diff options
Diffstat (limited to 'source3/smbd/fake_file.c')
| -rw-r--r-- | source3/smbd/fake_file.c | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/source3/smbd/fake_file.c b/source3/smbd/fake_file.c new file mode 100644 index 0000000000..8dd9abee1a --- /dev/null +++ b/source3/smbd/fake_file.c @@ -0,0 +1,161 @@ +/* + Unix SMB/CIFS implementation. + FAKE FILE suppport, for faking up special files windows want access to + Copyright (C) Stefan (metze) Metzmacher 2003 + + This program 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 3 of the License, or + (at your option) any later version. + + This program 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, see <http://www.gnu.org/licenses/>. +*/ + +#include "includes.h" + +struct fake_file_type { + const char *name; + enum FAKE_FILE_TYPE type; + void *(*init_pd)(TALLOC_CTX *mem_ctx); +}; + +static struct fake_file_type fake_files[] = { +#ifdef WITH_QUOTAS + {FAKE_FILE_NAME_QUOTA_UNIX, FAKE_FILE_TYPE_QUOTA, init_quota_handle}, +#endif /* WITH_QUOTAS */ + {NULL, FAKE_FILE_TYPE_NONE, NULL} +}; + +/**************************************************************************** + Create a fake file handle +****************************************************************************/ + +static struct fake_file_handle *init_fake_file_handle(enum FAKE_FILE_TYPE type) +{ + struct fake_file_handle *fh = NULL; + int i; + + for (i=0; fake_files[i].name!=NULL; i++) { + if (fake_files[i].type==type) { + break; + } + } + + if (fake_files[i].name == NULL) { + return NULL; + } + + DEBUG(5,("init_fake_file_handle: for [%s]\n",fake_files[i].name)); + + fh = talloc(NULL, struct fake_file_handle); + if (fh == NULL) { + DEBUG(0,("TALLOC_ZERO() failed.\n")); + return NULL; + } + + fh->type = type; + + if (fake_files[i].init_pd) { + fh->private_data = fake_files[i].init_pd(fh); + } + return fh; +} + +/**************************************************************************** + Does this name match a fake filename ? +****************************************************************************/ + +enum FAKE_FILE_TYPE is_fake_file(const char *fname) +{ +#ifdef HAVE_SYS_QUOTAS + int i; +#endif + + if (!fname) { + return FAKE_FILE_TYPE_NONE; + } + +#ifdef HAVE_SYS_QUOTAS + for (i=0;fake_files[i].name!=NULL;i++) { + if (strncmp(fname,fake_files[i].name,strlen(fake_files[i].name))==0) { + DEBUG(5,("is_fake_file: [%s] is a fake file\n",fname)); + return fake_files[i].type; + } + } +#endif + + return FAKE_FILE_TYPE_NONE; +} + + +/**************************************************************************** + Open a fake quota file with a share mode. +****************************************************************************/ + +NTSTATUS open_fake_file(connection_struct *conn, + uint16_t current_vuid, + enum FAKE_FILE_TYPE fake_file_type, + const char *fname, + uint32 access_mask, + files_struct **result) +{ + files_struct *fsp = NULL; + NTSTATUS status; + + /* access check */ + if (conn->server_info->utok.uid != 0) { + DEBUG(3, ("open_fake_file_shared: access_denied to " + "service[%s] file[%s] user[%s]\n", + lp_servicename(SNUM(conn)), fname, + conn->server_info->unix_name)); + return NT_STATUS_ACCESS_DENIED; + + } + + status = file_new(conn, &fsp); + if(!NT_STATUS_IS_OK(status)) { + return status; + } + + DEBUG(5,("open_fake_file_shared: fname = %s, FID = %d, access_mask = 0x%x\n", + fname, fsp->fnum, (unsigned int)access_mask)); + + fsp->conn = conn; + fsp->fh->fd = -1; + fsp->vuid = current_vuid; + fsp->fh->pos = -1; + fsp->can_lock = False; /* Should this be true ? - No, JRA */ + fsp->access_mask = access_mask; + string_set(&fsp->fsp_name,fname); + + fsp->fake_file_handle = init_fake_file_handle(fake_file_type); + + if (fsp->fake_file_handle==NULL) { + file_free(fsp); + return NT_STATUS_NO_MEMORY; + } + + conn->num_files_open++; + *result = fsp; + return NT_STATUS_OK; +} + +void destroy_fake_file_handle(struct fake_file_handle **fh) +{ + if (!fh) { + return; + } + TALLOC_FREE(*fh); +} + +NTSTATUS close_fake_file(files_struct *fsp) +{ + file_free(fsp); + return NT_STATUS_OK; +} |