d/freebsd-dev
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

netlink: add u8/u64 attribute fetcher accessors to snl(3).

Browse Source 
MFC after:	2 weeks
This commit is contained in:
Alexander V. Chernikov 2023-03-03 14:05:40 +00:00
parent 4530e0c3e7
commit 61507ae30b
2 changed files with 32 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
share/man/man3/snl.3
View File

@ -75,10 +75,14 @@
.Ft "bool"
.Fn snl_attr_get_flag "struct snl_state *ss" "struct nlattr *nla" "void *target"
.Ft "bool"
.Fn snl_attr_get_uint8 "struct snl_state *ss" "struct nlattr *nla" "void *target"
.Ft "bool"
.Fn snl_attr_get_uint16 "struct snl_state *ss" "struct nlattr *nla" "void *target"
.Ft "bool"
.Fn snl_attr_get_uint32 "struct snl_state *ss" "struct nlattr *nla" "void *target"
.Ft "bool"
.Fn snl_attr_get_uint64 "struct snl_state *ss" "struct nlattr *nla" "void *target"
.Ft "bool"
.Fn snl_attr_get_string "struct snl_state *ss" "struct nlattr *nla" "void *target"
.Ft "bool"
.Fn snl_attr_get_stringn "struct snl_state *ss" "struct nlattr *nla" "void *target"
@ -181,10 +185,14 @@ A number of predefined getters for the common data types exist.
.Fn snl_attr_get_flag
converts a flag-type attribute to an uint8_t value of 1 or 0, depending on the
attribute presence.
.Fn snl_attr_get_uint8
stores a uint8_t type attribute into the uint8_t target field.
.Fn snl_attr_get_uint16
stores a uint16_t type attribute into the uint16_t target field.
.Fn snl_attr_get_uint32
stores a uint32_t type attribute into the uint32_t target field.
.Fn snl_attr_get_uint64
stores a uint64_t type attribute into the uint64_t target field.
.Fn snl_attr_get_ip
and
.Fn snl_attr_get_ipvia

25
sys/netlink/netlink_snl.h
View File

@ -355,6 +355,17 @@ snl_attr_get_flag(struct snl_state *ss __unused, struct nlattr *nla, void *targe
return (false);
}
static inline bool
snl_attr_get_uint8(struct snl_state *ss __unused, struct nlattr *nla,
const void *arg __unused, void *target)
{
if (NLA_DATA_LEN(nla) == sizeof(uint8_t)) {
*((uint8_t *)target) = *((const uint8_t *)NLA_DATA_CONST(nla));
return (true);
}
return (false);
}
static inline bool
snl_attr_get_uint16(struct snl_state *ss __unused, struct nlattr *nla,
const void *arg __unused, void *target)
@ -377,6 +388,17 @@ snl_attr_get_uint32(struct snl_state *ss __unused, struct nlattr *nla,
return (false);
}
static inline bool
snl_attr_get_uint64(struct snl_state *ss __unused, struct nlattr *nla,
const void *arg __unused, void *target)
{
if (NLA_DATA_LEN(nla) == sizeof(uint64_t)) {
memcpy(target, NLA_DATA_CONST(nla), sizeof(uint64_t));
return (true);
}
return (false);
}
static inline bool
snl_attr_get_string(struct snl_state *ss __unused, struct nlattr *nla,
const void *arg __unused, void *target)
@ -416,7 +438,8 @@ snl_attr_get_nested(struct snl_state *ss, struct nlattr *nla, const void *arg, v
}
static inline bool
snl_attr_get_nla(struct snl_state *ss __unused, struct nlattr *nla, void *target)
snl_attr_get_nla(struct snl_state *ss __unused, struct nlattr *nla,
const void *arg __unused, void *target)
{
*((struct nlattr **)target) = nla;
return (true);