Lines Matching refs:pkt
17 #define PKT_ERROR(pkt, errmsg) \
19 cfpkt_priv(pkt)->erronous = true; \
20 skb_reset_tail_pointer(&pkt->skb); \
45 static inline struct cfpkt_priv_data *cfpkt_priv(struct cfpkt *pkt)
47 return (struct cfpkt_priv_data *) pkt->skb.cb;
50 static inline bool is_erronous(struct cfpkt *pkt)
52 return cfpkt_priv(pkt)->erronous;
55 static inline struct sk_buff *pkt_to_skb(struct cfpkt *pkt)
57 return &pkt->skb;
67 struct cfpkt *pkt = skb_to_pkt(nativepkt);
68 cfpkt_priv(pkt)->erronous = false;
69 return pkt;
73 void *cfpkt_tonative(struct cfpkt *pkt)
75 return (void *) pkt;
96 void cfpkt_destroy(struct cfpkt *pkt)
98 struct sk_buff *skb = pkt_to_skb(pkt);
102 inline bool cfpkt_more(struct cfpkt *pkt)
104 struct sk_buff *skb = pkt_to_skb(pkt);
108 int cfpkt_peek_head(struct cfpkt *pkt, void *data, u16 len)
110 struct sk_buff *skb = pkt_to_skb(pkt);
115 return !cfpkt_extr_head(pkt, data, len) &&
116 !cfpkt_add_head(pkt, data, len);
119 int cfpkt_extr_head(struct cfpkt *pkt, void *data, u16 len)
121 struct sk_buff *skb = pkt_to_skb(pkt);
123 if (unlikely(is_erronous(pkt)))
127 PKT_ERROR(pkt, "read beyond end of packet\n");
133 PKT_ERROR(pkt, "linearize failed\n");
145 int cfpkt_extr_trail(struct cfpkt *pkt, void *dta, u16 len)
147 struct sk_buff *skb = pkt_to_skb(pkt);
150 if (unlikely(is_erronous(pkt)))
154 PKT_ERROR(pkt, "linearize failed\n");
158 PKT_ERROR(pkt, "read beyond end of packet\n");
167 int cfpkt_pad_trail(struct cfpkt *pkt, u16 len)
169 return cfpkt_add_body(pkt, NULL, len);
172 int cfpkt_add_body(struct cfpkt *pkt, const void *data, u16 len)
174 struct sk_buff *skb = pkt_to_skb(pkt);
180 if (unlikely(is_erronous(pkt)))
198 PKT_ERROR(pkt, "cow failed\n");
210 inline int cfpkt_addbdy(struct cfpkt *pkt, u8 data)
212 return cfpkt_add_body(pkt, &data, 1);
215 int cfpkt_add_head(struct cfpkt *pkt, const void *data2, u16 len)
217 struct sk_buff *skb = pkt_to_skb(pkt);
222 if (unlikely(is_erronous(pkt)))
225 PKT_ERROR(pkt, "no headroom\n");
232 PKT_ERROR(pkt, "cow failed\n");
242 inline int cfpkt_add_trail(struct cfpkt *pkt, const void *data, u16 len)
244 return cfpkt_add_body(pkt, data, len);
247 inline u16 cfpkt_getlen(struct cfpkt *pkt)
249 struct sk_buff *skb = pkt_to_skb(pkt);
253 int cfpkt_iterate(struct cfpkt *pkt,
261 if (unlikely(is_erronous(pkt)))
263 if (unlikely(skb_linearize(&pkt->skb) != 0)) {
264 PKT_ERROR(pkt, "linearize failed\n");
267 return iter_func(data, pkt->skb.data, cfpkt_getlen(pkt));
270 int cfpkt_setlen(struct cfpkt *pkt, u16 len)
272 struct sk_buff *skb = pkt_to_skb(pkt);
275 if (unlikely(is_erronous(pkt)))
284 return cfpkt_getlen(pkt);
288 if (unlikely(!cfpkt_pad_trail(pkt, len - skb->len)))
289 PKT_ERROR(pkt, "skb_pad_trail failed\n");
291 return cfpkt_getlen(pkt);
331 struct cfpkt *cfpkt_split(struct cfpkt *pkt, u16 pos)
334 struct sk_buff *skb = pkt_to_skb(pkt);
339 if (unlikely(is_erronous(pkt)))
343 PKT_ERROR(pkt, "trying to split beyond end of packet\n");
367 bool cfpkt_erroneous(struct cfpkt *pkt)
369 return cfpkt_priv(pkt)->erronous;
372 struct caif_payload_info *cfpkt_info(struct cfpkt *pkt)
374 return (struct caif_payload_info *)&pkt_to_skb(pkt)->cb;
378 void cfpkt_set_prio(struct cfpkt *pkt, int prio)
380 pkt_to_skb(pkt)->priority = prio;