107 lines
2.4 KiB
C
107 lines
2.4 KiB
C
#ifndef _TLV_H
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#define _TLV_H
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#include <sys/types.h>
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#include <string.h>
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#define TLV_GROSS_LEN(x) (x+2)
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#define TLV16_GROSS_LEN(x) ((2*x)+2)
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#define TL16V_GROSS_LEN(x) (x+3)
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static inline u_int8_t *tlv_put(u_int8_t *buf, u_int8_t tag, u_int8_t len,
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const u_int8_t *val)
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{
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*buf++ = tag;
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*buf++ = len;
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memcpy(buf, val, len);
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return buf + len;
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}
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static inline u_int8_t *tlv16_put(u_int8_t *buf, u_int8_t tag, u_int8_t len,
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const u_int16_t *val)
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{
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*buf++ = tag;
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*buf++ = len;
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memcpy(buf, val, len*2);
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return buf + len*2;
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}
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static inline u_int8_t *tl16v_put(u_int8_t *buf, u_int8_t tag, u_int16_t len,
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const u_int8_t *val)
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{
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*buf++ = tag;
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*buf++ = len >> 8;
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*buf++ = len & 0xff;
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memcpy(buf, val, len);
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return buf + len*2;
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}
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static inline u_int8_t *msgb_tlv16_put(struct msgb *msg, u_int8_t tag, u_int8_t len, const u_int16_t *val)
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{
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u_int8_t *buf = msgb_put(msg, TLV16_GROSS_LEN(len));
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return tlv16_put(buf, tag, len, val);
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}
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static inline u_int8_t *msgb_tl16v_put(struct msgb *msg, u_int8_t tag, u_int16_t len,
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const u_int8_t *val)
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{
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u_int8_t *buf = msgb_put(msg, TL16V_GROSS_LEN(len));
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return tl16v_put(buf, tag, len, val);
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}
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static inline u_int8_t *tv_put(u_int8_t *buf, u_int8_t tag,
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u_int8_t val)
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{
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*buf++ = tag;
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*buf++ = val;
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return buf;
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}
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static inline u_int8_t *tv16_put(u_int8_t *buf, u_int8_t tag,
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u_int16_t val)
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{
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*buf++ = tag;
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*buf++ = val >> 8;
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*buf++ = val & 0xff;
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return buf;
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}
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static inline u_int8_t *msgb_tlv_put(struct msgb *msg, u_int8_t tag, u_int8_t len, const u_int8_t *val)
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{
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u_int8_t *buf = msgb_put(msg, TLV_GROSS_LEN(len));
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return tlv_put(buf, tag, len, val);
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}
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static inline u_int8_t *msgb_tv_put(struct msgb *msg, u_int8_t tag, u_int8_t val)
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{
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u_int8_t *buf = msgb_put(msg, 2);
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return tv_put(buf, tag, val);
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}
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static inline u_int8_t *msgb_tv16_put(struct msgb *msg, u_int8_t tag, u_int16_t val)
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{
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u_int8_t *buf = msgb_put(msg, 3);
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return tv16_put(buf, tag, val);
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}
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static inline u_int8_t *msgb_tlv_push(struct msgb *msg, u_int8_t tag, u_int8_t len, const u_int8_t *val)
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{
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u_int8_t *buf = msgb_push(msg, TLV_GROSS_LEN(len));
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return tlv_put(buf, tag, len, val);
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}
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static inline u_int8_t *msgb_tv_push(struct msgb *msg, u_int8_t tag, u_int8_t val)
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{
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u_int8_t *buf = msgb_push(msg, 2);
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return tv_put(buf, tag, val);
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}
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static inline u_int8_t *msgb_tv16_push(struct msgb *msg, u_int8_t tag, u_int16_t val)
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{
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u_int8_t *buf = msgb_push(msg, 3);
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return tv16_put(buf, tag, val);
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}
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#endif /* _TLV_H */
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