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36#define CREATE_TRACE_POINTS
37#include "trace.h"
38
39
40
41
42
43unsigned long sysctl_tipc_sk_filter[5] __read_mostly = {0, };
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52
53int tipc_skb_dump(struct sk_buff *skb, bool more, char *buf)
54{
55 int i = 0;
56 size_t sz = (more) ? SKB_LMAX : SKB_LMIN;
57 struct tipc_msg *hdr;
58 struct tipc_skb_cb *skbcb;
59
60 if (!skb) {
61 i += scnprintf(buf, sz, "msg: (null)\n");
62 return i;
63 }
64
65 hdr = buf_msg(skb);
66 skbcb = TIPC_SKB_CB(skb);
67
68
69 i += scnprintf(buf, sz, "msg: %u", msg_user(hdr));
70 i += scnprintf(buf + i, sz - i, " %u", msg_type(hdr));
71 i += scnprintf(buf + i, sz - i, " %u", msg_hdr_sz(hdr));
72 i += scnprintf(buf + i, sz - i, " %u", msg_data_sz(hdr));
73 i += scnprintf(buf + i, sz - i, " %x", msg_orignode(hdr));
74 i += scnprintf(buf + i, sz - i, " %x", msg_destnode(hdr));
75 i += scnprintf(buf + i, sz - i, " %u", msg_seqno(hdr));
76 i += scnprintf(buf + i, sz - i, " %u", msg_ack(hdr));
77 i += scnprintf(buf + i, sz - i, " %u", msg_bcast_ack(hdr));
78 switch (msg_user(hdr)) {
79 case LINK_PROTOCOL:
80 i += scnprintf(buf + i, sz - i, " %c", msg_net_plane(hdr));
81 i += scnprintf(buf + i, sz - i, " %u", msg_probe(hdr));
82 i += scnprintf(buf + i, sz - i, " %u", msg_peer_stopping(hdr));
83 i += scnprintf(buf + i, sz - i, " %u", msg_session(hdr));
84 i += scnprintf(buf + i, sz - i, " %u", msg_next_sent(hdr));
85 i += scnprintf(buf + i, sz - i, " %u", msg_seq_gap(hdr));
86 i += scnprintf(buf + i, sz - i, " %u", msg_bc_snd_nxt(hdr));
87 i += scnprintf(buf + i, sz - i, " %u", msg_bc_gap(hdr));
88 break;
89 case TIPC_LOW_IMPORTANCE:
90 case TIPC_MEDIUM_IMPORTANCE:
91 case TIPC_HIGH_IMPORTANCE:
92 case TIPC_CRITICAL_IMPORTANCE:
93 case CONN_MANAGER:
94 case SOCK_WAKEUP:
95 i += scnprintf(buf + i, sz - i, " | %u", msg_origport(hdr));
96 i += scnprintf(buf + i, sz - i, " %u", msg_destport(hdr));
97 switch (msg_type(hdr)) {
98 case TIPC_NAMED_MSG:
99 i += scnprintf(buf + i, sz - i, " %u",
100 msg_nametype(hdr));
101 i += scnprintf(buf + i, sz - i, " %u",
102 msg_nameinst(hdr));
103 break;
104 case TIPC_MCAST_MSG:
105 i += scnprintf(buf + i, sz - i, " %u",
106 msg_nametype(hdr));
107 i += scnprintf(buf + i, sz - i, " %u",
108 msg_namelower(hdr));
109 i += scnprintf(buf + i, sz - i, " %u",
110 msg_nameupper(hdr));
111 break;
112 default:
113 break;
114 }
115 i += scnprintf(buf + i, sz - i, " | %u",
116 msg_src_droppable(hdr));
117 i += scnprintf(buf + i, sz - i, " %u",
118 msg_dest_droppable(hdr));
119 i += scnprintf(buf + i, sz - i, " %u", msg_errcode(hdr));
120 i += scnprintf(buf + i, sz - i, " %u", msg_reroute_cnt(hdr));
121 break;
122 default:
123
124 break;
125 }
126
127 i += scnprintf(buf + i, sz - i, "\n");
128 if (!more)
129 return i;
130
131
132 i += scnprintf(buf + i, sz - i, "skb: %s",
133 (skb->dev) ? skb->dev->name : "n/a");
134 i += scnprintf(buf + i, sz - i, " %u", skb->len);
135 i += scnprintf(buf + i, sz - i, " %u", skb->data_len);
136 i += scnprintf(buf + i, sz - i, " %u", skb->hdr_len);
137 i += scnprintf(buf + i, sz - i, " %u", skb->truesize);
138 i += scnprintf(buf + i, sz - i, " %u", skb_cloned(skb));
139 i += scnprintf(buf + i, sz - i, " %p", skb->sk);
140 i += scnprintf(buf + i, sz - i, " %u", skb_shinfo(skb)->nr_frags);
141 i += scnprintf(buf + i, sz - i, " %llx",
142 ktime_to_ms(skb_get_ktime(skb)));
143 i += scnprintf(buf + i, sz - i, " %llx\n",
144 ktime_to_ms(skb_hwtstamps(skb)->hwtstamp));
145
146
147 i += scnprintf(buf + i, sz - i, "cb[]: %u", skbcb->bytes_read);
148 i += scnprintf(buf + i, sz - i, " %u", skbcb->orig_member);
149 i += scnprintf(buf + i, sz - i, " %u",
150 jiffies_to_msecs(skbcb->nxt_retr));
151 i += scnprintf(buf + i, sz - i, " %u", skbcb->validated);
152 i += scnprintf(buf + i, sz - i, " %u", skbcb->chain_imp);
153 i += scnprintf(buf + i, sz - i, " %u\n", skbcb->ackers);
154
155 return i;
156}
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165
166int tipc_list_dump(struct sk_buff_head *list, bool more, char *buf)
167{
168 int i = 0;
169 size_t sz = (more) ? LIST_LMAX : LIST_LMIN;
170 u32 count, len;
171 struct sk_buff *hskb, *tskb, *skb, *tmp;
172
173 if (!list) {
174 i += scnprintf(buf, sz, "(null)\n");
175 return i;
176 }
177
178 len = skb_queue_len(list);
179 i += scnprintf(buf, sz, "len = %d\n", len);
180
181 if (!len)
182 return i;
183
184 if (!more) {
185 hskb = skb_peek(list);
186 i += scnprintf(buf + i, sz - i, " head ");
187 i += tipc_skb_dump(hskb, false, buf + i);
188 if (len > 1) {
189 tskb = skb_peek_tail(list);
190 i += scnprintf(buf + i, sz - i, " tail ");
191 i += tipc_skb_dump(tskb, false, buf + i);
192 }
193 } else {
194 count = 0;
195 skb_queue_walk_safe(list, skb, tmp) {
196 count++;
197 if (count == 6)
198 i += scnprintf(buf + i, sz - i, " .\n .\n");
199 if (count > 5 && count <= len - 5)
200 continue;
201 i += scnprintf(buf + i, sz - i, " #%d ", count);
202 i += tipc_skb_dump(skb, false, buf + i);
203 }
204 }
205 return i;
206}
207