Mercurial > hg > nginx-quic
view src/os/unix/ngx_darwin_init.c @ 8700:b09f055daa4e quic
QUIC: fixed handling of RETIRE_CONNECTION_ID frame.
Previously, the retired socket was not closed if it didn't match
active or backup.
New sockets could not be created (due to count limit), since retired socket
was not closed before calling ngx_quic_create_sockets().
When replacing retired socket, new socket is only requested after closing
old one, to avoid hitting the limit on the number of active connection ids.
Together with added restrictions, this fixes an issue when a current socket
could be closed during migration, recreated and erroneously reused leading
to null pointer dereference.
author | Vladimir Homutov <vl@nginx.com> |
---|---|
date | Thu, 18 Nov 2021 14:19:36 +0300 |
parents | 56fc55e32f23 |
children |
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/* * Copyright (C) Igor Sysoev * Copyright (C) Nginx, Inc. */ #include <ngx_config.h> #include <ngx_core.h> char ngx_darwin_kern_ostype[16]; char ngx_darwin_kern_osrelease[128]; int ngx_darwin_hw_ncpu; int ngx_darwin_kern_ipc_somaxconn; u_long ngx_darwin_net_inet_tcp_sendspace; ngx_uint_t ngx_debug_malloc; static ngx_os_io_t ngx_darwin_io = { ngx_unix_recv, ngx_readv_chain, ngx_udp_unix_recv, ngx_unix_send, ngx_udp_unix_send, ngx_udp_unix_sendmsg_chain, #if (NGX_HAVE_SENDFILE) ngx_darwin_sendfile_chain, NGX_IO_SENDFILE #else ngx_writev_chain, 0 #endif }; typedef struct { char *name; void *value; size_t size; ngx_uint_t exists; } sysctl_t; sysctl_t sysctls[] = { { "hw.ncpu", &ngx_darwin_hw_ncpu, sizeof(ngx_darwin_hw_ncpu), 0 }, { "net.inet.tcp.sendspace", &ngx_darwin_net_inet_tcp_sendspace, sizeof(ngx_darwin_net_inet_tcp_sendspace), 0 }, { "kern.ipc.somaxconn", &ngx_darwin_kern_ipc_somaxconn, sizeof(ngx_darwin_kern_ipc_somaxconn), 0 }, { NULL, NULL, 0, 0 } }; void ngx_debug_init(void) { #if (NGX_DEBUG_MALLOC) /* * MacOSX 10.6, 10.7: MallocScribble fills freed memory with 0x55 * and fills allocated memory with 0xAA. * MacOSX 10.4, 10.5: MallocScribble fills freed memory with 0x55, * MallocPreScribble fills allocated memory with 0xAA. * MacOSX 10.3: MallocScribble fills freed memory with 0x55, * and no way to fill allocated memory. */ setenv("MallocScribble", "1", 0); ngx_debug_malloc = 1; #else if (getenv("MallocScribble")) { ngx_debug_malloc = 1; } #endif } ngx_int_t ngx_os_specific_init(ngx_log_t *log) { size_t size; ngx_err_t err; ngx_uint_t i; size = sizeof(ngx_darwin_kern_ostype); if (sysctlbyname("kern.ostype", ngx_darwin_kern_ostype, &size, NULL, 0) == -1) { err = ngx_errno; if (err != NGX_ENOENT) { ngx_log_error(NGX_LOG_ALERT, log, err, "sysctlbyname(kern.ostype) failed"); if (err != NGX_ENOMEM) { return NGX_ERROR; } ngx_darwin_kern_ostype[size - 1] = '\0'; } } size = sizeof(ngx_darwin_kern_osrelease); if (sysctlbyname("kern.osrelease", ngx_darwin_kern_osrelease, &size, NULL, 0) == -1) { err = ngx_errno; if (err != NGX_ENOENT) { ngx_log_error(NGX_LOG_ALERT, log, err, "sysctlbyname(kern.osrelease) failed"); if (err != NGX_ENOMEM) { return NGX_ERROR; } ngx_darwin_kern_osrelease[size - 1] = '\0'; } } for (i = 0; sysctls[i].name; i++) { size = sysctls[i].size; if (sysctlbyname(sysctls[i].name, sysctls[i].value, &size, NULL, 0) == 0) { sysctls[i].exists = 1; continue; } err = ngx_errno; if (err == NGX_ENOENT) { continue; } ngx_log_error(NGX_LOG_ALERT, log, err, "sysctlbyname(%s) failed", sysctls[i].name); return NGX_ERROR; } ngx_ncpu = ngx_darwin_hw_ncpu; if (ngx_darwin_kern_ipc_somaxconn > 32767) { ngx_log_error(NGX_LOG_ALERT, log, 0, "sysctl kern.ipc.somaxconn must be less than 32768"); return NGX_ERROR; } ngx_tcp_nodelay_and_tcp_nopush = 1; ngx_os_io = ngx_darwin_io; return NGX_OK; } void ngx_os_specific_status(ngx_log_t *log) { u_long value; ngx_uint_t i; if (ngx_darwin_kern_ostype[0]) { ngx_log_error(NGX_LOG_NOTICE, log, 0, "OS: %s %s", ngx_darwin_kern_ostype, ngx_darwin_kern_osrelease); } for (i = 0; sysctls[i].name; i++) { if (sysctls[i].exists) { if (sysctls[i].size == sizeof(long)) { value = *(long *) sysctls[i].value; } else { value = *(int *) sysctls[i].value; } ngx_log_error(NGX_LOG_NOTICE, log, 0, "%s: %l", sysctls[i].name, value); } } }