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Diffstat (limited to 'net/tipc/msg.h')
-rw-r--r--net/tipc/msg.h169
1 files changed, 155 insertions, 14 deletions
diff --git a/net/tipc/msg.h b/net/tipc/msg.h
index d7e4b8b93f9d..6d466ebdb64f 100644
--- a/net/tipc/msg.h
+++ b/net/tipc/msg.h
@@ -102,14 +102,42 @@ struct plist;
#define TIPC_MEDIA_INFO_OFFSET 5
struct tipc_skb_cb {
- u32 bytes_read;
- u32 orig_member;
- struct sk_buff *tail;
- unsigned long nxt_retr;
- bool validated;
- u16 chain_imp;
- u16 ackers;
-};
+ union {
+ struct {
+ struct sk_buff *tail;
+ unsigned long nxt_retr;
+ unsigned long retr_stamp;
+ u32 bytes_read;
+ u32 orig_member;
+ u16 chain_imp;
+ u16 ackers;
+ u16 retr_cnt;
+ } __packed;
+#ifdef CONFIG_TIPC_CRYPTO
+ struct {
+ struct tipc_crypto *rx;
+ struct tipc_aead *last;
+ u8 recurs;
+ } tx_clone_ctx __packed;
+#endif
+ } __packed;
+ union {
+ struct {
+ u8 validated:1;
+#ifdef CONFIG_TIPC_CRYPTO
+ u8 encrypted:1;
+ u8 decrypted:1;
+ u8 probe:1;
+ u8 tx_clone_deferred:1;
+#endif
+ };
+ u8 flags;
+ };
+ u8 reserved;
+#ifdef CONFIG_TIPC_CRYPTO
+ void *crypto_ctx;
+#endif
+} __packed;
#define TIPC_SKB_CB(__skb) ((struct tipc_skb_cb *)&((__skb)->cb[0]))
@@ -117,6 +145,37 @@ struct tipc_msg {
__be32 hdr[15];
};
+/* struct tipc_gap_ack - TIPC Gap ACK block
+ * @ack: seqno of the last consecutive packet in link deferdq
+ * @gap: number of gap packets since the last ack
+ *
+ * E.g:
+ * link deferdq: 1 2 3 4 10 11 13 14 15 20
+ * --> Gap ACK blocks: <4, 5>, <11, 1>, <15, 4>, <20, 0>
+ */
+struct tipc_gap_ack {
+ __be16 ack;
+ __be16 gap;
+};
+
+/* struct tipc_gap_ack_blks
+ * @len: actual length of the record
+ * @gack_cnt: number of Gap ACK blocks in the record
+ * @gacks: array of Gap ACK blocks
+ */
+struct tipc_gap_ack_blks {
+ __be16 len;
+ u8 gack_cnt;
+ u8 reserved;
+ struct tipc_gap_ack gacks[];
+};
+
+#define tipc_gap_ack_blks_sz(n) (sizeof(struct tipc_gap_ack_blks) + \
+ sizeof(struct tipc_gap_ack) * (n))
+
+#define MAX_GAP_ACK_BLKS 32
+#define MAX_GAP_ACK_BLKS_SZ tipc_gap_ack_blks_sz(MAX_GAP_ACK_BLKS)
+
static inline struct tipc_msg *buf_msg(struct sk_buff *skb)
{
return (struct tipc_msg *)skb->data;
@@ -257,6 +316,26 @@ static inline void msg_set_src_droppable(struct tipc_msg *m, u32 d)
msg_set_bits(m, 0, 18, 1, d);
}
+static inline int msg_ack_required(struct tipc_msg *m)
+{
+ return msg_bits(m, 0, 18, 1);
+}
+
+static inline void msg_set_ack_required(struct tipc_msg *m, u32 d)
+{
+ msg_set_bits(m, 0, 18, 1, d);
+}
+
+static inline bool msg_is_rcast(struct tipc_msg *m)
+{
+ return msg_bits(m, 0, 18, 0x1);
+}
+
+static inline void msg_set_is_rcast(struct tipc_msg *m, bool d)
+{
+ msg_set_bits(m, 0, 18, 0x1, d);
+}
+
static inline void msg_set_size(struct tipc_msg *m, u32 sz)
{
m->hdr[0] = htonl((msg_word(m, 0) & ~0x1ffff) | sz);
@@ -267,7 +346,7 @@ static inline unchar *msg_data(struct tipc_msg *m)
return ((unchar *)m) + msg_hdr_sz(m);
}
-static inline struct tipc_msg *msg_get_wrapped(struct tipc_msg *m)
+static inline struct tipc_msg *msg_inner_hdr(struct tipc_msg *m)
{
return (struct tipc_msg *)msg_data(m);
}
@@ -445,7 +524,7 @@ static inline void msg_set_prevnode(struct tipc_msg *m, u32 a)
static inline u32 msg_origport(struct tipc_msg *m)
{
if (msg_user(m) == MSG_FRAGMENTER)
- m = msg_get_wrapped(m);
+ m = msg_inner_hdr(m);
return msg_word(m, 4);
}
@@ -680,12 +759,26 @@ static inline void msg_set_last_bcast(struct tipc_msg *m, u32 n)
msg_set_bits(m, 4, 16, 0xffff, n);
}
+static inline u32 msg_nof_fragms(struct tipc_msg *m)
+{
+ return msg_bits(m, 4, 0, 0xffff);
+}
+
+static inline void msg_set_nof_fragms(struct tipc_msg *m, u32 n)
+{
+ msg_set_bits(m, 4, 0, 0xffff, n);
+}
+
+static inline u32 msg_fragm_no(struct tipc_msg *m)
+{
+ return msg_bits(m, 4, 16, 0xffff);
+}
+
static inline void msg_set_fragm_no(struct tipc_msg *m, u32 n)
{
msg_set_bits(m, 4, 16, 0xffff, n);
}
-
static inline u16 msg_next_sent(struct tipc_msg *m)
{
return msg_bits(m, 4, 0, 0xffff);
@@ -836,6 +929,16 @@ static inline void msg_set_msgcnt(struct tipc_msg *m, u16 n)
msg_set_bits(m, 9, 16, 0xffff, n);
}
+static inline u16 msg_syncpt(struct tipc_msg *m)
+{
+ return msg_bits(m, 9, 16, 0xffff);
+}
+
+static inline void msg_set_syncpt(struct tipc_msg *m, u16 n)
+{
+ msg_set_bits(m, 9, 16, 0xffff, n);
+}
+
static inline u32 msg_conn_ack(struct tipc_msg *m)
{
return msg_bits(m, 9, 16, 0xffff);
@@ -959,6 +1062,20 @@ static inline bool msg_is_reset(struct tipc_msg *hdr)
return (msg_user(hdr) == LINK_PROTOCOL) && (msg_type(hdr) == RESET_MSG);
}
+/* Word 13
+ */
+static inline void msg_set_peer_net_hash(struct tipc_msg *m, u32 n)
+{
+ msg_set_word(m, 13, n);
+}
+
+static inline u32 msg_peer_net_hash(struct tipc_msg *m)
+{
+ return msg_word(m, 13);
+}
+
+/* Word 14
+ */
static inline u32 msg_sugg_node_addr(struct tipc_msg *m)
{
return msg_word(m, 14);
@@ -990,12 +1107,15 @@ struct sk_buff *tipc_msg_create(uint user, uint type, uint hdr_sz,
uint data_sz, u32 dnode, u32 onode,
u32 dport, u32 oport, int errcode);
int tipc_buf_append(struct sk_buff **headbuf, struct sk_buff **buf);
-bool tipc_msg_bundle(struct sk_buff *skb, struct tipc_msg *msg, u32 mtu);
-bool tipc_msg_make_bundle(struct sk_buff **skb, struct tipc_msg *msg,
- u32 mtu, u32 dnode);
+bool tipc_msg_try_bundle(struct sk_buff *tskb, struct sk_buff **skb, u32 mss,
+ u32 dnode, bool *new_bundle);
bool tipc_msg_extract(struct sk_buff *skb, struct sk_buff **iskb, int *pos);
+int tipc_msg_fragment(struct sk_buff *skb, const struct tipc_msg *hdr,
+ int pktmax, struct sk_buff_head *frags);
int tipc_msg_build(struct tipc_msg *mhdr, struct msghdr *m,
int offset, int dsz, int mtu, struct sk_buff_head *list);
+int tipc_msg_append(struct tipc_msg *hdr, struct msghdr *m, int dlen,
+ int mss, struct sk_buff_head *txq);
bool tipc_msg_lookup_dest(struct net *net, struct sk_buff *skb, int *err);
bool tipc_msg_assemble(struct sk_buff_head *list);
bool tipc_msg_reassemble(struct sk_buff_head *list, struct sk_buff_head *rcvq);
@@ -1110,4 +1230,25 @@ static inline void tipc_skb_queue_splice_tail_init(struct sk_buff_head *list,
tipc_skb_queue_splice_tail(&tmp, head);
}
+/* __tipc_skb_dequeue() - dequeue the head skb according to expected seqno
+ * @list: list to be dequeued from
+ * @seqno: seqno of the expected msg
+ *
+ * returns skb dequeued from the list if its seqno is less than or equal to
+ * the expected one, otherwise the skb is still hold
+ *
+ * Note: must be used with appropriate locks held only
+ */
+static inline struct sk_buff *__tipc_skb_dequeue(struct sk_buff_head *list,
+ u16 seqno)
+{
+ struct sk_buff *skb = skb_peek(list);
+
+ if (skb && less_eq(buf_seqno(skb), seqno)) {
+ __skb_unlink(skb, list);
+ return skb;
+ }
+ return NULL;
+}
+
#endif
generated by cgit v1.2.3 (git 2.39.0) at 2025-12-16 23:10:46 +0300