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UserspaceEmulator: Implement geteuid, getegid, ptsname syscalls

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This commit is contained in:
Brendan Coles 2020-12-16 22:53:00 +00:00 • committed by Andreas Kling
parent c4176b0da1
commit c8fb00fe4d
2 changed files with 25 additions and 0 deletions
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22
DevTools/UserspaceEmulator/Emulator.cpp
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@ -408,8 +408,12 @@ u32 Emulator::virt_syscall(u32 function, u32 arg1, u32 arg2, u32 arg3)
return virt$unveil(arg1);
case SC_getuid:
return virt$getuid();
case SC_geteuid:
return virt$geteuid();
case SC_getgid:
return virt$getgid();
case SC_getegid:
return virt$getegid();
case SC_setuid:
return virt$setuid(arg1);
case SC_setgid:
@ -505,6 +509,8 @@ u32 Emulator::virt_syscall(u32 function, u32 arg1, u32 arg2, u32 arg3)
return virt$clock_nanosleep(arg1);
case SC_readlink:
return virt$readlink(arg1);
case SC_ptsname:
return virt$ptsname(arg1, arg2, arg3);
case SC_allocate_tls:
return virt$allocate_tls(arg1);
case SC_beep:
@ -1061,11 +1067,21 @@ uid_t Emulator::virt$getuid()
return getuid();
}
uid_t Emulator::virt$geteuid()
{
return geteuid();
}
gid_t Emulator::virt$getgid()
{
return getgid();
}
gid_t Emulator::virt$getegid()
{
return getegid();
}
int Emulator::virt$setuid(uid_t uid)
{
return syscall(SC_setuid, uid);
@ -1690,6 +1706,12 @@ u32 Emulator::virt$allocate_tls(size_t size)
return tls_base;
}
int Emulator::virt$ptsname(int fd, FlatPtr buffer, size_t buffer_size)
{
auto pts = mmu().copy_buffer_from_vm(buffer, buffer_size);
return syscall(SC_ptsname, fd, pts.data(), pts.size());
}
int Emulator::virt$beep()
{
return syscall(SC_beep);

3
DevTools/UserspaceEmulator/Emulator.h
View file

@ -105,7 +105,9 @@ private:
u32 virt$unveil(u32);
u32 virt$pledge(u32);
uid_t virt$getuid();
uid_t virt$geteuid();
gid_t virt$getgid();
gid_t virt$getegid();
int virt$setuid(uid_t);
int virt$setgid(gid_t);
u32 virt$read(int, FlatPtr, ssize_t);
@ -163,6 +165,7 @@ private:
int virt$watch_file(FlatPtr, size_t);
int virt$readlink(FlatPtr);
u32 virt$allocate_tls(size_t);
int virt$ptsname(int fd, FlatPtr buffer, size_t buffer_size);
int virt$beep();
FlatPtr allocate_vm(size_t size, size_t alignment);