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https://github.com/genodelabs/genode.git
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2312ad35dd
There is a type mismatch as in the FreeBSD contrib code the type of the request is 'unsigned long'. So far, only I/O controls where the request falls into the signed range where used and this was not a problem. Some of the SNDCTL requests, however, have the bit set. Fixes #3887.
152 lines
5.9 KiB
C++
152 lines
5.9 KiB
C++
/*
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* \brief plugin interface
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* \author Christian Prochaska
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* \date 2010-01-21
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*/
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/*
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* Copyright (C) 2010-2017 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU Affero General Public License version 3.
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*/
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#ifndef _LIBC_PLUGIN__PLUGIN_H_
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#define _LIBC_PLUGIN__PLUGIN_H_
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#include <os/path.h>
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#include <base/exception.h>
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#include <util/list.h>
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#include <netdb.h>
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#include <sys/select.h>
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#include <sys/socket.h>
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#include <sys/stat.h>
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#include <sys/mount.h> /* for 'struct statfs' */
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#include <sys/poll.h> /* for 'struct pollfd' */
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namespace Genode { class Env; }
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namespace Libc {
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using namespace Genode;
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class File_descriptor;
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typedef Genode::Path<PATH_MAX> Absolute_path;
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class Symlink_resolve_error : Genode::Exception { };
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void resolve_symlinks(char const *path, Absolute_path &resolved_path);
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class Plugin : public List<Plugin>::Element
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{
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protected:
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int _priority;
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typedef Genode::size_t size_t;
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/* Resume all libc threads blocked for I/O */
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void resume_all();
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public:
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Plugin(int priority = 0);
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virtual ~Plugin();
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virtual int priority();
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virtual bool supports_access(char const *path, int amode);
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virtual bool supports_mkdir(const char *path, mode_t mode);
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virtual bool supports_open(const char *pathname, int flags);
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virtual bool supports_pipe();
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virtual bool supports_poll();
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virtual bool supports_readlink(const char *path, char *buf, ::size_t bufsiz);
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virtual bool supports_rename(const char *oldpath, const char *newpath);
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virtual bool supports_rmdir(const char *path);
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virtual bool supports_select(int nfds,
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fd_set *readfds,
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fd_set *writefds,
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fd_set *exceptfds,
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struct timeval *timeout);
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virtual bool supports_socket(int domain, int type, int protocol);
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virtual bool supports_stat(const char *path);
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virtual bool supports_symlink(const char *oldpath, const char *newpath);
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virtual bool supports_unlink(const char *path);
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virtual bool supports_mmap();
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/*
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* Should be overwritten for plugins that require the Genode environment
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*/
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virtual void init(Genode::Env &env) { }
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virtual File_descriptor *accept(File_descriptor *,
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struct ::sockaddr *addr,
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socklen_t *addrlen);
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virtual int access(char const *, int);
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virtual int bind(File_descriptor *,
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const struct ::sockaddr *addr,
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socklen_t addrlen);
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virtual int close(File_descriptor *fd);
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virtual int connect(File_descriptor *,
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const struct ::sockaddr *addr,
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socklen_t addrlen);
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virtual File_descriptor *dup(File_descriptor*);
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virtual int dup2(File_descriptor *, File_descriptor *new_fd);
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virtual int fstatfs(File_descriptor *, struct statfs *buf);
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virtual int fcntl(File_descriptor *, int cmd, long arg);
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virtual int fstat(File_descriptor *, struct stat *buf);
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virtual int fsync(File_descriptor *);
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virtual int ftruncate(File_descriptor *, ::off_t length);
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virtual ssize_t getdirentries(File_descriptor *, char *buf,
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::size_t nbytes, ::off_t *basep);
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virtual int getpeername(File_descriptor *,
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struct sockaddr *addr,
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socklen_t *addrlen);
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virtual int getsockname(File_descriptor *,
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struct sockaddr *addr,
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socklen_t *addrlen);
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virtual int getsockopt(File_descriptor *, int level,
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int optname, void *optval,
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socklen_t *optlen);
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virtual int ioctl(File_descriptor *, unsigned long request, char *argp);
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virtual int listen(File_descriptor *, int backlog);
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virtual ::off_t lseek(File_descriptor *, ::off_t offset, int whence);
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virtual int mkdir(const char *pathname, mode_t mode);
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virtual void *mmap(void *addr, ::size_t length, int prot, int flags,
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File_descriptor *, ::off_t offset);
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virtual int munmap(void *addr, ::size_t length);
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virtual int msync(void *addr, ::size_t len, int flags);
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virtual File_descriptor *open(const char *pathname, int flags);
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virtual int pipe(File_descriptor *pipefd[2]);
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virtual bool poll(File_descriptor&, struct pollfd &pfd);
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virtual ssize_t read(File_descriptor *, void *buf, ::size_t count);
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virtual ssize_t readlink(const char *path, char *buf, ::size_t bufsiz);
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virtual ssize_t recv(File_descriptor *, void *buf, ::size_t len, int flags);
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virtual ssize_t recvfrom(File_descriptor *, void *buf, ::size_t len, int flags,
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struct sockaddr *src_addr, socklen_t *addrlen);
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virtual ssize_t recvmsg(File_descriptor *, struct msghdr *msg, int flags);
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virtual int rename(const char *oldpath, const char *newpath);
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virtual int rmdir(const char *pathname);
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virtual int select(int nfds, fd_set *readfds, fd_set *writefds,
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fd_set *exceptfds, struct timeval *timeout);
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virtual ssize_t send(File_descriptor *, const void *buf, ::size_t len, int flags);
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virtual ssize_t sendto(File_descriptor *, const void *buf,
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::size_t len, int flags,
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const struct sockaddr *dest_addr,
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socklen_t addrlen);
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virtual int setsockopt(File_descriptor *, int level,
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int optname, const void *optval,
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socklen_t optlen);
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virtual int shutdown(File_descriptor *, int how);
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virtual File_descriptor *socket(int domain, int type, int protocol);
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virtual int stat(const char *path, struct stat *buf);
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virtual int symlink(const char *oldpath, const char *newpath);
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virtual int unlink(const char *path);
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virtual ssize_t write(File_descriptor *, const void *buf, ::size_t count);
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};
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}
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#endif /* _LIBC_PLUGIN__PLUGIN_H_ */
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