The source address or output interface can be specified by adding IP_PKTINFO
to the control part of the message on a SOCK_DGRAM or SOCK_RAW socket.
Reviewed by ozaki-r@ and christos@. thanks.
- Don't hold softnet_lock in some functions if NET_MPSAFE
- Add softnet_lock to sysctl_net_inet_icmp_redirtimeout
- Add softnet_lock to expire_upcalls of ip_mroute.c
- Restore softnet_lock for in{,6}_pcbpurgeif{,0} if NET_MPSAFE
- Mark some softnet_lock for future work
This change makes struct ifaddr and its variants (in_ifaddr and in6_ifaddr)
MP-safe by using pserialize and psref. At this moment, pserialize_perform
and psref_target_destroy are disabled because (1) we don't need them
because of softnet_lock (2) they cause a deadlock because of softnet_lock.
So we'll enable them when we remove softnet_lock in the future.
The change ensures that ifnet objects in the ifnet list aren't freed during
list iterations by using pserialize(9) and psref(9).
Note that the change adds a pslist(9) for ifnet but doesn't remove the
original ifnet list (ifnet_list) to avoid breaking kvm(3) users. We
shouldn't use the original list in the kernel anymore.
nam parameter type from buf * to sockaddr *.
final commit for parameter type changes to protocol user requests
* bump kernel version to 7.99.15 for parameter type changes to pr_{send,connect}
IN_IFF_DETATCHED to mimic the IPv6 address behaviour.
Add SIOCGIFAFLAG_IN ioctl to retrieve the address flag via the
ifreq structure.
Add IPv4 DAD detection via the ARP methods described in RFC 5227.
Add sysctls net.inet.ip.dad_count and net.inet.arp.debug.
Discussed on tech-net@
make rip_connect_pcb static since it appears to be used only in raw_ip.c
moves m_len check to callers which is a small duplication of code
that will go away when the callers are converted to receive sockaddr *.
pr_{accept,sockname,peername} nam parameter type from mbuf * to sockaddr *.
* retained use of mbuftypes[MT_SONAME] for now.
* bump to netbsd version 7.99.12 for parameter type change.
patch posted to tech-net@ 2015/04/19
* update protocol bind implementations to use/expect sockaddr *
instead of mbuf *
* introduce sockaddr_big struct for storage of addr data passed via
sys_bind; sockaddr_big is of sufficient size and alignment to
accommodate all addr data sizes received.
* modify sys_bind to allocate sockaddr_big instead of using an mbuf.
* bump kernel version to 7.99.9 for change to pr_bind() parameter type.
Patch posted to tech-net@
http://mail-index.netbsd.org/tech-net/2015/03/15/msg005004.html
The choice to use a new structure sockaddr_big has been retained since
changing sockaddr_storage size would lead to unnecessary ABI change. The
use of the new structure does not preclude future work that increases
the size of sockaddr_storage and at that time sockaddr_big may be
trivially replaced.
Tested by mrg@ and myself, discussed with rmind@, posted to tech-net@
switches and put into separate functions
- always KASSERT(solocked(so)) even if not implemented
(for PRU_CONNECT2 only)
- replace calls to pr_generic() with req = PRU_CONNECT2 with calls to
pr_connect2()
- replace calls to pr_generic() with req = PRU_PURGEIF with calls to
pr_purgeif()
put common code from unp_connect2() (used by unp_connect() into
unp_connect1() and call out to it when needed
patch only briefly reviewed by rmind@
separate functions
xxx_send(struct socket *, struct mbuf *, struct mbuf *,
struct mbuf *, struct lwp *)
- always KASSERT(solocked(so)) even if not implemented
- replace calls to pr_generic() with req = PRU_SEND with calls to
pr_send()
rename existing functions that operate on PCB for consistency (and to
free up their names for xxx_send() PRUs
- l2cap_send() -> l2cap_send_pcb()
- sco_send() -> sco_send_pcb()
- rfcomm_send() -> rfcomm_send_pcb()
patch reviewed by rmind
pr_generic() usrreq switches and put into separate functions
xxx_disconnect(struct socket *)
xxx_shutdown(struct socket *)
xxx_abort(struct socket *)
- always KASSERT(solocked(so)) even if not implemented
- replace calls to pr_generic() with req =
PRU_{DISCONNECT,SHUTDOWN,ABORT}
with calls to pr_{disconnect,shutdown,abort}() respectively
rename existing internal functions used to implement above functionality
to permit use of the names for xxx_{disconnect,shutdown,abort}().
- {l2cap,sco,rfcomm}_disconnect() ->
{l2cap,sco,rfcomm}_disconnect_pcb()
- {unp,rip,tcp}_disconnect() -> {unp,rip,tcp}_disconnect1()
- unp_shutdown() -> unp_shutdown1()
patch reviewed by rmind
into seaparate functions
xxx_listen(struct socket *, struct mbuf *)
- always KASSERT(solocked(so)) and KASSERT(nam != NULL)
- replace calls to pr_generic() with req = PRU_CONNECT with
pr_connect()
- rename existin {l2cap,sco,rfcomm}_connect() to
{l2cap,sco,rfcomm}_connect_pcb() respectively to permit
naming consistency with other protocols functions.
- drop struct lwp * parameter from unp_connect() and at_pcbconnect()
and use curlwp instead where appropriate.
patch reviewed by rmind
switches and put into separate functions
xxx_bind(struct socket *, struct mbuf *)
xxx_listen(struct socket *)
- always KASSERT(solocked(so)) even if not implemented
- replace calls to pr_generic() with req = PRU_BIND with call to
pr_bind()
- replace calls to pr_generic() with req = PRU_LISTEN with call to
pr_listen()
- drop struct lwp * parameter from at_pcbsetaddr(), in_pcbbind() and
unp_bind() and always use curlwp.
rename existing functions that operate on PCB for consistency (and to
free up their names for xxx_{bind,listen}() PRUs
- l2cap_{bind,listen}() -> l2cap_{bind,listen}_pcb()
- sco_{bind,listen}() -> sco_{bind,listen}_pcb()
- rfcomm_{bind,listen}() -> rfcomm_{bind,listen}_pcb()
patch reviewed by rmind
welcome to netbsd 6.99.48
switches and put into separate functions
xxx_sendoob(struct socket *, struct mbuf *, struct mbuf *)
xxx_recvoob(struct socket *, struct mbuf *, int)
- always KASSERT(solocked(so)) even if request is not implemented
- replace calls to pr_generic() with req = PRU_{SEND,RCV}OOB with
calls to pr_{send,recv}oob() respectively.
there is still some tweaking of m_freem(m) and m_freem(control) to come
for consistency. not performed with this commit for clarity.
reviewed by rmind
into a separate function xxx_accept(struct socket *, struct mbuf *)
note: future cleanup will take place to remove struct mbuf parameter
type and replace it with a more appropriate type.
patch reviewed by rmind
usrreq switches and put into separate functions
xxx_{peer,sock}addr(struct socket *, struct mbuf *).
- KASSERT(solocked(so)) always in new functions even if request
is not implemented
- KASSERT(pcb != NULL) and KASSERT(nam) if the request is
implemented and not for tcp.
* for tcp roll #ifdef KPROF and #ifdef DEBUG code from tcp_usrreq() into
easier to cut & paste functions tcp_debug_capture() and
tcp_debug_trace()
- functions provided by rmind
- remaining use of PRU_{PEER,SOCK}ADDR #define to be removed in a
future commit.
* rename netbt functions to permit consistency of pru function names
(as has been done with other requests already split out).
- l2cap_{peer,sock}addr() -> l2cap_{peer,sock}_addr_pcb()
- rfcomm_{peer,sock}addr() -> rfcomm_{peer,sock}_addr_pcb()
- sco_{peer,sock}addr() -> sco_{peer,sock}_addr_pcb()
* split/refactor do_sys_getsockname(lwp, fd, which, nam) into
two functions do_sys_get{peer,sock}name(fd, nam).
- move PRU_PEERADDR handling into do_sys_getpeername() from
do_sys_getsockname()
- have svr4_stream directly call do_sys_get{sock,peer}name()
respectively instead of providing `which' & fix a DPRINTF string
that incorrectly wrote "getpeername" when it meant "getsockname"
- fix sys_getpeername() and sys_getsockname() to call
do_sys_get{sock,peer}name() without `which' and `lwp' & adjust
comments
- bump kernel version for removal of lwp & which parameters from
do_sys_getsockname()
note: future cleanup to remove struct mbuf * abuse in
xxx_{peer,sock}name()
still to come, not done in this commit since it is easier to do post
split.
patch reviewed by rmind
welcome to 6.99.47
christos