Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1// SPDX-License-Identifier: LGPL-2.1
2#include <sys/types.h>
3#include <sys/socket.h>
4
5#ifndef MSG_PROBE
6#define MSG_PROBE 0x10
7#endif
8#ifndef MSG_WAITFORONE
9#define MSG_WAITFORONE 0x10000
10#endif
11#ifndef MSG_BATCH
12#define MSG_BATCH 0x40000
13#endif
14#ifndef MSG_SOCK_DEVMEM
15#define MSG_SOCK_DEVMEM 0x2000000
16#endif
17#ifndef MSG_ZEROCOPY
18#define MSG_ZEROCOPY 0x4000000
19#endif
20#ifndef MSG_SPLICE_PAGES
21#define MSG_SPLICE_PAGES 0x8000000
22#endif
23#ifndef MSG_FASTOPEN
24#define MSG_FASTOPEN 0x20000000
25#endif
26#ifndef MSG_CMSG_CLOEXEC
27# define MSG_CMSG_CLOEXEC 0x40000000
28#endif
29
30static size_t syscall_arg__scnprintf_msg_flags(char *bf, size_t size,
31 struct syscall_arg *arg)
32{
33 bool show_prefix = arg->show_string_prefix;
34 const char *prefix = "MSG_";
35 int printed = 0, flags = arg->val;
36
37 if (flags == 0)
38 return scnprintf(bf, size, "NONE");
39#define P_MSG_FLAG(n) \
40 if (flags & MSG_##n) { \
41 printed += scnprintf(bf + printed, size - printed, "%s%s%s", printed ? "|" : "", show_prefix ? prefix : "", #n); \
42 flags &= ~MSG_##n; \
43 }
44
45 P_MSG_FLAG(OOB);
46 P_MSG_FLAG(PEEK);
47 P_MSG_FLAG(DONTROUTE);
48 P_MSG_FLAG(CTRUNC);
49 P_MSG_FLAG(PROBE);
50 P_MSG_FLAG(TRUNC);
51 P_MSG_FLAG(DONTWAIT);
52 P_MSG_FLAG(EOR);
53 P_MSG_FLAG(WAITALL);
54 P_MSG_FLAG(FIN);
55 P_MSG_FLAG(SYN);
56 P_MSG_FLAG(CONFIRM);
57 P_MSG_FLAG(RST);
58 P_MSG_FLAG(ERRQUEUE);
59 P_MSG_FLAG(NOSIGNAL);
60 P_MSG_FLAG(MORE);
61 P_MSG_FLAG(WAITFORONE);
62 P_MSG_FLAG(BATCH);
63 P_MSG_FLAG(SOCK_DEVMEM);
64 P_MSG_FLAG(ZEROCOPY);
65 P_MSG_FLAG(SPLICE_PAGES);
66 P_MSG_FLAG(FASTOPEN);
67 P_MSG_FLAG(CMSG_CLOEXEC);
68#undef P_MSG_FLAG
69
70 if (flags)
71 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags);
72
73 return printed;
74}
75
76#define SCA_MSG_FLAGS syscall_arg__scnprintf_msg_flags