Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files. =================================================================== RCS file: /ftp/cvs/cvsroot/src/sys/kern/uipc_socket.c,v rcsdiff: /ftp/cvs/cvsroot/src/sys/kern/uipc_socket.c,v: warning: Unknown phrases like `commitid ...;' are present. retrieving revision 1.115 retrieving revision 1.125 diff -u -p -r1.115 -r1.125 --- src/sys/kern/uipc_socket.c 2005/12/27 00:00:29 1.115 +++ src/sys/kern/uipc_socket.c 2006/10/03 11:15:04 1.125 @@ -1,4 +1,4 @@ -/* $NetBSD: uipc_socket.c,v 1.115 2005/12/27 00:00:29 yamt Exp $ */ +/* $NetBSD: uipc_socket.c,v 1.125 2006/10/03 11:15:04 elad Exp $ */ /*- * Copyright (c) 2002 The NetBSD Foundation, Inc. @@ -68,7 +68,7 @@ */ #include -__KERNEL_RCSID(0, "$NetBSD: uipc_socket.c,v 1.115 2005/12/27 00:00:29 yamt Exp $"); +__KERNEL_RCSID(0, "$NetBSD: uipc_socket.c,v 1.125 2006/10/03 11:15:04 elad Exp $"); #include "opt_sock_counters.h" #include "opt_sosend_loan.h" @@ -91,6 +91,7 @@ __KERNEL_RCSID(0, "$NetBSD: uipc_socket. #include #include #include +#include #include @@ -126,20 +127,12 @@ EVCNT_ATTACH_STATIC(sosend_kvalimit); #endif /* SOSEND_COUNTERS */ -void -soinit(void) -{ - - /* Set the initial adjusted socket buffer size. */ - if (sb_max_set(sb_max)) - panic("bad initial sb_max value: %lu", sb_max); - -} +static struct callback_entry sokva_reclaimerentry; #ifdef SOSEND_NO_LOAN -int use_sosend_loan = 0; +int sock_loan_thresh = -1; #else -int use_sosend_loan = 1; +int sock_loan_thresh = 4096; #endif static struct simplelock so_pendfree_slock = SIMPLELOCK_INITIALIZER; @@ -152,11 +145,10 @@ int somaxkva = SOMAXKVA; static int socurkva; static int sokvawaiters; -#define SOCK_LOAN_THRESH 4096 #define SOCK_LOAN_CHUNK 65536 -static size_t sodopendfree(struct socket *); -static size_t sodopendfreel(struct socket *); +static size_t sodopendfree(void); +static size_t sodopendfreel(void); static vsize_t sokvareserve(struct socket *so, vsize_t len) @@ -173,7 +165,7 @@ sokvareserve(struct socket *so, vsize_t * try to do pendfree. */ - freed = sodopendfreel(so); + freed = sodopendfreel(); /* * if some kva was freed, try again. @@ -292,14 +284,14 @@ sodoloanfree(struct vm_page **pgs, caddr } static size_t -sodopendfree(struct socket *so) +sodopendfree() { int s; size_t rv; s = splvm(); simple_lock(&so_pendfree_slock); - rv = sodopendfreel(so); + rv = sodopendfreel(); simple_unlock(&so_pendfree_slock); splx(s); @@ -315,7 +307,7 @@ sodopendfree(struct socket *so) */ static size_t -sodopendfreel(struct socket *so) +sodopendfreel() { size_t rv = 0; @@ -390,7 +382,7 @@ sosend_loan(struct socket *so, struct ui vaddr_t lva, va; int npgs, i, error; - if (uio->uio_segflg != UIO_USERSPACE) + if (VMSPACE_IS_KERNEL_P(uio->uio_vmspace)) return (0); if (iov->iov_len < (size_t) space) @@ -405,13 +397,12 @@ sosend_loan(struct socket *so, struct ui /* XXX KDASSERT */ KASSERT(npgs <= M_EXT_MAXPAGES); - KASSERT(uio->uio_lwp != NULL); lva = sokvaalloc(len, so); if (lva == 0) return 0; - error = uvm_loan(&uio->uio_lwp->l_proc->p_vmspace->vm_map, sva, len, + error = uvm_loan(&uio->uio_vmspace->vm_map, sva, len, m->m_ext.ext_pgs, UVM_LOAN_TOPAGE); if (error) { sokvafree(lva, len); @@ -440,6 +431,32 @@ sosend_loan(struct socket *so, struct ui return (space); } +static int +sokva_reclaim_callback(struct callback_entry *ce, void *obj, void *arg) +{ + + KASSERT(ce == &sokva_reclaimerentry); + KASSERT(obj == NULL); + + sodopendfree(); + if (!vm_map_starved_p(kernel_map)) { + return CALLBACK_CHAIN_ABORT; + } + return CALLBACK_CHAIN_CONTINUE; +} + +void +soinit(void) +{ + + /* Set the initial adjusted socket buffer size. */ + if (sb_max_set(sb_max)) + panic("bad initial sb_max value: %lu", sb_max); + + callback_register(&vm_map_to_kernel(kernel_map)->vmk_reclaim_callback, + &sokva_reclaimerentry, NULL, sokva_reclaim_callback); +} + /* * Socket operation routines. * These routines are called by the routines in @@ -460,7 +477,16 @@ socreate(int dom, struct socket **aso, i prp = pffindproto(dom, proto, type); else prp = pffindtype(dom, type); - if (prp == 0 || prp->pr_usrreq == 0) + if (prp == 0) { + /* no support for domain */ + if (pffinddomain(dom) == 0) + return (EAFNOSUPPORT); + /* no support for socket type */ + if (proto == 0 && type != 0) + return (EPROTOTYPE); + return (EPROTONOSUPPORT); + } + if (prp->pr_usrreq == 0) return (EPROTONOSUPPORT); if (prp->pr_type != type) return (EPROTOTYPE); @@ -479,7 +505,7 @@ socreate(int dom, struct socket **aso, i so->so_mowner = &prp->pr_domain->dom_mowner; #endif if (l != NULL) { - uid = l->l_proc->p_ucred->cr_uid; + uid = kauth_cred_geteuid(l->l_cred); } else { uid = 0; } @@ -706,7 +732,7 @@ sodisconnect(struct socket *so) (struct lwp *)0); bad: splx(s); - sodopendfree(so); + sodopendfree(); return (error); } @@ -738,7 +764,7 @@ sosend(struct socket *so, struct mbuf *a int error, s, dontroute, atomic; p = l->l_proc; - sodopendfree(so); + sodopendfree(); clen = 0; atomic = sosendallatonce(so) || top; @@ -826,9 +852,9 @@ sosend(struct socket *so, struct mbuf *a mlen = MLEN; } MCLAIM(m, so->so_snd.sb_mowner); - if (use_sosend_loan && - uio->uio_iov->iov_len >= SOCK_LOAN_THRESH && - space >= SOCK_LOAN_THRESH && + if (sock_loan_thresh >= 0 && + uio->uio_iov->iov_len >= sock_loan_thresh && + space >= sock_loan_thresh && (len = sosend_loan(so, uio, m, space)) != 0) { SOSEND_COUNTER_INCR(&sosend_loan_big); @@ -934,7 +960,7 @@ int soreceive(struct socket *so, struct mbuf **paddr, struct uio *uio, struct mbuf **mp0, struct mbuf **controlp, int *flagsp) { - struct lwp *l; + struct lwp *l = curlwp; struct mbuf *m, **mp; int flags, len, error, s, offset, moff, type, orig_resid; const struct protosw *pr; @@ -945,7 +971,6 @@ soreceive(struct socket *so, struct mbuf mp = mp0; type = 0; orig_resid = uio->uio_resid; - l = uio->uio_lwp; if (paddr) *paddr = 0; @@ -957,7 +982,7 @@ soreceive(struct socket *so, struct mbuf flags = 0; if ((flags & MSG_DONTWAIT) == 0) - sodopendfree(so); + sodopendfree(); if (flags & MSG_OOB) { m = m_get(M_WAIT, MT_DATA);