diff options
Diffstat (limited to 'source3/smbd/open.c')
| -rw-r--r-- | source3/smbd/open.c | 68 |
1 files changed, 41 insertions, 27 deletions
diff --git a/source3/smbd/open.c b/source3/smbd/open.c index ad208005a0..7558954ec6 100644 --- a/source3/smbd/open.c +++ b/source3/smbd/open.c @@ -620,34 +620,50 @@ enum {AFAIL,AREAD,AWRITE,AALL}; /******************************************************************* reproduce the share mode access table ********************************************************************/ - static int access_table(int new_deny,int old_deny,int old_mode, pid_t share_pid,char *fname) { if (new_deny == DENY_ALL || old_deny == DENY_ALL) return(AFAIL); - if (new_deny == DENY_DOS || old_deny == DENY_DOS) { - pid_t pid = getpid(); - if (old_deny == new_deny && share_pid == pid) - return(AALL); - - /* the new smbpub.zip spec says that if the file extension is - .com, .dll, .exe or .sym then allow the open. I will force - it to read-only as this seems sensible although the spec is - a little unclear on this. */ - if ((fname = strrchr(fname,'.'))) { - if (strequal(fname,".com") || - strequal(fname,".dll") || - strequal(fname,".exe") || - strequal(fname,".sym")) - return(AALL); - } - - if (old_deny == DENY_READ || new_deny == DENY_READ) return AFAIL; - if (old_mode == DOS_OPEN_RDONLY) return(AREAD); - - - return(AFAIL); + if (old_deny == DENY_DOS || new_deny == DENY_DOS || + old_deny == DENY_FCB || new_deny == DENY_FCB) { + if ((fname = strrchr(fname,'.'))) { + if (strequal(fname,".com") || + strequal(fname,".dll") || + strequal(fname,".exe") || + strequal(fname,".sym")) { + if (old_deny == DENY_FCB || new_deny == DENY_FCB) { + return AFAIL; + } + if (old_deny == DENY_DOS) { + if (new_deny == DENY_READ && + (old_mode == DOS_OPEN_RDONLY || + old_mode == DOS_OPEN_RDWR)) { + return AFAIL; + } + if (new_deny == DENY_WRITE && + (old_mode == DOS_OPEN_WRONLY || + old_mode == DOS_OPEN_RDWR)) { + return AFAIL; + } + return AALL; + } + if (old_deny == DENY_NONE) return AALL; + if (old_deny == DENY_READ) return AWRITE; + if (old_deny == DENY_WRITE) return AREAD; + } + } + /* it isn't a exe, dll, sym or com file */ + { + pid_t pid = getpid(); + if (old_deny == new_deny && share_pid == pid) + return(AALL); + + if (old_deny == DENY_READ || new_deny == DENY_READ) return AFAIL; + if (old_mode == DOS_OPEN_RDONLY) return(AREAD); + + return(AFAIL); + } } switch (new_deny) @@ -848,9 +864,6 @@ void open_file_shared(files_struct *fsp,connection_struct *conn,char *fname,int return; } - if (deny_mode == DENY_FCB) - deny_mode = DENY_DOS; - if (lp_share_modes(SNUM(conn))) { int i; @@ -1338,7 +1351,8 @@ dev = %x, inode = %.0f\n", old_shares[i].op_type, fname, (unsigned int)dev, (dou * if we can too. */ - if ((GET_DENY_MODE(share_entry->share_mode) != DENY_DOS) || (share_entry->pid != pid)) + if ((GET_DENY_MODE(share_entry->share_mode) != DENY_DOS) || + (share_entry->pid != pid)) goto free_and_exit; } /* end for */ |