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netlink: add u8/u64 attribute fetcher accessors to snl(3).
MFC after: 2 weeks
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4530e0c3e7
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@ -75,10 +75,14 @@
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.Ft "bool"
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.Fn snl_attr_get_flag "struct snl_state *ss" "struct nlattr *nla" "void *target"
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.Ft "bool"
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.Fn snl_attr_get_uint8 "struct snl_state *ss" "struct nlattr *nla" "void *target"
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.Ft "bool"
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.Fn snl_attr_get_uint16 "struct snl_state *ss" "struct nlattr *nla" "void *target"
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.Ft "bool"
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.Fn snl_attr_get_uint32 "struct snl_state *ss" "struct nlattr *nla" "void *target"
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.Ft "bool"
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.Fn snl_attr_get_uint64 "struct snl_state *ss" "struct nlattr *nla" "void *target"
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.Ft "bool"
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.Fn snl_attr_get_string "struct snl_state *ss" "struct nlattr *nla" "void *target"
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.Ft "bool"
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.Fn snl_attr_get_stringn "struct snl_state *ss" "struct nlattr *nla" "void *target"
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@ -181,10 +185,14 @@ A number of predefined getters for the common data types exist.
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.Fn snl_attr_get_flag
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converts a flag-type attribute to an uint8_t value of 1 or 0, depending on the
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attribute presence.
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.Fn snl_attr_get_uint8
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stores a uint8_t type attribute into the uint8_t target field.
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.Fn snl_attr_get_uint16
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stores a uint16_t type attribute into the uint16_t target field.
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.Fn snl_attr_get_uint32
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stores a uint32_t type attribute into the uint32_t target field.
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.Fn snl_attr_get_uint64
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stores a uint64_t type attribute into the uint64_t target field.
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.Fn snl_attr_get_ip
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and
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.Fn snl_attr_get_ipvia
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@ -355,6 +355,17 @@ snl_attr_get_flag(struct snl_state *ss __unused, struct nlattr *nla, void *targe
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return (false);
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}
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static inline bool
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snl_attr_get_uint8(struct snl_state *ss __unused, struct nlattr *nla,
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const void *arg __unused, void *target)
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{
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if (NLA_DATA_LEN(nla) == sizeof(uint8_t)) {
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*((uint8_t *)target) = *((const uint8_t *)NLA_DATA_CONST(nla));
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return (true);
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}
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return (false);
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}
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static inline bool
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snl_attr_get_uint16(struct snl_state *ss __unused, struct nlattr *nla,
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const void *arg __unused, void *target)
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@ -377,6 +388,17 @@ snl_attr_get_uint32(struct snl_state *ss __unused, struct nlattr *nla,
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return (false);
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}
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static inline bool
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snl_attr_get_uint64(struct snl_state *ss __unused, struct nlattr *nla,
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const void *arg __unused, void *target)
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{
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if (NLA_DATA_LEN(nla) == sizeof(uint64_t)) {
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memcpy(target, NLA_DATA_CONST(nla), sizeof(uint64_t));
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return (true);
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}
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return (false);
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}
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static inline bool
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snl_attr_get_string(struct snl_state *ss __unused, struct nlattr *nla,
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const void *arg __unused, void *target)
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@ -416,7 +438,8 @@ snl_attr_get_nested(struct snl_state *ss, struct nlattr *nla, const void *arg, v
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}
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static inline bool
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snl_attr_get_nla(struct snl_state *ss __unused, struct nlattr *nla, void *target)
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snl_attr_get_nla(struct snl_state *ss __unused, struct nlattr *nla,
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const void *arg __unused, void *target)
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{
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*((struct nlattr **)target) = nla;
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return (true);
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