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Cygwin: fhandler_socket: Rearrange methods 

Follow the same pattern in all fhandler_socket classes.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
This commit is contained in:
Corinna Vinschen 2018-02-22 16:54:08 +01:00
parent 9c593d9b39
commit 479080baec
2 changed files with 145 additions and 144 deletions
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73
winsup/cygwin/fhandler.h
View File

@ -499,17 +499,18 @@ class fhandler_socket: public fhandler_base
ret |= SOCK_CLOEXEC;
return ret;
}
protected:
wsa_event *wsock_events;
HANDLE wsock_mtx;
HANDLE wsock_evt;
public:
bool init_events ();
int evaluate_events (const long event_mask, long &events, const bool erase);
const HANDLE wsock_event () const { return wsock_evt; }
const LONG serial_number () const { return wsock_events->serial_number; }
protected:
int wait_for_events (const long event_mask, const DWORD flags);
void release_events ();
public:
const HANDLE wsock_event () const { return wsock_evt; }
int evaluate_events (const long event_mask, long &events, const bool erase);
const LONG serial_number () const { return wsock_events->serial_number; }
protected:
int _rmem;
@ -529,9 +530,6 @@ class fhandler_socket: public fhandler_base
protected:
struct _WSAPROTOCOL_INFOW *prot_info_ptr;
public:
void init_fixup_before ();
bool need_fixup_before () const {return prot_info_ptr != NULL;}
protected:
struct status_flags
@ -573,6 +571,15 @@ class fhandler_socket: public fhandler_base
IMPLEMENT_STATUS_FLAG (conn_state, connect_state)
IMPLEMENT_STATUS_FLAG (bool, no_getpeereid)
bool need_fixup_before () const {return prot_info_ptr != NULL;}
void set_close_on_exec (bool val);
void init_fixup_before ();
int fixup_before_fork_exec (DWORD);
void fixup_after_fork (HANDLE);
void fixup_after_exec ();
int dup (fhandler_base *child, int);
char *get_proc_fd_name (char *buf);
virtual int socket (int af, int type, int protocol, int flags) = 0;
virtual int bind (const struct sockaddr *name, int namelen) = 0;
virtual int listen (int backlog) = 0;
@ -583,12 +590,6 @@ class fhandler_socket: public fhandler_base
virtual int shutdown (int how) = 0;
virtual int close () = 0;
virtual int getpeereid (pid_t *pid, uid_t *euid, gid_t *egid);
virtual int setsockopt (int level, int optname, const void *optval,
__socklen_t optlen) = 0;
virtual int getsockopt (int level, int optname, const void *optval,
__socklen_t *optlen) = 0;
int open (int flags, mode_t mode = 0);
virtual ssize_t recvfrom (void *ptr, size_t len, int flags,
struct sockaddr *from, int *fromlen) = 0;
virtual ssize_t recvmsg (struct msghdr *msg, int flags) = 0;
@ -601,23 +602,28 @@ class fhandler_socket: public fhandler_base
virtual ssize_t sendmsg (const struct msghdr *msg, int flags) = 0;
virtual ssize_t __stdcall write (const void *ptr, size_t len) = 0;
virtual ssize_t __stdcall writev (const struct iovec *, int iovcnt, ssize_t tot = -1) = 0;
virtual int setsockopt (int level, int optname, const void *optval,
__socklen_t optlen) = 0;
virtual int getsockopt (int level, int optname, const void *optval,
__socklen_t *optlen) = 0;
virtual int ioctl (unsigned int cmd, void *);
virtual int fcntl (int cmd, intptr_t);
int open (int flags, mode_t mode = 0);
int __reg2 fstat (struct stat *buf);
int __reg2 fstatvfs (struct statvfs *buf);
int __reg1 fchmod (mode_t newmode);
int __reg2 fchown (uid_t newuid, gid_t newgid);
int __reg3 facl (int, int, struct acl *);
int __reg2 link (const char *);
off_t lseek (off_t, int)
{
set_errno (ESPIPE);
return -1;
}
void hclose (HANDLE) {close ();}
int dup (fhandler_base *child, int);
void set_close_on_exec (bool val);
int fixup_before_fork_exec (DWORD);
void fixup_after_fork (HANDLE);
void fixup_after_exec ();
char *get_proc_fd_name (char *buf);
void hclose (HANDLE) {close ();}
select_record *select_read (select_stuff *);
select_record *select_write (select_stuff *);
@ -626,13 +632,6 @@ class fhandler_socket: public fhandler_base
int get_addr_family () {return addr_family;}
void set_socket_type (int st) { type = st;}
int get_socket_type () {return type;}
int __reg2 fstat (struct stat *buf);
int __reg2 fstatvfs (struct statvfs *buf);
int __reg1 fchmod (mode_t newmode);
int __reg2 fchown (uid_t newuid, gid_t newgid);
int __reg3 facl (int, int, struct acl *);
int __reg2 link (const char *);
};
class fhandler_socket_inet: public fhandler_socket
@ -657,10 +656,6 @@ class fhandler_socket_inet: public fhandler_socket
int getpeername (struct sockaddr *name, int *namelen);
int shutdown (int how);
int close ();
int setsockopt (int level, int optname, const void *optval,
__socklen_t optlen);
int getsockopt (int level, int optname, const void *optval,
__socklen_t *optlen);
ssize_t recvfrom (void *ptr, size_t len, int flags,
struct sockaddr *from, int *fromlen);
ssize_t recvmsg (struct msghdr *msg, int flags);
@ -671,6 +666,11 @@ class fhandler_socket_inet: public fhandler_socket
ssize_t sendmsg (const struct msghdr *msg, int flags);
ssize_t __stdcall write (const void *ptr, size_t len);
ssize_t __stdcall writev (const struct iovec *, int iovcnt, ssize_t tot = -1);
int setsockopt (int level, int optname, const void *optval,
__socklen_t optlen);
int getsockopt (int level, int optname, const void *optval,
__socklen_t *optlen);
int ioctl (unsigned int cmd, void *);
int fcntl (int cmd, intptr_t);
@ -747,10 +747,6 @@ class fhandler_socket_local: public fhandler_socket
int shutdown (int how);
int close ();
int getpeereid (pid_t *pid, uid_t *euid, gid_t *egid);
int setsockopt (int level, int optname, const void *optval,
__socklen_t optlen);
int getsockopt (int level, int optname, const void *optval,
__socklen_t *optlen);
ssize_t recvfrom (void *ptr, size_t len, int flags,
struct sockaddr *from, int *fromlen);
ssize_t recvmsg (struct msghdr *msg, int flags);
@ -761,6 +757,11 @@ class fhandler_socket_local: public fhandler_socket
ssize_t sendmsg (const struct msghdr *msg, int flags);
ssize_t __stdcall write (const void *ptr, size_t len);
ssize_t __stdcall writev (const struct iovec *, int iovcnt, ssize_t tot = -1);
int setsockopt (int level, int optname, const void *optval,
__socklen_t optlen);
int getsockopt (int level, int optname, const void *optval,
__socklen_t *optlen);
int ioctl (unsigned int cmd, void *);
int fcntl (int cmd, intptr_t);

216
winsup/cygwin/fhandler_socket.cc
View File

@ -77,20 +77,6 @@ fhandler_socket::~fhandler_socket ()
cfree (prot_info_ptr);
}
char *
fhandler_socket::get_proc_fd_name (char *buf)
{
__small_sprintf (buf, "socket:[%lu]", get_plain_ino ());
return buf;
}
int
fhandler_socket::open (int flags, mode_t mode)
{
set_errno (ENXIO);
return 0;
}
int
fhandler_socket::set_socket_handle (SOCKET sock, int af, int type, int flags)
{
@ -521,6 +507,20 @@ fhandler_socket::release_events ()
}
}
void
fhandler_socket::set_close_on_exec (bool val)
{
set_no_inheritance (wsock_mtx, val);
set_no_inheritance (wsock_evt, val);
if (need_fixup_before ())
{
close_on_exec (val);
debug_printf ("set close_on_exec for %s to %d", get_name (), val);
}
else
fhandler_base::set_close_on_exec (val);
}
/* Called if a freshly created socket is not inheritable. In that case we
have to use fixup_before_fork_exec. See comment in set_socket_handle for
a description of the problem. */
@ -629,97 +629,20 @@ fhandler_socket::dup (fhandler_base *child, int flags)
return -1;
}
int __reg2
fhandler_socket::fstat (struct stat *buf)
char *
fhandler_socket::get_proc_fd_name (char *buf)
{
int res;
res = fhandler_socket::fstat (buf);
if (!res)
{
buf->st_dev = FHDEV (DEV_TCP_MAJOR, 0);
if (!(buf->st_ino = get_plain_ino ()))
sscanf (get_name (), "/proc/%*d/fd/socket:[%lld]",
(long long *) &buf->st_ino);
buf->st_uid = uid;
buf->st_gid = gid;
buf->st_mode = mode;
buf->st_size = 0;
}
return res;
}
int __reg2
fhandler_socket::fstatvfs (struct statvfs *sfs)
{
memset (sfs, 0, sizeof (*sfs));
sfs->f_bsize = sfs->f_frsize = 4096;
sfs->f_namemax = NAME_MAX;
return 0;
__small_sprintf (buf, "socket:[%lu]", get_plain_ino ());
return buf;
}
int
fhandler_socket::fchmod (mode_t newmode)
fhandler_socket::getpeereid (pid_t *pid, uid_t *euid, gid_t *egid)
{
mode = (newmode & ~S_IFMT) | S_IFSOCK;
return 0;
}
int
fhandler_socket::fchown (uid_t newuid, gid_t newgid)
{
bool perms = check_token_membership (&well_known_admins_sid);
/* Admin rulez */
if (!perms)
{
/* Otherwise, new uid == old uid or current uid is fine */
if (newuid == ILLEGAL_UID || newuid == uid || newuid == myself->uid)
perms = true;
/* Otherwise, new gid == old gid or current gid is fine */
else if (newgid == ILLEGAL_GID || newgid == gid || newgid == myself->gid)
perms = true;
else
{
/* Last but not least, newgid in supplementary group list is fine */
tmp_pathbuf tp;
gid_t *gids = (gid_t *) tp.w_get ();
int num = getgroups (65536 / sizeof (*gids), gids);
for (int idx = 0; idx < num; ++idx)
if (newgid == gids[idx])
{
perms = true;
break;
}
}
}
if (perms)
{
if (newuid != ILLEGAL_UID)
uid = newuid;
if (newgid != ILLEGAL_GID)
gid = newgid;
return 0;
}
set_errno (EPERM);
set_errno (EINVAL);
return -1;
}
int
fhandler_socket::facl (int cmd, int nentries, aclent_t *aclbufp)
{
set_errno (EOPNOTSUPP);
return -1;
}
int
fhandler_socket::link (const char *newpath)
{
return fhandler_base::link (newpath);
}
/* Definitions of old ifreq stuff used prior to Cygwin 1.7.0. */
#define OLD_SIOCGIFFLAGS _IOW('s', 101, struct __old_ifreq)
#define OLD_SIOCGIFADDR _IOW('s', 102, struct __old_ifreq)
@ -933,23 +856,100 @@ fhandler_socket::fcntl (int cmd, intptr_t arg)
return res;
}
void
fhandler_socket::set_close_on_exec (bool val)
int
fhandler_socket::open (int flags, mode_t mode)
{
set_no_inheritance (wsock_mtx, val);
set_no_inheritance (wsock_evt, val);
if (need_fixup_before ())
set_errno (ENXIO);
return 0;
}
int __reg2
fhandler_socket::fstat (struct stat *buf)
{
int res;
res = fhandler_socket::fstat (buf);
if (!res)
{
close_on_exec (val);
debug_printf ("set close_on_exec for %s to %d", get_name (), val);
buf->st_dev = FHDEV (DEV_TCP_MAJOR, 0);
if (!(buf->st_ino = get_plain_ino ()))
sscanf (get_name (), "/proc/%*d/fd/socket:[%lld]",
(long long *) &buf->st_ino);
buf->st_uid = uid;
buf->st_gid = gid;
buf->st_mode = mode;
buf->st_size = 0;
}
else
fhandler_base::set_close_on_exec (val);
return res;
}
int __reg2
fhandler_socket::fstatvfs (struct statvfs *sfs)
{
memset (sfs, 0, sizeof (*sfs));
sfs->f_bsize = sfs->f_frsize = 4096;
sfs->f_namemax = NAME_MAX;
return 0;
}
int
fhandler_socket::getpeereid (pid_t *pid, uid_t *euid, gid_t *egid)
fhandler_socket::fchmod (mode_t newmode)
{
set_errno (EINVAL);
mode = (newmode & ~S_IFMT) | S_IFSOCK;
return 0;
}
int
fhandler_socket::fchown (uid_t newuid, gid_t newgid)
{
bool perms = check_token_membership (&well_known_admins_sid);
/* Admin rulez */
if (!perms)
{
/* Otherwise, new uid == old uid or current uid is fine */
if (newuid == ILLEGAL_UID || newuid == uid || newuid == myself->uid)
perms = true;
/* Otherwise, new gid == old gid or current gid is fine */
else if (newgid == ILLEGAL_GID || newgid == gid || newgid == myself->gid)
perms = true;
else
{
/* Last but not least, newgid in supplementary group list is fine */
tmp_pathbuf tp;
gid_t *gids = (gid_t *) tp.w_get ();
int num = getgroups (65536 / sizeof (*gids), gids);
for (int idx = 0; idx < num; ++idx)
if (newgid == gids[idx])
{
perms = true;
break;
}
}
}
if (perms)
{
if (newuid != ILLEGAL_UID)
uid = newuid;
if (newgid != ILLEGAL_GID)
gid = newgid;
return 0;
}
set_errno (EPERM);
return -1;
}
int
fhandler_socket::facl (int cmd, int nentries, aclent_t *aclbufp)
{
set_errno (EOPNOTSUPP);
return -1;
}
int
fhandler_socket::link (const char *newpath)
{
return fhandler_base::link (newpath);
}