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freebsd-dev/usr.sbin/ppp/id.h

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Add (BSD) copyright headers.
1997-12-21 12:11:13 +00:00
/*-
* Copyright (c) 1997 Brian Somers <brian@Awfulhak.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
$Id$ -> $FreeBSD$
1999-08-28 01:35:59 +00:00
* $FreeBSD$
Introduce ID0 logging. Stay as the invoking uid as much as possible. Execution as a normal user is still forbidden for now, so these changes are pretty ineffective. The next commit will implement the modifications suggested on -hackers a number of days ago.
1997-11-09 06:22:49 +00:00
*/
Make -DNOSUID (or -DPPP_NOSUID) possible to build ppp without SUID capabilities.
2000-08-18 00:01:44 +00:00
#ifndef NOSUID
MFMP: Allow 8 character login names. Do the login()/logwtmp()/logout() as id 0.
1998-02-19 02:10:13 +00:00
struct utmp;
o Add the link name to modem diagnostics. o Create struct mpserver as part of struct mp. mpserver creates a unix-domain socket based on the peers auth name and endpoint discriminator. If it already exists, ppp will ``pass the link'' over to the owner of the socket, joining it into the bundle of another ppp invocation, otherwise ppp waits for other invocations to pass it links through this socket. The final piece of code will be the code that flattens our datalink info and passes it down this channel (not yet implemented).
1998-04-28 01:25:46 +00:00
struct sockaddr_un;
MFMP: Allow 8 character login names. Do the login()/logwtmp()/logout() as id 0.
1998-02-19 02:10:13 +00:00
Introduce ID0 logging. Stay as the invoking uid as much as possible. Execution as a normal user is still forbidden for now, so these changes are pretty ineffective. The next commit will implement the modifications suggested on -hackers a number of days ago.
1997-11-09 06:22:49 +00:00
extern void ID0init(void);
extern uid_t ID0realuid(void);
extern int ID0ioctl(int, unsigned long, void *);
extern int ID0unlink(const char *);
extern int ID0socket(int, int, int);
extern FILE *ID0fopen(const char *, const char *);
Support client side DNS server negotiation, disabled and denied by default (POLA). o Remove ``enable'' msext. Now, doing a ``set nbns'' will automatically enable a NBNS ACK/NAK rather than a REJ. o Add accept|disable|deny|enable dns. If we ``accept'', we'll tell the peer what our nameservers are (if he asks). The values in resolv.conf can be overridden with the ``set dns'' command. If we ``enable'', we'll REQ using our resolv.conf entries, and any NAKs are written back to resolv.conf. o Remove ``show msext'' and show the relevent IP numbers in ``show ipcp''.
1998-04-17 22:05:37 +00:00
extern int ID0open(const char *, int, ...);
Write to the routing socket as uid 0. It's not good enough to just open it as uid 0 under OpenBSD.
1997-12-27 19:23:13 +00:00
extern int ID0write(int, const void *, size_t);
Introduce ID0 logging. Stay as the invoking uid as much as possible. Execution as a normal user is still forbidden for now, so these changes are pretty ineffective. The next commit will implement the modifications suggested on -hackers a number of days ago.
1997-11-09 06:22:49 +00:00
extern int ID0uu_lock(const char *);
o Don't forget to close our transfer socket if we cannot generate the data to transfer. o Transfer uucp lock ownership for the transferred device. o Don't assume we know the correct values of dev_is_modem and mbits after the transfer.
1998-05-28 23:15:40 +00:00
extern int ID0uu_lock_txfr(const char *, pid_t);
Introduce ID0 logging. Stay as the invoking uid as much as possible. Execution as a normal user is still forbidden for now, so these changes are pretty ineffective. The next commit will implement the modifications suggested on -hackers a number of days ago.
1997-11-09 06:22:49 +00:00
extern int ID0uu_unlock(const char *);
MFMP: Allow 8 character login names. Do the login()/logwtmp()/logout() as id 0.
1998-02-19 02:10:13 +00:00
extern void ID0login(struct utmp *);
Don't (unnecessarily) parse wtmp, force ID0logout() to DTRT instead.
1999-10-25 13:31:42 +00:00
extern void ID0logout(const char *, int);
o Create a new ``timer'' log level. This lets us ``set log debug'' without filling our filesystem/screen with junk that we don't really want to see. o change PHYS_STDIN to PHYS_DIRECT - we can handle incoming connections that aren't on STDIN_FILENO now. o Allow return values from our FSM LayerUp functions. If LayerUp() fails, the FSM does an immediate FsmDown() without calling the fsm_parent's Layer{Up,Down} functions. o Clear the close-on-exec flag of file descriptor 3 when executing chat programs so that our documented ability to communicate with /dev/tty via that descriptor works. Also document it as descriptor 3, not 4 :-O o Allow a ``rm'' command as an alias for ``remove''. o Fix the bind()/connect()/accept() calls made by the MP server. o Create bundle_SendDatalink() and bundle_ReceiveDatalink(). This allows `struct datalink's to flatten themselves, pass through a pipe (read: the eye of a needle !) and come alive at the other end. The donator then fork()s & exec()s pppmpipe, ``passing'' the connection to another ppp instance. *** PPP NOW TALKS MULTILINK :-))) *** Our link utilization is hideous, and lots of code needs tidying still. It's also probably riddled with bugs ! It's been tested against itself only, and has hung once, so confidence isn't high....
1998-04-30 23:53:56 +00:00
extern int ID0bind_un(int, const struct sockaddr_un *);
extern int ID0connect_un(int, const struct sockaddr_un *);
o If there's a session leader left running for a descriptor that we're now closing, manually HUP that session leader so that the tty is fully released. o Always restart our carrier detect timer in the receiving process if it was running in the sending process (as we now *always* pass the descriptor). o Tweak argv when we go into pause() mode to keep our session so that ps can see what's going on (without checking for a `pause' state in `ps -l').
1998-05-29 18:33:10 +00:00
extern int ID0kill(pid_t, int);
Use modfind() to check if a kld is already loaded. Submitted mostly by: green
1999-11-16 21:57:34 +00:00
#if defined(__FreeBSD__) && !defined(NOKLDLOAD)
Do a kldload() if we get ENXIO trying to open /dev/tun0 Originally submitted by: green
1999-09-22 00:40:47 +00:00
extern int ID0kldload(const char *);
#endif
Call MkSockNode() as uid 0 Forgotten by: julian
1999-11-21 23:27:23 +00:00
#ifndef NONETGRAPH
extern int ID0NgMkSockNode(const char *, int *, int *);
#endif
Make -DNOSUID (or -DPPP_NOSUID) possible to build ppp without SUID capabilities.
2000-08-18 00:01:44 +00:00
#else /* NOSUID */
#define ID0init()
#define ID0realuid() (0)
#define ID0ioctl ioctl
#define ID0unlink unlink
#define ID0socket socket
#define ID0fopen fopen
#define ID0open open
#define ID0write write
#define ID0uu_lock uu_lock
#define ID0uu_lock_txfr uu_lock_txfr
#define ID0uu_unlock uu_unlock
#define ID0login(u) \
do { \
if (logout((u)->ut_line)) \
logwtmp((u)->ut_line, "", ""); \
login(u); \
} while (0)
#define ID0logout(dev, no) \
do { \
struct utmp ut; \
strncpy(ut.ut_line, dev, sizeof ut.ut_line - 1); \
ut.ut_line[sizeof ut.ut_line - 1] = '\0'; \
if (no || logout(ut.ut_line)) \
logwtmp(ut.ut_line, "", ""); \
} while (0)
#define ID0bind_un(s, n) bind(s, (const struct sockaddr *)(n), sizeof *(n))
#define ID0connect_un(s, n) \
connect(s, (const struct sockaddr *)(n), sizeof *(n))
#define ID0kill kill
#if defined(__FreeBSD__) && !defined(NOKLDLOAD)
#define ID0kldload kldload
#endif
#ifndef NONETGRAPH
#define ID0NgMkSockNode NgMkSockNode
#endif
#endif
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