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Lines 197-203
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| 197 |
* NB: The original sysctl somaxconn is still available but hidden |
197 |
* NB: The original sysctl somaxconn is still available but hidden |
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* to prevent confusion about the actual purpose of this number. |
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* to prevent confusion about the actual purpose of this number. |
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*/ |
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*/ |
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static u_int somaxconn = SOMAXCONN; |
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static VNET_DEFINE(u_int, somaxconn) = SOMAXCONN; |
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#define V_somaxconn VNET(somaxconn) |
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| 202 |
static int |
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static int |
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sysctl_somaxconn(SYSCTL_HANDLER_ARGS) |
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sysctl_somaxconn(SYSCTL_HANDLER_ARGS) |
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Lines 205-211
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| 205 |
int error; |
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int error; |
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int val; |
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int val; |
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val = somaxconn; |
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val = V_somaxconn; |
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error = sysctl_handle_int(oidp, &val, 0, req); |
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error = sysctl_handle_int(oidp, &val, 0, req); |
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if (error || !req->newptr ) |
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if (error || !req->newptr ) |
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return (error); |
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return (error); |
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Lines 219-239
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| 219 |
if (val < 1 || val > UINT_MAX / 3) |
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if (val < 1 || val > UINT_MAX / 3) |
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return (EINVAL); |
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return (EINVAL); |
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somaxconn = val; |
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V_somaxconn = val; |
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return (0); |
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return (0); |
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} |
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} |
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SYSCTL_PROC(_kern_ipc, OID_AUTO, soacceptqueue, CTLTYPE_UINT | CTLFLAG_RW, |
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SYSCTL_PROC(_kern_ipc, OID_AUTO, soacceptqueue, |
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CTLFLAG_VNET | CTLTYPE_UINT | CTLFLAG_RW, |
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0, sizeof(int), sysctl_somaxconn, "I", |
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0, sizeof(int), sysctl_somaxconn, "I", |
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"Maximum listen socket pending connection accept queue size"); |
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"Maximum listen socket pending connection accept queue size"); |
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SYSCTL_PROC(_kern_ipc, KIPC_SOMAXCONN, somaxconn, |
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SYSCTL_PROC(_kern_ipc, KIPC_SOMAXCONN, somaxconn, |
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CTLTYPE_UINT | CTLFLAG_RW | CTLFLAG_SKIP, |
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CTLFLAG_VNET | CTLTYPE_UINT | CTLFLAG_RW | CTLFLAG_SKIP, |
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0, sizeof(int), sysctl_somaxconn, "I", |
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0, sizeof(int), sysctl_somaxconn, "I", |
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"Maximum listen socket pending connection accept queue size (compat)"); |
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"Maximum listen socket pending connection accept queue size (compat)"); |
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static int numopensockets; |
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static VNET_DEFINE(int, numopensockets); |
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SYSCTL_INT(_kern_ipc, OID_AUTO, numopensockets, CTLFLAG_RD, |
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#define V_numopensockets VNET(numopensockets) |
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&numopensockets, 0, "Number of open sockets"); |
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SYSCTL_INT(_kern_ipc, OID_AUTO, numopensockets, |
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CTLFLAG_VNET | CTLFLAG_RD, |
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&VNET_NAME(numopensockets), 0, "Number of open sockets"); |
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| 237 |
/* |
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/* |
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* accept_mtx locks down per-socket fields relating to accept queues. See |
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* accept_mtx locks down per-socket fields relating to accept queues. See |
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* socketvar.h for an annotation of the protected fields of struct socket. |
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* socketvar.h for an annotation of the protected fields of struct socket. |
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Lines 242-248
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| 242 |
MTX_SYSINIT(accept_mtx, &accept_mtx, "accept", MTX_DEF); |
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MTX_SYSINIT(accept_mtx, &accept_mtx, "accept", MTX_DEF); |
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248 |
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| 244 |
/* |
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/* |
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* so_global_mtx protects so_gencnt, numopensockets, and the per-socket |
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* so_global_mtx protects so_gencnt, V_numopensockets, and the per-socket |
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* so_gencnt field. |
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* so_gencnt field. |
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*/ |
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*/ |
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static struct mtx so_global_mtx; |
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static struct mtx so_global_mtx; |
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Lines 414-420
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| 414 |
} |
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} |
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mtx_lock(&so_global_mtx); |
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mtx_lock(&so_global_mtx); |
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so->so_gencnt = ++so_gencnt; |
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so->so_gencnt = ++so_gencnt; |
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++numopensockets; |
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++V_numopensockets; |
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#ifdef VIMAGE |
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#ifdef VIMAGE |
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vnet->vnet_sockcnt++; |
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vnet->vnet_sockcnt++; |
| 420 |
#endif |
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#endif |
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Lines 437-443
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| 437 |
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| 438 |
mtx_lock(&so_global_mtx); |
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mtx_lock(&so_global_mtx); |
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so->so_gencnt = ++so_gencnt; |
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so->so_gencnt = ++so_gencnt; |
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--numopensockets; /* Could be below, but faster here. */ |
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--V_numopensockets; /* Could be below, but faster here. */ |
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#ifdef VIMAGE |
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#ifdef VIMAGE |
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VNET_ASSERT(so->so_vnet != NULL, ("%s:%d so_vnet is NULL, so=%p", |
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VNET_ASSERT(so->so_vnet != NULL, ("%s:%d so_vnet is NULL, so=%p", |
| 443 |
__func__, __LINE__, so)); |
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__func__, __LINE__, so)); |
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Lines 744-751
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| 744 |
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749 |
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| 745 |
SOCK_LOCK_ASSERT(so); |
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SOCK_LOCK_ASSERT(so); |
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751 |
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| 747 |
if (backlog < 0 || backlog > somaxconn) |
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if (backlog < 0 || backlog > V_somaxconn) |
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backlog = somaxconn; |
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backlog = V_somaxconn; |
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so->so_qlimit = backlog; |
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so->so_qlimit = backlog; |
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so->so_options |= SO_ACCEPTCONN; |
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so->so_options |= SO_ACCEPTCONN; |
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} |
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} |