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netlink: add nlattr_get_uint8() function to pack u8 attributes.

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MFC after:	2 weeks
This commit is contained in:
Alexander V. Chernikov 2023-04-25 10:56:42 +00:00
parent 34066d0008
commit 70810dc817
2 changed files with 15 additions and 1 deletions
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14
sys/netlink/netlink_message_parser.c
View file

@ -314,11 +314,23 @@ nlattr_get_ipvia(struct nlattr *nla, struct nl_pstate *npt, const void *arg, voi
}
int
nlattr_get_uint8(struct nlattr *nla, struct nl_pstate *npt, const void *arg, void *target)
{
if (__predict_false(NLA_DATA_LEN(nla) != sizeof(uint8_t))) {
NLMSG_REPORT_ERR_MSG(npt, "nla type %d size(%u) is not uint8",
nla->nla_type, NLA_DATA_LEN(nla));
return (EINVAL);
}
*((uint16_t *)target) = *((const uint16_t *)NL_RTA_DATA_CONST(nla));
return (0);
}
int
nlattr_get_uint16(struct nlattr *nla, struct nl_pstate *npt, const void *arg, void *target)
{
if (__predict_false(NLA_DATA_LEN(nla) != sizeof(uint16_t))) {
NLMSG_REPORT_ERR_MSG(npt, "nla type %d size(%u) is not uint32",
NLMSG_REPORT_ERR_MSG(npt, "nla type %d size(%u) is not uint16",
nla->nla_type, NLA_DATA_LEN(nla));
return (EINVAL);
}

2
sys/netlink/netlink_message_parser.h
View file

@ -169,6 +169,8 @@ int nlattr_get_flag(struct nlattr *nla, struct nl_pstate *npt,
const void *arg, void *target);
int nlattr_get_ip(struct nlattr *nla, struct nl_pstate *npt,
const void *arg, void *target);
int nlattr_get_uint8(struct nlattr *nla, struct nl_pstate *npt,
const void *arg, void *target);
int nlattr_get_uint16(struct nlattr *nla, struct nl_pstate *npt,
const void *arg, void *target);
int nlattr_get_uint32(struct nlattr *nla, struct nl_pstate *npt,