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Add Linux socket call decoding to truss

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MFC after:	1 month
This commit is contained in:
Steven Hartland 2014-04-24 14:12:35 +00:00
parent a7f6a46874
commit 1c99a22a29
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=264881
2 changed files with 123 additions and 1 deletions
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44
usr.bin/truss/syscall.h
View File

@ -39,7 +39,8 @@ enum Argtype { None = 1, Hex, Octal, Int, Name, Ptr, Stat, Ioctl, Quad,
Fd_set, Sigaction, Fcntl, Mprot, Mmapflags, Whence, Readlinkres,
Sigset, Sigprocmask, Kevent, Sockdomain, Socktype, Open,
Fcntlflag, Rusage, BinString, Shutdown, Resource, Rlimit, Timeval2,
Pathconf, Rforkflags, ExitStatus, Waitoptions, Idtype, Procctl };
Pathconf, Rforkflags, ExitStatus, Waitoptions, Idtype, Procctl,
LinuxSockArgs };
#define ARG_MASK 0xff
#define OUT 0x100
@ -63,6 +64,47 @@ struct syscall {
struct syscall *get_syscall(const char*);
char *print_arg(struct syscall_args *, unsigned long*, long, struct trussinfo *);
/*
* Linux Socket defines
*/
#define LINUX_SOCKET 1
#define LINUX_BIND 2
#define LINUX_CONNECT 3
#define LINUX_LISTEN 4
#define LINUX_ACCEPT 5
#define LINUX_GETSOCKNAME 6
#define LINUX_GETPEERNAME 7
#define LINUX_SOCKETPAIR 8
#define LINUX_SEND 9
#define LINUX_RECV 10
#define LINUX_SENDTO 11
#define LINUX_RECVFROM 12
#define LINUX_SHUTDOWN 13
#define LINUX_SETSOCKOPT 14
#define LINUX_GETSOCKOPT 15
#define LINUX_SENDMSG 16
#define LINUX_RECVMSG 17
#define PAD_(t) (sizeof(register_t) <= sizeof(t) ? \
0 : sizeof(register_t) - sizeof(t))
#if BYTE_ORDER == LITTLE_ENDIAN
#define PADL_(t) 0
#define PADR_(t) PAD_(t)
#else
#define PADL_(t) PAD_(t)
#define PADR_(t) 0
#endif
typedef int l_int;
typedef uint32_t l_ulong;
struct linux_socketcall_args {
char what_l_[PADL_(l_int)]; l_int what; char what_r_[PADR_(l_int)];
char args_l_[PADL_(l_ulong)]; l_ulong args; char args_r_[PADR_(l_ulong)];
};
void print_syscall(struct trussinfo *, const char *, int, char **);
void print_syscall_ret(struct trussinfo *, const char *, int, char **, int,
long, struct syscall *);

80
usr.bin/truss/syscalls.c
View File

@ -100,6 +100,10 @@ static struct syscall syscalls[] = {
.args = { { Rforkflags, 0 } } },
{ .name = "getegid", .ret_type = 1, .nargs = 0 },
{ .name = "geteuid", .ret_type = 1, .nargs = 0 },
{ .name = "linux_readlink", .ret_type = 1, .nargs = 3,
.args = { { Name, 0 } , { Name | OUT, 1 }, { Int, 2 }}},
{ .name = "linux_socketcall", .ret_type = 1, .nargs = 2,
.args = { { Int, 0 } , { LinuxSockArgs, 1 }}},
{ .name = "getgid", .ret_type = 1, .nargs = 0 },
{ .name = "getpid", .ret_type = 1, .nargs = 0 },
{ .name = "getpgid", .ret_type = 1, .nargs = 1,
@ -117,6 +121,8 @@ static struct syscall syscalls[] = {
.args = { { Int, 0 }, { Int, 1 }, { Whence, 2 } } },
{ .name = "mmap", .ret_type = 2, .nargs = 6,
.args = { { Ptr, 0 }, { Int, 1 }, { Mprot, 2 }, { Mmapflags, 3 }, { Int, 4 }, { Quad, 5 + QUAD_ALIGN } } },
{ .name = "linux_mkdir", .ret_type = 1, .nargs = 2,
.args = { { Name | IN, 0} , {Int, 1}}},
{ .name = "mprotect", .ret_type = 1, .nargs = 3,
.args = { { Ptr, 0 }, { Int, 1 }, { Mprot, 2 } } },
{ .name = "open", .ret_type = 1, .nargs = 3,
@ -141,6 +147,8 @@ static struct syscall syscalls[] = {
.args = { { Name, 0 }, { Octal, 1 } } },
{ .name = "chown", .ret_type = 0, .nargs = 3,
.args = { { Name, 0 }, { Int, 1 }, { Int, 2 } } },
{ .name = "linux_stat64", .ret_type = 1, .nargs = 3,
.args = { { Name | IN, 0 }, { Ptr | OUT, 1 }, { Ptr | IN, 1 }}},
{ .name = "mount", .ret_type = 0, .nargs = 4,
.args = { { Name, 0 }, { Name, 1 }, { Int, 2 }, { Ptr, 3 } } },
{ .name = "umount", .ret_type = 0, .nargs = 2,
@ -153,6 +161,8 @@ static struct syscall syscalls[] = {
.args = { { Name | IN, 0 }, { Stat | OUT, 1 } } },
{ .name = "linux_newstat", .ret_type = 1, .nargs = 2,
.args = { { Name | IN, 0 }, { Ptr | OUT, 1 } } },
{ .name = "linux_access", .ret_type = 1, .nargs = 2,
.args = { { Name, 0 }, { Int, 1 }}},
{ .name = "linux_newfstat", .ret_type = 1, .nargs = 2,
.args = { { Int, 0 }, { Ptr | OUT, 1 } } },
{ .name = "write", .ret_type = 1, .nargs = 3,
@ -763,6 +773,76 @@ print_arg(struct syscall_args *sc, unsigned long *args, long retval,
asprintf(&tmp, "0x%lx", args[sc->offset]);
break;
}
case LinuxSockArgs:
{
struct linux_socketcall_args largs;
if (get_struct(pid, (void *)args[sc->offset], (void *)&largs,
sizeof(largs)) == -1) {
err(1, "get_struct %p", (void *)args[sc->offset]);
}
const char *what;
char buf[30];
switch (largs.what) {
case LINUX_SOCKET:
what = "LINUX_SOCKET";
break;
case LINUX_BIND:
what = "LINUX_BIND";
break;
case LINUX_CONNECT:
what = "LINUX_CONNECT";
break;
case LINUX_LISTEN:
what = "LINUX_LISTEN";
break;
case LINUX_ACCEPT:
what = "LINUX_ACCEPT";
break;
case LINUX_GETSOCKNAME:
what = "LINUX_GETSOCKNAME";
break;
case LINUX_GETPEERNAME:
what = "LINUX_GETPEERNAME";
break;
case LINUX_SOCKETPAIR:
what = "LINUX_SOCKETPAIR";
break;
case LINUX_SEND:
what = "LINUX_SEND";
break;
case LINUX_RECV:
what = "LINUX_RECV";
break;
case LINUX_SENDTO:
what = "LINUX_SENDTO";
break;
case LINUX_RECVFROM:
what = "LINUX_RECVFROM";
break;
case LINUX_SHUTDOWN:
what = "LINUX_SHUTDOWN";
break;
case LINUX_SETSOCKOPT:
what = "LINUX_SETSOCKOPT";
break;
case LINUX_GETSOCKOPT:
what = "LINUX_GETSOCKOPT";
break;
case LINUX_SENDMSG:
what = "LINUX_SENDMSG";
break;
case LINUX_RECVMSG:
what = "LINUX_RECVMSG";
break;
default:
sprintf(buf, "%d", largs.what);
what = buf;
break;
}
asprintf(&tmp, "(0x%lx)%s, 0x%lx", args[sc->offset], what, (long unsigned int)largs.args);
break;
}
case Pollfd: {
/*
* XXX: A Pollfd argument expects the /next/ syscall argument