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strace: more syscall groupings from the real strace

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This commit is contained in:
K. Lange 2021-09-24 10:21:37 +09:00
parent 25de8c58bc
commit 5825bf0c9e
1 changed files with 63 additions and 6 deletions
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69
apps/strace.c
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@ -561,6 +561,14 @@ static void struct_timeval_arg(pid_t pid, uintptr_t ptr) {
fprintf(logfile, "}");
}
static void signal_arg(int signum) {
if (signum >= 0 && signum < 256) {
fprintf(logfile, "%s", signal_names[signum]);
} else {
fprintf(logfile, "%d", signum);
}
}
static void handle_syscall(pid_t pid, struct regs * r) {
if (r->rax >= sizeof(syscall_mask)) return;
if (!syscall_mask[r->rax]) return;
@ -671,7 +679,7 @@ static void handle_syscall(pid_t pid, struct regs * r) {
string_arg(pid, r->rbx);
break;
case SYS_SIGNAL:
int_arg(r->rbx); COMMA; /* TODO signal name */
signal_arg(r->rbx); COMMA;
pointer_arg(r->rcx);
break;
case SYS_SYSFUNC:
@ -858,11 +866,60 @@ int main(int argc, char * argv[]) {
}
} else if (!strcmp(option+1,"file")) {
int syscalls[] = {
SYS_OPEN, SYS_READ, SYS_WRITE, SYS_CLOSE, SYS_SEEK,
SYS_STAT, SYS_READDIR, SYS_CHDIR, SYS_GETCWD, SYS_MKDIR,
SYS_IOCTL, SYS_ACCESS, SYS_STATF, SYS_CHMOD, SYS_UNLINK,
SYS_SYMLINK, SYS_READLINK, SYS_LSTAT, SYS_CHOWN, SYS_DUP2,
SYS_PIPE, SYS_OPENPTY,
SYS_OPEN, SYS_STATF, SYS_LSTAT, SYS_ACCESS, SYS_EXECVE,
SYS_GETCWD, SYS_CHDIR, SYS_MKDIR, SYS_SYMLINK, SYS_UNLINK,
SYS_CHMOD, SYS_CHOWN, SYS_MOUNT, SYS_READLINK,
0
};
for (int *i = syscalls; *i; i++) {
syscall_mask[*i] = 1;
}
} else if (!strcmp(option+1,"desc")) {
int syscalls[] = {
SYS_OPEN, SYS_READ, SYS_WRITE, SYS_CLOSE, SYS_STAT, SYS_FSWAIT,
SYS_FSWAIT2, SYS_FSWAIT3, SYS_SEEK, SYS_IOCTL, SYS_PIPE, SYS_MKPIPE,
SYS_DUP2, SYS_READDIR, SYS_OPENPTY,
0
};
for (int *i = syscalls; *i; i++) {
syscall_mask[*i] = 1;
}
} else if (!strcmp(option+1,"memory")) {
int syscalls[] = {
SYS_SBRK, SYS_SHM_OBTAIN, SYS_SHM_RELEASE,
0
};
for (int *i = syscalls; *i; i++) {
syscall_mask[*i] = 1;
}
} else if (!strcmp(option+1,"ipc")) {
int syscalls[] = {
SYS_SHM_OBTAIN, SYS_SHM_RELEASE,
0
};
for (int *i = syscalls; *i; i++) {
syscall_mask[*i] = 1;
}
} else if (!strcmp(option+1,"signal")) {
int syscalls[] = {
SYS_SIGNAL, SYS_KILL,
0
};
for (int *i = syscalls; *i; i++) {
syscall_mask[*i] = 1;
}
} else if (!strcmp(option+1,"process")) {
int syscalls[] = {
SYS_EXT, SYS_EXECVE, SYS_FORK, SYS_CLONE, SYS_WAITPID, SYS_KILL,
0
};
for (int *i = syscalls; *i; i++) {
syscall_mask[*i] = 1;
}
} else if (!strcmp(option+1,"creds")) {
int syscalls[] = {
SYS_GETUID, SYS_GETGID, SYS_GETGROUPS, SYS_GETEGID, SYS_GETEUID,
SYS_SETUID, SYS_SETGID, SYS_SETGROUPS,
0
};
for (int *i = syscalls; *i; i++) {