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sysdeps/managarm: Implement getsockopt()

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This commit is contained in:
Alexander van der Grinten 2018-05-28 23:38:48 +02:00
parent be4167cd93
commit 4ce89c86d4
3 changed files with 55 additions and 15 deletions
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2
options/internal/include/mlibc/sysdeps.hpp
View file

@ -72,6 +72,8 @@ int sys_epoll_ctl(int epfd, int mode, int fd, struct epoll_event *ev);
int sys_epoll_wait(int epfd, struct epoll_event *evnts, int n, int timeout);
int sys_inotify_create(int flags, int *fd);
int sys_ioctl(int fd, unsigned long request, void *arg);
int sys_getsockopt(int fd, int layer, int number,
void *__restrict buffer, socklen_t *__restrict size);
int sys_setsockopt(int fd, int layer, int number,
const void *buffer, socklen_t size);
int sys_waitpid(pid_t pid, int *status, int flags);

16
options/posix/generic/sys-socket-stubs.cpp
View file

@ -42,21 +42,7 @@ int getsockname(int fd, struct sockaddr *__restrict addr_ptr, socklen_t *__restr
int getsockopt(int fd, int layer, int number,
void *__restrict buffer, socklen_t *__restrict size) {
if(layer == SOL_SOCKET && number == SO_PEERCRED) {
__ensure(*size == sizeof(struct ucred));
frigg::infoLogger() << "\e[31mmlibc: getsockopt(SO_PEERCRED) returns all zeros\e[39m"
<< frigg::endLog;
struct ucred creds;
creds.pid = 0;
creds.uid = 0;
creds.gid = 0;
memcpy(buffer, &creds, sizeof(struct ucred));
return 0;
}else{
frigg::panicLogger() << "\e[31mmlibc: Unexpected getsockopt() call\e[39m" << frigg::endLog;
__builtin_unreachable();
}
return mlibc::sys_getsockopt(fd, layer, number, buffer, size);
}
int listen(int, int) {

52
sysdeps/managarm/generic/socket.cpp
View file

@ -193,6 +193,58 @@ int sys_sockname(int fd, struct sockaddr *addr_ptr, socklen_t max_addr_length,
return 0;
}
int sys_getsockopt(int fd, int layer, int number,
void *__restrict buffer, socklen_t *__restrict size) {
if(layer == SOL_SOCKET && number == SO_PEERCRED) {
__ensure(*size == sizeof(struct ucred));
HelAction actions[3];
globalQueue.trim();
auto handle = cacheFileTable()[fd];
__ensure(handle);
managarm::fs::CntRequest<MemoryAllocator> req(getAllocator());
req.set_req_type(managarm::fs::CntReqType::PT_GET_OPTION);
req.set_command(SO_PEERCRED);
frigg::String<MemoryAllocator> ser(getAllocator());
req.SerializeToString(&ser);
actions[0].type = kHelActionOffer;
actions[0].flags = kHelItemAncillary;
actions[1].type = kHelActionSendFromBuffer;
actions[1].flags = kHelItemChain;
actions[1].buffer = ser.data();
actions[1].length = ser.size();
actions[2].type = kHelActionRecvInline;
actions[2].flags = 0;
HEL_CHECK(helSubmitAsync(handle, actions, 3,
globalQueue.getQueue(), 0, 0));
auto element = globalQueue.dequeueSingle();
auto offer = parseSimple(element);
auto send_req = parseSimple(element);
auto recv_resp = parseInline(element);
HEL_CHECK(offer->error);
HEL_CHECK(send_req->error);
HEL_CHECK(recv_resp->error);
managarm::fs::SvrResponse<MemoryAllocator> resp(getAllocator());
resp.ParseFromArray(recv_resp->data, recv_resp->length);
__ensure(resp.error() == managarm::fs::Errors::SUCCESS);
struct ucred creds;
creds.pid = resp.pid();
creds.uid = resp.uid();
creds.gid = resp.gid();
memcpy(buffer, &creds, sizeof(struct ucred));
return 0;
}else{
frigg::panicLogger() << "\e[31mmlibc: Unexpected getsockopt() call\e[39m" << frigg::endLog;
__builtin_unreachable();
}
}
int sys_setsockopt(int fd, int layer, int number,
const void *buffer, socklen_t size) {
if(layer == SOL_SOCKET && number == SO_PASSCRED) {