +#include <linux/stddef.h> +#ifndef offsetofend +#define offsetofend(TYPE, MEMBER) (offsetof(TYPE, MEMBER) + sizeof(((TYPE *)0)->MEMBER)) +#endif +#endif + +#if LINUX_VERSION_CODE < KERNEL_VERSION(5, 5, 0) +#define genl_dumpit_info(cb) ({ \ + struct { struct nlattr **attrs; } *a = (void *)((u8 *)cb->args + offsetofend(struct dump_ctx, next_allowedip)); \ + BUILD_BUG_ON(sizeof(cb->args) < offsetofend(struct dump_ctx, next_allowedip) + sizeof(*a)); \ + a->attrs = genl_family_attrbuf(&genl_family); \ + if (nlmsg_parse(cb->nlh, GENL_HDRLEN + genl_family.hdrsize, a->attrs, genl_family.maxattr, device_policy, NULL) < 0) \ + memset(a->attrs, 0, (genl_family.maxattr + 1) * sizeof(struct nlattr *)); \ + a; \ +}) +#endif + #if defined(ISUBUNTU1604) #include <linux/siphash.h> #ifndef _WG_LINUX_SIPHASH_H |