diff options
Diffstat (limited to 'libtrivfs')
| -rw-r--r-- | libtrivfs/Makefile | 2 | ||||
| -rw-r--r-- | libtrivfs/priv.c | 61 | ||||
| -rw-r--r-- | libtrivfs/trivfs.h | 48 |
3 files changed, 86 insertions, 25 deletions
diff --git a/libtrivfs/Makefile b/libtrivfs/Makefile index d645a0cd..7dea470a 100644 --- a/libtrivfs/Makefile +++ b/libtrivfs/Makefile @@ -40,7 +40,7 @@ FSYSSRCS=fsys-getroot.c fsys-goaway.c fsys-stubs.c fsys-syncfs.c \ OTHERSRCS=demuxer.c protid-clean.c protid-dup.c cntl-create.c \ cntl-clean.c times.c startup.c make-node.c make-peropen.c open.c \ runtime-argp.c set-options.c append-args.c dyn-classes.c \ - get-source.c + get-source.c priv.c SRCS=$(FSSRCS) $(IOSRCS) $(FSYSSRCS) $(OTHERSRCS) diff --git a/libtrivfs/priv.c b/libtrivfs/priv.c new file mode 100644 index 00000000..ec2bcdfc --- /dev/null +++ b/libtrivfs/priv.c @@ -0,0 +1,61 @@ +/* Default values for weak variables + Copyright (C) 2020 Free Software Foundation, Inc. + + This file is part of the GNU Hurd. + + The GNU Hurd is free software; you can redistribute it and/or + modify it under the terms of the GNU General Public License as + published by the Free Software Foundation; either version 2, or (at + your option) any later version. + + The GNU Hurd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA. */ + + +#include "priv.h" + +error_t (*trivfs_check_access_hook) (struct trivfs_control *cntl, + struct iouser *user, + mach_port_t realnode, + int *allowed) + __attribute__ ((weak)); + +error_t (*trivfs_check_open_hook) (struct trivfs_control *cntl, + struct iouser *user, int flags) + __attribute__ ((weak)); + +error_t (*trivfs_open_hook) (struct trivfs_control *fsys, + struct iouser *user, + mach_port_t dotdot, + int flags, + mach_port_t realnode, + struct trivfs_protid **cred) + __attribute__ ((weak)); + +error_t (*trivfs_protid_create_hook) (struct trivfs_protid *) + __attribute__ ((weak)); + +error_t (*trivfs_peropen_create_hook) (struct trivfs_peropen *) + __attribute__ ((weak)); + +void (*trivfs_protid_destroy_hook) (struct trivfs_protid *) + __attribute__ ((weak)); + +void (*trivfs_peropen_destroy_hook) (struct trivfs_peropen *) + __attribute__ ((weak)); + +error_t (*trivfs_getroot_hook) (struct trivfs_control *cntl, + mach_port_t reply_port, + mach_msg_type_name_t reply_port_type, + mach_port_t dotdot, + uid_t *uids, u_int nuids, uid_t *gids, u_int ngids, + int flags, + retry_type *do_retry, char *retry_name, + mach_port_t *node, mach_msg_type_name_t *node_type) + __attribute__ ((weak)); diff --git a/libtrivfs/trivfs.h b/libtrivfs/trivfs.h index cdb1de8c..c920b678 100644 --- a/libtrivfs/trivfs.h +++ b/libtrivfs/trivfs.h @@ -101,10 +101,10 @@ void trivfs_modify_stat (struct trivfs_protid *cred, io_statbuf_t *); file permits to USER instead of checking the underlying node. REALNODE is the underlying node, and CNTL is the trivfs control object. The access permissions are returned in ALLOWED. */ -error_t (*trivfs_check_access_hook) (struct trivfs_control *cntl, - struct iouser *user, - mach_port_t realnode, - int *allowed); +extern error_t (*trivfs_check_access_hook) (struct trivfs_control *cntl, + struct iouser *user, + mach_port_t realnode, + int *allowed); /* If this variable is set, it is called every time an open happens. USER and FLAGS are from the open; CNTL identifies the @@ -112,45 +112,45 @@ error_t (*trivfs_check_access_hook) (struct trivfs_control *cntl, node. This call can block as necessary, unless O_NONBLOCK is set in FLAGS. Any desired error can be returned, which will be reflected to the user and prevent the open from succeeding. */ -error_t (*trivfs_check_open_hook) (struct trivfs_control *cntl, - struct iouser *user, int flags); +extern error_t (*trivfs_check_open_hook) (struct trivfs_control *cntl, + struct iouser *user, int flags); /* If this variable is set, it is called in place of `trivfs_open' (below). */ -error_t (*trivfs_open_hook) (struct trivfs_control *fsys, - struct iouser *user, - mach_port_t dotdot, - int flags, - mach_port_t realnode, - struct trivfs_protid **cred); +extern error_t (*trivfs_open_hook) (struct trivfs_control *fsys, + struct iouser *user, + mach_port_t dotdot, + int flags, + mach_port_t realnode, + struct trivfs_protid **cred); /* If this variable is set, it is called every time a new protid structure is created and initialized. */ -error_t (*trivfs_protid_create_hook) (struct trivfs_protid *); +extern error_t (*trivfs_protid_create_hook) (struct trivfs_protid *); /* If this variable is set, it is called every time a new peropen structure is created and initialized. */ -error_t (*trivfs_peropen_create_hook) (struct trivfs_peropen *); +extern error_t (*trivfs_peropen_create_hook) (struct trivfs_peropen *); /* If this variable is set, it is called every time a protid structure is about to be destroyed. */ -void (*trivfs_protid_destroy_hook) (struct trivfs_protid *); +extern void (*trivfs_protid_destroy_hook) (struct trivfs_protid *); /* If this variable is set, it is called every time a peropen structure is about to be destroyed. */ -void (*trivfs_peropen_destroy_hook) (struct trivfs_peropen *); +extern void (*trivfs_peropen_destroy_hook) (struct trivfs_peropen *); /* If this variable is set, it is called by trivfs_S_fsys_getroot before any other processing takes place; if the return value is EAGAIN, normal trivfs getroot processing continues, otherwise the rpc returns with that return value. */ -error_t (*trivfs_getroot_hook) (struct trivfs_control *cntl, - mach_port_t reply_port, - mach_msg_type_name_t reply_port_type, - mach_port_t dotdot, - uid_t *uids, u_int nuids, uid_t *gids, u_int ngids, - int flags, - retry_type *do_retry, char *retry_name, - mach_port_t *node, mach_msg_type_name_t *node_type); +extern error_t (*trivfs_getroot_hook) (struct trivfs_control *cntl, + mach_port_t reply_port, + mach_msg_type_name_t reply_port_type, + mach_port_t dotdot, + uid_t *uids, u_int nuids, uid_t *gids, u_int ngids, + int flags, + retry_type *do_retry, char *retry_name, + mach_port_t *node, mach_msg_type_name_t *node_type); /* Creates a control port for this filesystem and sends it to BOOTSTRAP with fsys_startup. CONTROL_CLASS & CONTROL_BUCKET are passed to the ports |