summaryrefslogtreecommitdiff
path: root/pjlib/src/pj/sock_qos_darwin.c
diff options
context:
space:
mode:
Diffstat (limited to 'pjlib/src/pj/sock_qos_darwin.c')
-rw-r--r--pjlib/src/pj/sock_qos_darwin.c427
1 files changed, 427 insertions, 0 deletions
diff --git a/pjlib/src/pj/sock_qos_darwin.c b/pjlib/src/pj/sock_qos_darwin.c
new file mode 100644
index 00000000..eb14a692
--- /dev/null
+++ b/pjlib/src/pj/sock_qos_darwin.c
@@ -0,0 +1,427 @@
+/* $Id$ */
+/*
+ * Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+#include <pj/sock_qos.h>
+#include <pj/assert.h>
+#include <pj/errno.h>
+#include <pj/string.h>
+#include <pj/compat/socket.h>
+
+/* This is the implementation of QoS with BSD socket's setsockopt(),
+ * using Darwin-specific SO_NET_SERVICE_TYPE if available, and IP_TOS/
+ * IPV6_TCLASS as fallback.
+ */
+#if !defined(PJ_QOS_IMPLEMENTATION) || PJ_QOS_IMPLEMENTATION==PJ_QOS_IOS
+
+#include <sys/socket.h>
+
+#ifdef SO_NET_SERVICE_TYPE
+static pj_status_t sock_set_net_service_type(pj_sock_t sock, int val)
+{
+ pj_status_t status;
+
+ status = pj_sock_setsockopt(sock, pj_SOL_SOCKET(), SO_NET_SERVICE_TYPE,
+ &val, sizeof(val));
+ if (status == PJ_STATUS_FROM_OS(OSERR_ENOPROTOOPT))
+ status = PJ_ENOTSUP;
+
+ return status;
+}
+#endif
+
+static pj_status_t sock_set_net_service_type_type(pj_sock_t sock,
+ pj_qos_type type)
+{
+#ifdef SO_NET_SERVICE_TYPE
+ int val = NET_SERVICE_TYPE_BE;
+
+ switch (type) {
+ case PJ_QOS_TYPE_BEST_EFFORT:
+ val = NET_SERVICE_TYPE_BE;
+ break;
+ case PJ_QOS_TYPE_BACKGROUND:
+ val = NET_SERVICE_TYPE_BK;
+ break;
+ case PJ_QOS_TYPE_SIGNALLING:
+ val = NET_SERVICE_TYPE_SIG;
+ break;
+ case PJ_QOS_TYPE_VIDEO:
+ val = NET_SERVICE_TYPE_VI;
+ break;
+ case PJ_QOS_TYPE_VOICE:
+ case PJ_QOS_TYPE_CONTROL:
+ default:
+ val = NET_SERVICE_TYPE_VO;
+ break;
+ }
+
+ return sock_set_net_service_type(sock, val);
+#else
+ return PJ_ENOTSUP;
+#endif
+}
+
+static pj_status_t sock_set_net_service_type_params(pj_sock_t sock,
+ pj_qos_params *param)
+{
+#ifdef SO_NET_SERVICE_TYPE
+ pj_status_t status;
+ int val = -1;
+
+ PJ_ASSERT_RETURN(param, PJ_EINVAL);
+
+ /*
+ * Sources:
+ * - IETF draft-szigeti-tsvwg-ieee-802-11e-01
+ * - iOS 10 SDK, sys/socket.h
+ */
+ if (val == -1 && param->flags & PJ_QOS_PARAM_HAS_DSCP) {
+ if (param->dscp_val == 0) /* DF */
+ val = NET_SERVICE_TYPE_BE;
+ else if (param->dscp_val < 0x10) /* CS1, AF11, AF12, AF13 */
+ val = NET_SERVICE_TYPE_BK;
+ else if (param->dscp_val == 0x10) /* CS2 */
+ val = NET_SERVICE_TYPE_OAM;
+ else if (param->dscp_val < 0x18) /* AF21, AF22, AF23 */
+ val = NET_SERVICE_TYPE_RD;
+ else if (param->dscp_val < 0x20) /* CS3, AF31, AF32, AF33 */
+ val = NET_SERVICE_TYPE_AV;
+ else if (param->dscp_val == 0x20) /* CS4 */
+ val = NET_SERVICE_TYPE_RD;
+ else if (param->dscp_val < 0x28) /* AF41, AF42, AF43 */
+ val = NET_SERVICE_TYPE_VI;
+ else if (param->dscp_val == 0x28) /* CS5 */
+ val = NET_SERVICE_TYPE_SIG;
+ else
+ val = NET_SERVICE_TYPE_VO; /* VOICE-ADMIT, EF, CS6, etc. */
+ }
+
+ if (val == -1 && param->flags & PJ_QOS_PARAM_HAS_WMM) {
+ switch (param->wmm_prio) {
+ case PJ_QOS_WMM_PRIO_BULK_EFFORT:
+ val = NET_SERVICE_TYPE_BE;
+ break;
+ case PJ_QOS_WMM_PRIO_BULK:
+ val = NET_SERVICE_TYPE_BK;
+ break;
+ case PJ_QOS_WMM_PRIO_VIDEO:
+ val = NET_SERVICE_TYPE_VI;
+ break;
+ case PJ_QOS_WMM_PRIO_VOICE:
+ val = NET_SERVICE_TYPE_VO;
+ break;
+ }
+ }
+
+ if (val == -1) {
+ pj_qos_type type;
+
+ status = pj_qos_get_type(param, &type);
+
+ if (status == PJ_SUCCESS)
+ return sock_set_net_service_type_type(sock, type);
+
+ val = NET_SERVICE_TYPE_BE;
+ }
+
+ return sock_set_net_service_type(sock, val);
+#else
+ return PJ_ENOTSUP;
+#endif
+}
+
+static pj_status_t sock_set_ip_ds(pj_sock_t sock, pj_qos_params *param)
+{
+ pj_status_t status = PJ_SUCCESS;
+
+ PJ_ASSERT_RETURN(param, PJ_EINVAL);
+
+ if (param->flags & PJ_QOS_PARAM_HAS_DSCP) {
+ /* We need to know if the socket is IPv4 or IPv6 */
+ pj_sockaddr sa;
+ int salen = sizeof(salen);
+
+ /* Value is dscp_val << 2 */
+ int val = (param->dscp_val << 2);
+
+ status = pj_sock_getsockname(sock, &sa, &salen);
+ if (status != PJ_SUCCESS)
+ return status;
+
+ if (sa.addr.sa_family == pj_AF_INET()) {
+ /* In IPv4, the DS field goes in the TOS field */
+ status = pj_sock_setsockopt(sock, pj_SOL_IP(), pj_IP_TOS(),
+ &val, sizeof(val));
+ } else if (sa.addr.sa_family == pj_AF_INET6()) {
+ /* In IPv6, the DS field goes in the Traffic Class field */
+ status = pj_sock_setsockopt(sock, pj_SOL_IPV6(),
+ pj_IPV6_TCLASS(),
+ &val, sizeof(val));
+ } else
+ status = PJ_EINVAL;
+
+ if (status != PJ_SUCCESS) {
+ param->flags &= ~(PJ_QOS_PARAM_HAS_DSCP);
+ }
+ }
+
+ return status;
+}
+
+PJ_DEF(pj_status_t) pj_sock_set_qos_params(pj_sock_t sock,
+ pj_qos_params *param)
+{
+ pj_status_t status;
+
+ PJ_ASSERT_RETURN(param, PJ_EINVAL);
+
+ /* No op? */
+ if (!param->flags)
+ return PJ_SUCCESS;
+
+ /* Clear prio field since we don't support it */
+ param->flags &= ~(PJ_QOS_PARAM_HAS_SO_PRIO);
+
+ /* Try SO_NET_SERVICE_TYPE */
+ status = sock_set_net_service_type_params(sock, param);
+ if (status == PJ_SUCCESS)
+ return status;
+
+ if (status != PJ_ENOTSUP) {
+ /* SO_NET_SERVICE_TYPE sets both DSCP and WMM */
+ param->flags &= ~(PJ_QOS_PARAM_HAS_DSCP);
+ param->flags &= ~(PJ_QOS_PARAM_HAS_WMM);
+ return status;
+ }
+
+ /* Fall back to IP_TOS/IPV6_TCLASS */
+ return sock_set_ip_ds(sock, param);
+}
+
+PJ_DEF(pj_status_t) pj_sock_set_qos_type(pj_sock_t sock,
+ pj_qos_type type)
+{
+ pj_status_t status;
+ pj_qos_params param;
+
+ /* Try SO_NET_SERVICE_TYPE */
+ status = sock_set_net_service_type_type(sock, type);
+ if (status == PJ_SUCCESS || status != PJ_ENOTSUP)
+ return status;
+
+ /* Fall back to IP_TOS/IPV6_TCLASS */
+ status = pj_qos_get_params(type, &param);
+ if (status != PJ_SUCCESS)
+ return status;
+
+ return sock_set_ip_ds(sock, &param);
+}
+
+#ifdef SO_NET_SERVICE_TYPE
+static pj_status_t sock_get_net_service_type(pj_sock_t sock, int *p_val)
+{
+ pj_status_t status;
+ int optlen = sizeof(*p_val);
+
+ PJ_ASSERT_RETURN(p_val, PJ_EINVAL);
+
+ status = pj_sock_getsockopt(sock, pj_SOL_SOCKET(), SO_NET_SERVICE_TYPE,
+ p_val, &optlen);
+ if (status == PJ_STATUS_FROM_OS(OSERR_ENOPROTOOPT))
+ status = PJ_ENOTSUP;
+
+ return status;
+}
+#endif
+
+static pj_status_t sock_get_net_service_type_type(pj_sock_t sock,
+ pj_qos_type *p_type)
+{
+#ifdef SO_NET_SERVICE_TYPE
+ pj_status_t status;
+ int val;
+
+ PJ_ASSERT_RETURN(p_type, PJ_EINVAL);
+
+ status = sock_get_net_service_type(sock, &val);
+ if (status == PJ_SUCCESS) {
+ switch (val) {
+ default:
+ case NET_SERVICE_TYPE_BE:
+ *p_type = PJ_QOS_TYPE_BEST_EFFORT;
+ break;
+ case NET_SERVICE_TYPE_BK:
+ *p_type = PJ_QOS_TYPE_BACKGROUND;
+ break;
+ case NET_SERVICE_TYPE_SIG:
+ *p_type = PJ_QOS_TYPE_SIGNALLING;
+ break;
+ case NET_SERVICE_TYPE_VI:
+ case NET_SERVICE_TYPE_RV:
+ case NET_SERVICE_TYPE_AV:
+ case NET_SERVICE_TYPE_OAM:
+ case NET_SERVICE_TYPE_RD:
+ *p_type = PJ_QOS_TYPE_VIDEO;
+ break;
+ case NET_SERVICE_TYPE_VO:
+ *p_type = PJ_QOS_TYPE_VOICE;
+ break;
+ }
+ }
+
+ return status;
+#else
+ return PJ_ENOTSUP;
+#endif
+}
+
+static pj_status_t sock_get_net_service_type_params(pj_sock_t sock,
+ pj_qos_params *p_param)
+{
+#ifdef SO_NET_SERVICE_TYPE
+ pj_status_t status;
+ int val;
+
+ PJ_ASSERT_RETURN(p_param, PJ_EINVAL);
+
+ status = sock_get_net_service_type(sock, &val);
+ if (status == PJ_SUCCESS) {
+ pj_bzero(p_param, sizeof(*p_param));
+
+ /* Note: these are just educated guesses, chosen for symmetry with
+ * sock_set_net_service_type_params: we can't know the actual values
+ * chosen by the OS, or even if DSCP/WMM are used at all.
+ *
+ * The source for mapping DSCP to WMM is:
+ * - IETF draft-szigeti-tsvwg-ieee-802-11e-01
+ */
+ switch (val) {
+ default:
+ case NET_SERVICE_TYPE_BE:
+ p_param->flags = PJ_QOS_PARAM_HAS_DSCP | PJ_QOS_PARAM_HAS_WMM;
+ p_param->dscp_val = 0; /* DF */
+ p_param->wmm_prio = PJ_QOS_WMM_PRIO_BULK_EFFORT; /* AC_BE */
+ break;
+ case NET_SERVICE_TYPE_BK:
+ p_param->flags = PJ_QOS_PARAM_HAS_DSCP | PJ_QOS_PARAM_HAS_WMM;
+ p_param->dscp_val = 0x08; /* CS1 */
+ p_param->wmm_prio = PJ_QOS_WMM_PRIO_BULK; /* AC_BK */
+ break;
+ case NET_SERVICE_TYPE_SIG:
+ p_param->flags = PJ_QOS_PARAM_HAS_DSCP | PJ_QOS_PARAM_HAS_WMM;
+ p_param->dscp_val = 0x28; /* CS5 */
+ p_param->wmm_prio = PJ_QOS_WMM_PRIO_VIDEO; /* AC_VI */
+ break;
+ case NET_SERVICE_TYPE_VI:
+ p_param->flags = PJ_QOS_PARAM_HAS_DSCP | PJ_QOS_PARAM_HAS_WMM;
+ p_param->dscp_val = 0x22; /* AF41 */
+ p_param->wmm_prio = PJ_QOS_WMM_PRIO_VIDEO; /* AC_VI */
+ break;
+ case NET_SERVICE_TYPE_VO:
+ p_param->flags = PJ_QOS_PARAM_HAS_DSCP | PJ_QOS_PARAM_HAS_WMM;
+ p_param->dscp_val = 0x30; /* CS6 */
+ p_param->wmm_prio = PJ_QOS_WMM_PRIO_VOICE; /* AC_VO */
+ break;
+ case NET_SERVICE_TYPE_RV:
+ p_param->flags = PJ_QOS_PARAM_HAS_DSCP | PJ_QOS_PARAM_HAS_WMM;
+ p_param->dscp_val = 0x22; /* AF41 */
+ p_param->wmm_prio = PJ_QOS_WMM_PRIO_VIDEO; /* AC_VI */
+ break;
+ case NET_SERVICE_TYPE_AV:
+ p_param->flags = PJ_QOS_PARAM_HAS_DSCP | PJ_QOS_PARAM_HAS_WMM;
+ p_param->dscp_val = 0x18; /* CS3 */
+ p_param->wmm_prio = PJ_QOS_WMM_PRIO_VIDEO; /* AC_VI */
+ break;
+ case NET_SERVICE_TYPE_OAM:
+ p_param->flags = PJ_QOS_PARAM_HAS_DSCP | PJ_QOS_PARAM_HAS_WMM;
+ p_param->dscp_val = 0x10; /* CS2 */
+ p_param->wmm_prio = PJ_QOS_WMM_PRIO_BULK_EFFORT; /* AC_BE */
+ break;
+ case NET_SERVICE_TYPE_RD:
+ p_param->flags = PJ_QOS_PARAM_HAS_DSCP | PJ_QOS_PARAM_HAS_WMM;
+ p_param->dscp_val = 0x20; /* CS4 */
+ p_param->wmm_prio = PJ_QOS_WMM_PRIO_VIDEO; /* AC_VI */
+ break;
+ }
+ }
+
+ return status;
+#else
+ return PJ_ENOTSUP;
+#endif
+}
+
+PJ_DEF(pj_status_t) pj_sock_get_qos_params(pj_sock_t sock,
+ pj_qos_params *p_param)
+{
+ pj_status_t status;
+ int val, optlen;
+ pj_sockaddr sa;
+ int salen = sizeof(salen);
+
+ PJ_ASSERT_RETURN(p_param, PJ_EINVAL);
+
+ pj_bzero(p_param, sizeof(*p_param));
+
+ /* Try SO_NET_SERVICE_TYPE */
+ status = sock_get_net_service_type_params(sock, p_param);
+ if (status != PJ_ENOTSUP)
+ return status;
+
+ /* Fall back to IP_TOS/IPV6_TCLASS */
+ status = pj_sock_getsockname(sock, &sa, &salen);
+ if (status != PJ_SUCCESS)
+ return status;
+
+ optlen = sizeof(val);
+ if (sa.addr.sa_family == pj_AF_INET()) {
+ status = pj_sock_getsockopt(sock, pj_SOL_IP(), pj_IP_TOS(),
+ &val, &optlen);
+ } else if (sa.addr.sa_family == pj_AF_INET6()) {
+ status = pj_sock_getsockopt(sock, pj_SOL_IPV6(), pj_IPV6_TCLASS(),
+ &val, &optlen);
+ } else
+ status = PJ_EINVAL;
+ if (status == PJ_SUCCESS) {
+ p_param->flags |= PJ_QOS_PARAM_HAS_DSCP;
+ p_param->dscp_val = (pj_uint8_t)(val >> 2);
+ }
+
+ return status;
+}
+
+PJ_DEF(pj_status_t) pj_sock_get_qos_type(pj_sock_t sock,
+ pj_qos_type *p_type)
+{
+ pj_qos_params param;
+ pj_status_t status;
+
+ PJ_ASSERT_RETURN(p_type, PJ_EINVAL);
+
+ status = sock_get_net_service_type_type(sock, p_type);
+ if (status != PJ_ENOTSUP)
+ return status;
+
+ status = pj_sock_get_qos_params(sock, &param);
+ if (status != PJ_SUCCESS)
+ return status;
+
+ return pj_qos_get_type(&param, p_type);
+}
+
+#endif /* PJ_QOS_IMPLEMENTATION */
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-03 02:54:52 +0000