From 8707a2078f34fc45b263f0256ef704f5ea3212d8 Mon Sep 17 00:00:00 2001 From: patacongo Date: Wed, 14 Jul 2010 17:17:39 +0000 Subject: More cosmetic clean-up git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2800 42af7a65-404d-4744-a932-0658087f49c3 --- nuttx/net/uip/uip_igmpinit.c | 242 +++++++++--------- nuttx/net/uip/uip_igmpinput.c | 560 +++++++++++++++++++++--------------------- nuttx/net/uip/uip_igmpjoin.c | 320 ++++++++++++------------ nuttx/net/uip/uip_igmpleave.c | 364 +++++++++++++-------------- nuttx/net/uip/uip_igmpmsg.c | 278 ++++++++++----------- nuttx/net/uip/uip_igmppoll.c | 352 +++++++++++++------------- nuttx/net/uip/uip_igmptimer.c | 514 +++++++++++++++++++------------------- 7 files changed, 1315 insertions(+), 1315 deletions(-) diff --git a/nuttx/net/uip/uip_igmpinit.c b/nuttx/net/uip/uip_igmpinit.c index 8d2c05db8..1bdf34457 100755 --- a/nuttx/net/uip/uip_igmpinit.c +++ b/nuttx/net/uip/uip_igmpinit.c @@ -1,121 +1,121 @@ -/**************************************************************************** - * net/uip/uip_igmpinit.c - * IGMP initialization logic - * - * Copyright (C) 2010 Gregory Nutt. All rights reserved. - * Author: Gregory Nutt - * - * The NuttX implementation of IGMP was inspired by the IGMP add-on for the - * lwIP TCP/IP stack by Steve Reynolds: - * - * Copyright (c) 2002 CITEL Technologies Ltd. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of CITEL Technologies Ltd nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY CITEL TECHNOLOGIES AND CONTRIBUTORS ``AS IS'' - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL CITEL TECHNOLOGIES OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - ****************************************************************************/ - -/**************************************************************************** - * Included Files - ****************************************************************************/ - -#include - -#include -#include - -#include -#include - -#include "uip_internal.h" - -#ifdef CONFIG_NET_IGMP - -/**************************************************************************** - * Pre-processor Definitions - ****************************************************************************/ - -#ifdef CONFIG_NET_IPv6 -# error "IGMP for IPv6 not supported" -#endif - -/**************************************************************************** - * Public Data - ****************************************************************************/ - -uip_ipaddr_t g_allsystems; -uip_ipaddr_t g_allrouters; - -/**************************************************************************** - * Public Functions - ****************************************************************************/ - -/**************************************************************************** - * Name: uip_igmpinit - * - * Description: - * Perform one-time IGMP initialization. - * - ****************************************************************************/ -void uip_igmpinit(void) -{ - nvdbg("IGMP initializing\n"); - - uip_ipaddr(g_allrouters, 224, 0, 0, 2); - uip_ipaddr(g_allsystems, 224, 0, 0, 1); - - /* Initialize the group allocation logic */ - - uip_grpinit(); -} - -/**************************************************************************** - * Name: uip_igmpdevinit - * - * Description: - * Called when a new network device is registered to configure that device - * for IGMP support. - * - ****************************************************************************/ - -void uip_igmpdevinit(struct uip_driver_s *dev) -{ - struct igmp_group_s *group; - - nvdbg("IGMP initializing dev %p\n", dev); - DEBUGASSERT(dev->grplist.head == NULL); - - /* Add the all systems address to the group */ - - group = uip_grpalloc(dev, &g_allsystems); - - /* Allow the IGMP messages at the MAC level */ - - uip_addmcastmac(dev, &g_allrouters); - uip_addmcastmac(dev, &g_allsystems); -} - -#endif /* CONFIG_NET_IGMP */ +/**************************************************************************** + * net/uip/uip_igmpinit.c + * IGMP initialization logic + * + * Copyright (C) 2010 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * + * The NuttX implementation of IGMP was inspired by the IGMP add-on for the + * lwIP TCP/IP stack by Steve Reynolds: + * + * Copyright (c) 2002 CITEL Technologies Ltd. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of CITEL Technologies Ltd nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY CITEL TECHNOLOGIES AND CONTRIBUTORS ``AS IS'' + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL CITEL TECHNOLOGIES OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include + +#include +#include + +#include +#include + +#include "uip_internal.h" + +#ifdef CONFIG_NET_IGMP + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +#ifdef CONFIG_NET_IPv6 +# error "IGMP for IPv6 not supported" +#endif + +/**************************************************************************** + * Public Data + ****************************************************************************/ + +uip_ipaddr_t g_allsystems; +uip_ipaddr_t g_allrouters; + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: uip_igmpinit + * + * Description: + * Perform one-time IGMP initialization. + * + ****************************************************************************/ +void uip_igmpinit(void) +{ + nvdbg("IGMP initializing\n"); + + uip_ipaddr(g_allrouters, 224, 0, 0, 2); + uip_ipaddr(g_allsystems, 224, 0, 0, 1); + + /* Initialize the group allocation logic */ + + uip_grpinit(); +} + +/**************************************************************************** + * Name: uip_igmpdevinit + * + * Description: + * Called when a new network device is registered to configure that device + * for IGMP support. + * + ****************************************************************************/ + +void uip_igmpdevinit(struct uip_driver_s *dev) +{ + struct igmp_group_s *group; + + nvdbg("IGMP initializing dev %p\n", dev); + DEBUGASSERT(dev->grplist.head == NULL); + + /* Add the all systems address to the group */ + + group = uip_grpalloc(dev, &g_allsystems); + + /* Allow the IGMP messages at the MAC level */ + + uip_addmcastmac(dev, &g_allrouters); + uip_addmcastmac(dev, &g_allsystems); +} + +#endif /* CONFIG_NET_IGMP */ diff --git a/nuttx/net/uip/uip_igmpinput.c b/nuttx/net/uip/uip_igmpinput.c index 61803fcca..ba70af5bf 100755 --- a/nuttx/net/uip/uip_igmpinput.c +++ b/nuttx/net/uip/uip_igmpinput.c @@ -1,280 +1,280 @@ -/**************************************************************************** - * net/uip/uip_igminput.c - * - * Copyright (C) 2010 Gregory Nutt. All rights reserved. - * Author: Gregory Nutt - * - * The NuttX implementation of IGMP was inspired by the IGMP add-on for the - * lwIP TCP/IP stack by Steve Reynolds: - * - * Copyright (c) 2002 CITEL Technologies Ltd. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of CITEL Technologies Ltd nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY CITEL TECHNOLOGIES AND CONTRIBUTORS ``AS IS'' - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL CITEL TECHNOLOGIES OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - ****************************************************************************/ - -/**************************************************************************** - * Included Files - ****************************************************************************/ - -#include - -#include -#include -#include - -#include -#include -#include - -#include "uip_internal.h" - -#ifdef CONFIG_NET_IGMP - -/**************************************************************************** - * Pre-processor Definitions - ****************************************************************************/ - -#define IGMPBUF ((struct uip_igmphdr_s *)&dev->d_buf[UIP_LLH_LEN]) - -/**************************************************************************** - * Private Functions - ****************************************************************************/ - -/**************************************************************************** - * Public Functions - ****************************************************************************/ - -/**************************************************************************** - * Name: uip_igmpinput - * - * Description: - * An IGMP packet has been received. - * - * ________________ - * | | - * | | - * | | - * | | - * +--------->| Non-Member |<---------+ - * | | | | - * | | | | - * | | | | - * | |________________| | - * | | | - * | leave group | join group | leave group - * | (stop timer, |(send report, | (send leave - * | send leave if | set flag, | if flag set) - * | flag set) | start timer) | - * ________|________ | ________|________ - * | |<---------+ | | - * | | | | - * | |<-------------------| | - * | | query received | | - * | Delaying Member | (start timer) | Idle Member | - * +---->| |------------------->| | - * | | | report received | | - * | | | (stop timer, | | - * | | | clear flag) | | - * | |_________________|------------------->|_________________| - * | query received | timer expired - * | (reset timer if | (send report, - * | Max Resp Time | set flag) - * | < current timer) | - * +-------------------+ - * - * NOTE: This is most likely executing from an interrupt handler. - * - ****************************************************************************/ - -void uip_igmpinput(struct uip_driver_s *dev) -{ - FAR struct igmp_group_s *group; - uip_ipaddr_t destipaddr; - uip_ipaddr_t grpaddr; - unsigned int ticks; - - nllvdbg("IGMP message: %04x%04x\n", IGMPBUF->destipaddr[1], IGMPBUF->destipaddr[0]); - - /* Verify the message length */ - - if (dev->d_len < UIP_LLH_LEN+UIP_IPIGMPH_LEN) - { - IGMP_STATINCR(uip_stat.igmp.length_errors); - nlldbg("Length error\n"); - return; - } - - /* Calculate and check the IGMP checksum */ - - if (uip_chksum((uint16_t*)&IGMPBUF->type, UIP_IGMPH_LEN) != 0) - { - IGMP_STATINCR(uip_stat.igmp.chksum_errors); - nlldbg("Checksum error\n"); - return; - } - - /* Find the group (or create a new one) using the incoming IP address*/ - - destipaddr = uip_ip4addr_conv(IGMPBUF->destipaddr); - group = uip_grpallocfind(dev, &destipaddr); - if (!group) - { - nlldbg("Failed to allocate/find group: %08x\n", destipaddr); - return; - } - - /* Now handle the message based on the IGMP message type */ - - switch (IGMPBUF->type) - { - case IGMP_MEMBERSHIP_QUERY: - /* RFC 2236, 2.2. ax Response Time - * "The Max Response Time field is meaningful only in Membership Query - * messages, and specifies the maximum allowed time before sending a - * responding report in units of 1/10 second. In all other messages, it - * is set to zero by the sender and ignored by receivers. - */ - - /* Check if the query was sent to all systems */ - - if (uip_ipaddr_cmp(destipaddr, g_allsystems)) - { - /* Yes... Now check the if this this is a general or a group - * specific query. - * - * RFC 2236, 2.1. Type - * There are two sub-types of Membership Query messages: - * - General Query, used to learn which groups have members on an - * attached network. - * - Group-Specific Query, used to learn if a particular group - * has any members on an attached network. - * - * RFC 2236, 2.4. Group Address - * "In a Membership Query message, the group address field is - * set to zero when sending a General Query, and set to the - * group address being queried when sending a Group-Specific - * Query." - */ - - if (IGMPBUF->grpaddr == 0) - { - FAR struct igmp_group_s *member; - - /* This is the general query */ - - nllvdbg("General multicast query\n"); - if (IGMPBUF->maxresp == 0) - { - IGMP_STATINCR(uip_stat.igmp.v1_received); - IGMPBUF->maxresp = 10; - - nlldbg("V1 not implemented\n"); - } - - IGMP_STATINCR(uip_stat.igmp.query_received); - for (member = (FAR struct igmp_group_s *)dev->grplist.head; - member; - member = member->next) - { - /* Skip over the all systems group entry */ - - if (!uip_ipaddr_cmp(member->grpaddr, g_allsystems)) - { - ticks = uip_decisec2tick((int)IGMPBUF->maxresp); - if (IS_IDLEMEMBER(member->flags) || - uip_igmpcmptimer(member, ticks)) - { - uip_igmpstartticks(member, ticks); - CLR_IDLEMEMBER(member->flags); - } - } - } - } - else /* if (IGMPBUF->grpaddr != 0) */ - { - nllvdbg("Group-specific multicast queury\n"); - - /* We first need to re-lookup the group since we used dest last time. - * Use the incoming IPaddress! - */ - - IGMP_STATINCR(uip_stat.igmp.ucast_query); - grpaddr = uip_ip4addr_conv(IGMPBUF->grpaddr); - group = uip_grpallocfind(dev, &grpaddr); - ticks = uip_decisec2tick((int)IGMPBUF->maxresp); - if (IS_IDLEMEMBER(group->flags) || uip_igmpcmptimer(group, ticks)) - { - uip_igmpstartticks(group, ticks); - CLR_IDLEMEMBER(group->flags); - } - } - } - - /* Not sent to all systems -- Unicast query */ - - else if (group->grpaddr != 0) - { - nllvdbg("Unitcast queury\n"); - IGMP_STATINCR(uip_stat.igmp.ucast_query); - - nlldbg("Query to a specific group with the group address as destination\n"); - - ticks = uip_decisec2tick((int)IGMPBUF->maxresp); - if (IS_IDLEMEMBER(group->flags) || uip_igmpcmptimer(group, ticks)) - { - uip_igmpstartticks(group, ticks); - CLR_IDLEMEMBER(group->flags); - } - } - break; - - case IGMPv2_MEMBERSHIP_REPORT: - { - nllvdbg("Membership report\n"); - - IGMP_STATINCR(uip_stat.igmp.report_received); - if (!IS_IDLEMEMBER(group->flags)) - { - /* This is on a specific group we have already looked up */ - - wd_cancel(group->wdog); - SET_IDLEMEMBER(group->flags); - CLR_LASTREPORT(group->flags); - } - } - break; - - default: - { - nlldbg("Unexpected msg %02x\n", IGMPBUF->type); - } - break; - } -} - -#endif /* CONFIG_NET_IGMP */ +/**************************************************************************** + * net/uip/uip_igminput.c + * + * Copyright (C) 2010 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * + * The NuttX implementation of IGMP was inspired by the IGMP add-on for the + * lwIP TCP/IP stack by Steve Reynolds: + * + * Copyright (c) 2002 CITEL Technologies Ltd. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of CITEL Technologies Ltd nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY CITEL TECHNOLOGIES AND CONTRIBUTORS ``AS IS'' + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL CITEL TECHNOLOGIES OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include + +#include +#include +#include + +#include +#include +#include + +#include "uip_internal.h" + +#ifdef CONFIG_NET_IGMP + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +#define IGMPBUF ((struct uip_igmphdr_s *)&dev->d_buf[UIP_LLH_LEN]) + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: uip_igmpinput + * + * Description: + * An IGMP packet has been received. + * + * ________________ + * | | + * | | + * | | + * | | + * +--------->| Non-Member |<---------+ + * | | | | + * | | | | + * | | | | + * | |________________| | + * | | | + * | leave group | join group | leave group + * | (stop timer, |(send report, | (send leave + * | send leave if | set flag, | if flag set) + * | flag set) | start timer) | + * ________|________ | ________|________ + * | |<---------+ | | + * | | | | + * | |<-------------------| | + * | | query received | | + * | Delaying Member | (start timer) | Idle Member | + * +---->| |------------------->| | + * | | | report received | | + * | | | (stop timer, | | + * | | | clear flag) | | + * | |_________________|------------------->|_________________| + * | query received | timer expired + * | (reset timer if | (send report, + * | Max Resp Time | set flag) + * | < current timer) | + * +-------------------+ + * + * NOTE: This is most likely executing from an interrupt handler. + * + ****************************************************************************/ + +void uip_igmpinput(struct uip_driver_s *dev) +{ + FAR struct igmp_group_s *group; + uip_ipaddr_t destipaddr; + uip_ipaddr_t grpaddr; + unsigned int ticks; + + nllvdbg("IGMP message: %04x%04x\n", IGMPBUF->destipaddr[1], IGMPBUF->destipaddr[0]); + + /* Verify the message length */ + + if (dev->d_len < UIP_LLH_LEN+UIP_IPIGMPH_LEN) + { + IGMP_STATINCR(uip_stat.igmp.length_errors); + nlldbg("Length error\n"); + return; + } + + /* Calculate and check the IGMP checksum */ + + if (uip_chksum((uint16_t*)&IGMPBUF->type, UIP_IGMPH_LEN) != 0) + { + IGMP_STATINCR(uip_stat.igmp.chksum_errors); + nlldbg("Checksum error\n"); + return; + } + + /* Find the group (or create a new one) using the incoming IP address*/ + + destipaddr = uip_ip4addr_conv(IGMPBUF->destipaddr); + group = uip_grpallocfind(dev, &destipaddr); + if (!group) + { + nlldbg("Failed to allocate/find group: %08x\n", destipaddr); + return; + } + + /* Now handle the message based on the IGMP message type */ + + switch (IGMPBUF->type) + { + case IGMP_MEMBERSHIP_QUERY: + /* RFC 2236, 2.2. ax Response Time + * "The Max Response Time field is meaningful only in Membership Query + * messages, and specifies the maximum allowed time before sending a + * responding report in units of 1/10 second. In all other messages, it + * is set to zero by the sender and ignored by receivers. + */ + + /* Check if the query was sent to all systems */ + + if (uip_ipaddr_cmp(destipaddr, g_allsystems)) + { + /* Yes... Now check the if this this is a general or a group + * specific query. + * + * RFC 2236, 2.1. Type + * There are two sub-types of Membership Query messages: + * - General Query, used to learn which groups have members on an + * attached network. + * - Group-Specific Query, used to learn if a particular group + * has any members on an attached network. + * + * RFC 2236, 2.4. Group Address + * "In a Membership Query message, the group address field is + * set to zero when sending a General Query, and set to the + * group address being queried when sending a Group-Specific + * Query." + */ + + if (IGMPBUF->grpaddr == 0) + { + FAR struct igmp_group_s *member; + + /* This is the general query */ + + nllvdbg("General multicast query\n"); + if (IGMPBUF->maxresp == 0) + { + IGMP_STATINCR(uip_stat.igmp.v1_received); + IGMPBUF->maxresp = 10; + + nlldbg("V1 not implemented\n"); + } + + IGMP_STATINCR(uip_stat.igmp.query_received); + for (member = (FAR struct igmp_group_s *)dev->grplist.head; + member; + member = member->next) + { + /* Skip over the all systems group entry */ + + if (!uip_ipaddr_cmp(member->grpaddr, g_allsystems)) + { + ticks = uip_decisec2tick((int)IGMPBUF->maxresp); + if (IS_IDLEMEMBER(member->flags) || + uip_igmpcmptimer(member, ticks)) + { + uip_igmpstartticks(member, ticks); + CLR_IDLEMEMBER(member->flags); + } + } + } + } + else /* if (IGMPBUF->grpaddr != 0) */ + { + nllvdbg("Group-specific multicast queury\n"); + + /* We first need to re-lookup the group since we used dest last time. + * Use the incoming IPaddress! + */ + + IGMP_STATINCR(uip_stat.igmp.ucast_query); + grpaddr = uip_ip4addr_conv(IGMPBUF->grpaddr); + group = uip_grpallocfind(dev, &grpaddr); + ticks = uip_decisec2tick((int)IGMPBUF->maxresp); + if (IS_IDLEMEMBER(group->flags) || uip_igmpcmptimer(group, ticks)) + { + uip_igmpstartticks(group, ticks); + CLR_IDLEMEMBER(group->flags); + } + } + } + + /* Not sent to all systems -- Unicast query */ + + else if (group->grpaddr != 0) + { + nllvdbg("Unitcast queury\n"); + IGMP_STATINCR(uip_stat.igmp.ucast_query); + + nlldbg("Query to a specific group with the group address as destination\n"); + + ticks = uip_decisec2tick((int)IGMPBUF->maxresp); + if (IS_IDLEMEMBER(group->flags) || uip_igmpcmptimer(group, ticks)) + { + uip_igmpstartticks(group, ticks); + CLR_IDLEMEMBER(group->flags); + } + } + break; + + case IGMPv2_MEMBERSHIP_REPORT: + { + nllvdbg("Membership report\n"); + + IGMP_STATINCR(uip_stat.igmp.report_received); + if (!IS_IDLEMEMBER(group->flags)) + { + /* This is on a specific group we have already looked up */ + + wd_cancel(group->wdog); + SET_IDLEMEMBER(group->flags); + CLR_LASTREPORT(group->flags); + } + } + break; + + default: + { + nlldbg("Unexpected msg %02x\n", IGMPBUF->type); + } + break; + } +} + +#endif /* CONFIG_NET_IGMP */ diff --git a/nuttx/net/uip/uip_igmpjoin.c b/nuttx/net/uip/uip_igmpjoin.c index 34f319ec3..a7118051a 100755 --- a/nuttx/net/uip/uip_igmpjoin.c +++ b/nuttx/net/uip/uip_igmpjoin.c @@ -1,160 +1,160 @@ -/**************************************************************************** - * net/uip/uip_igmpjoin.c - * - * Copyright (C) 2010 Gregory Nutt. All rights reserved. - * Author: Gregory Nutt - * - * The NuttX implementation of IGMP was inspired by the IGMP add-on for the - * lwIP TCP/IP stack by Steve Reynolds: - * - * Copyright (c) 2002 CITEL Technologies Ltd. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of CITEL Technologies Ltd nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY CITEL TECHNOLOGIES AND CONTRIBUTORS ``AS IS'' - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL CITEL TECHNOLOGIES OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - ****************************************************************************/ - -/**************************************************************************** - * Included Files - ****************************************************************************/ - -#include - -#include -#include - -#include -#include -#include - -#include "uip_internal.h" - -#ifdef CONFIG_NET_IGMP - -/**************************************************************************** - * Pre-processor Definitions - ****************************************************************************/ - -/**************************************************************************** - * Private Functions - ****************************************************************************/ - -/**************************************************************************** - * Public Functions - ****************************************************************************/ - -/**************************************************************************** - * Name: igmp_joingroup - * - * Description: - * Add the specified group address to the group. - * - * RFC 2236, 3. Protocol Description: - * - * "When a host joins a multicast group, it should immediately transmit - * an unsolicited Version 2 Membership Report for that group, in case it - * is the first member of that group on the network. To cover the - * possibility of the initial Membership Report being lost or damaged, - * it is recommended that it be repeated once or twice after short - * delays [Unsolicited Report Interval]. (A simple way to accomplish - * this is to send the initial Version 2 Membership Report and then act - * as if a Group-Specific Query was received for that group, and set a - * timer appropriately)." - * ________________ - * | | - * | | - * | | - * | | - * +--------->| Non-Member |<---------+ - * | | | | - * | | | | - * | | | | - * | |________________| | - * | | | - * | leave group | join group | leave group - * | (stop timer, |(send report, | (send leave - * | send leave if | set flag, | if flag set) - * | flag set) | start timer) | - * ________|________ | ________|________ - * | |<---------+ | | - * | | | | - * | |<-------------------| | - * | | query received | | - * | Delaying Member | (start timer) | Idle Member | - * +---->| |------------------->| | - * | | | report received | | - * | | | (stop timer, | | - * | | | clear flag) | | - * | |_________________|------------------->|_________________| - * | query received | timer expired - * | (reset timer if | (send report, - * | Max Resp Time | set flag) - * | < current timer) | - * +-------------------+ - * - * Assumptions: - * This function cannot be called from interrupt handling logic! - * - ****************************************************************************/ - -int igmp_joingroup(struct uip_driver_s *dev, FAR const struct in_addr *grpaddr) -{ - struct igmp_group_s *group; - - DEBUGASSERT(dev && grpaddr); - - /* Check if a this address is already in the group */ - - group = uip_grpfind(dev, &grpaddr->s_addr); - if (!group) - { - /* No... allocate a new entry */ - - nvdbg("Join to new group: %08x\n", grpaddr->s_addr); - group = uip_grpalloc(dev, &grpaddr->s_addr); - IGMP_STATINCR(uip_stat.igmp.joins); - - /* Send the Membership Report */ - - IGMP_STATINCR(uip_stat.igmp.report_sched); - uip_igmpwaitmsg(group, IGMPv2_MEMBERSHIP_REPORT); - - /* And start the timer at 10*100 msec */ - - uip_igmpstarttimer(group, 10); - - /* Add the group (MAC) address to the ether drivers MAC filter list */ - - uip_addmcastmac(dev, (FAR uip_ipaddr_t *)&grpaddr->s_addr); - return OK; - } - - /* Return EEXIST if the address is already a member of the group */ - - return -EEXIST; -} - -#endif /* CONFIG_NET_IGMP */ +/**************************************************************************** + * net/uip/uip_igmpjoin.c + * + * Copyright (C) 2010 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * + * The NuttX implementation of IGMP was inspired by the IGMP add-on for the + * lwIP TCP/IP stack by Steve Reynolds: + * + * Copyright (c) 2002 CITEL Technologies Ltd. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of CITEL Technologies Ltd nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY CITEL TECHNOLOGIES AND CONTRIBUTORS ``AS IS'' + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL CITEL TECHNOLOGIES OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include + +#include +#include + +#include +#include +#include + +#include "uip_internal.h" + +#ifdef CONFIG_NET_IGMP + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: igmp_joingroup + * + * Description: + * Add the specified group address to the group. + * + * RFC 2236, 3. Protocol Description: + * + * "When a host joins a multicast group, it should immediately transmit + * an unsolicited Version 2 Membership Report for that group, in case it + * is the first member of that group on the network. To cover the + * possibility of the initial Membership Report being lost or damaged, + * it is recommended that it be repeated once or twice after short + * delays [Unsolicited Report Interval]. (A simple way to accomplish + * this is to send the initial Version 2 Membership Report and then act + * as if a Group-Specific Query was received for that group, and set a + * timer appropriately)." + * ________________ + * | | + * | | + * | | + * | | + * +--------->| Non-Member |<---------+ + * | | | | + * | | | | + * | | | | + * | |________________| | + * | | | + * | leave group | join group | leave group + * | (stop timer, |(send report, | (send leave + * | send leave if | set flag, | if flag set) + * | flag set) | start timer) | + * ________|________ | ________|________ + * | |<---------+ | | + * | | | | + * | |<-------------------| | + * | | query received | | + * | Delaying Member | (start timer) | Idle Member | + * +---->| |------------------->| | + * | | | report received | | + * | | | (stop timer, | | + * | | | clear flag) | | + * | |_________________|------------------->|_________________| + * | query received | timer expired + * | (reset timer if | (send report, + * | Max Resp Time | set flag) + * | < current timer) | + * +-------------------+ + * + * Assumptions: + * This function cannot be called from interrupt handling logic! + * + ****************************************************************************/ + +int igmp_joingroup(struct uip_driver_s *dev, FAR const struct in_addr *grpaddr) +{ + struct igmp_group_s *group; + + DEBUGASSERT(dev && grpaddr); + + /* Check if a this address is already in the group */ + + group = uip_grpfind(dev, &grpaddr->s_addr); + if (!group) + { + /* No... allocate a new entry */ + + nvdbg("Join to new group: %08x\n", grpaddr->s_addr); + group = uip_grpalloc(dev, &grpaddr->s_addr); + IGMP_STATINCR(uip_stat.igmp.joins); + + /* Send the Membership Report */ + + IGMP_STATINCR(uip_stat.igmp.report_sched); + uip_igmpwaitmsg(group, IGMPv2_MEMBERSHIP_REPORT); + + /* And start the timer at 10*100 msec */ + + uip_igmpstarttimer(group, 10); + + /* Add the group (MAC) address to the ether drivers MAC filter list */ + + uip_addmcastmac(dev, (FAR uip_ipaddr_t *)&grpaddr->s_addr); + return OK; + } + + /* Return EEXIST if the address is already a member of the group */ + + return -EEXIST; +} + +#endif /* CONFIG_NET_IGMP */ diff --git a/nuttx/net/uip/uip_igmpleave.c b/nuttx/net/uip/uip_igmpleave.c index 276622399..23067f70a 100755 --- a/nuttx/net/uip/uip_igmpleave.c +++ b/nuttx/net/uip/uip_igmpleave.c @@ -1,182 +1,182 @@ -/**************************************************************************** - * net/uip/uip_igmpleave.c - * - * Copyright (C) 2010 Gregory Nutt. All rights reserved. - * Author: Gregory Nutt - * - * The NuttX implementation of IGMP was inspired by the IGMP add-on for the - * lwIP TCP/IP stack by Steve Reynolds: - * - * Copyright (c) 2002 CITEL Technologies Ltd. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of CITEL Technologies Ltd nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY CITEL TECHNOLOGIES AND CONTRIBUTORS ``AS IS'' - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL CITEL TECHNOLOGIES OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - ****************************************************************************/ - -/**************************************************************************** - * Included Files - ****************************************************************************/ - -#include - -#include -#include -#include - -#include -#include -#include - -#include "uip_internal.h" - -#ifdef CONFIG_NET_IGMP - -/**************************************************************************** - * Pre-processor Definitions - ****************************************************************************/ - -/**************************************************************************** - * Private Functions - ****************************************************************************/ - -/**************************************************************************** - * Public Functions - ****************************************************************************/ - -/**************************************************************************** - * Name: igmp_leavegroup - * - * Description: - * Remove the specified group address to the group. - * - * RFC 2236, 3. Protocol Description: - * - * "When a host leaves a multicast group, if it was the last host to - * reply to a Query with a Membership Report for that group, it SHOULD - * send a Leave Group message to the all-routers multicast group - * (224.0.0.2). If it was not the last host to reply to a Query, it MAY - * send nothing as there must be another member on the subnet. This is - * an optimization to reduce traffic; a host without sufficient storage - * to remember whether or not it was the last host to reply MAY always - * send a Leave Group message when it leaves a group. Routers SHOULD - * accept a Leave Group message addressed to the group being left, in - * order to accommodate implementations of an earlier version of this - * standard. Leave Group messages are addressed to the all-routers - * group because other group members have no need to know that a host - * has left the group, but it does no harm to address the message to the - * group." - * - * ________________ - * | | - * | | - * | | - * | | - * +--------->| Non-Member |<---------+ - * | | | | - * | | | | - * | | | | - * | |________________| | - * | | | - * | leave group | join group | leave group - * | (stop timer, |(send report, | (send leave - * | send leave if | set flag, | if flag set) - * | flag set) | start timer) | - * ________|________ | ________|________ - * | |<---------+ | | - * | | | | - * | |<-------------------| | - * | | query received | | - * | Delaying Member | (start timer) | Idle Member | - * +---->| |------------------->| | - * | | | report received | | - * | | | (stop timer, | | - * | | | clear flag) | | - * | |_________________|------------------->|_________________| - * | query received | timer expired - * | (reset timer if | (send report, - * | Max Resp Time | set flag) - * | < current timer) | - * +-------------------+ - * - * Assumptions: - * This function cannot be called from interrupt handling logic! - * - ****************************************************************************/ - -int igmp_leavegroup(struct uip_driver_s *dev, FAR const struct in_addr *grpaddr) -{ - struct igmp_group_s *group; - irqstate_t flags; - - DEBUGASSERT(dev && grpaddr); - - /* Find the entry corresponding to the address leaving the group */ - - group = uip_grpfind(dev, &grpaddr->s_addr); - ndbg("Leaving group: %p\n", group); - if (group) - { - /* Cancel the timer and discard any queued Membership Reports. Canceling - * the timer will prevent any new Membership Reports from being sent; - * clearing the flags will discard any pending Membership Reports that - * could interfere with the Leave Group. - */ - - flags = irqsave(); - wd_cancel(group->wdog); - CLR_SCHEDMSG(group->flags); - CLR_WAITMSG(group->flags); - irqrestore(flags); - - IGMP_STATINCR(uip_stat.igmp.leaves); - - /* Send a leave if the flag is set according to the state diagram */ - - if (IS_LASTREPORT(group->flags)) - { - ndbg("Schedule Leave Group message\n"); - IGMP_STATINCR(uip_stat.igmp.leave_sched); - uip_igmpwaitmsg(group, IGMP_LEAVE_GROUP); - } - - /* Free the group structure (state is now Non-Member */ - - uip_grpfree(dev, group); - - /* And remove the group address from the ethernet drivers MAC filter set */ - - uip_removemcastmac(dev, (FAR uip_ipaddr_t *)&grpaddr->s_addr); - return OK; - } - - /* Return ENOENT if the address is not a member of the group */ - - nvdbg("Return -ENOENT\n"); - return -ENOENT; -} - -#endif /* CONFIG_NET_IGMP */ +/**************************************************************************** + * net/uip/uip_igmpleave.c + * + * Copyright (C) 2010 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * + * The NuttX implementation of IGMP was inspired by the IGMP add-on for the + * lwIP TCP/IP stack by Steve Reynolds: + * + * Copyright (c) 2002 CITEL Technologies Ltd. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of CITEL Technologies Ltd nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY CITEL TECHNOLOGIES AND CONTRIBUTORS ``AS IS'' + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL CITEL TECHNOLOGIES OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include + +#include +#include +#include + +#include +#include +#include + +#include "uip_internal.h" + +#ifdef CONFIG_NET_IGMP + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: igmp_leavegroup + * + * Description: + * Remove the specified group address to the group. + * + * RFC 2236, 3. Protocol Description: + * + * "When a host leaves a multicast group, if it was the last host to + * reply to a Query with a Membership Report for that group, it SHOULD + * send a Leave Group message to the all-routers multicast group + * (224.0.0.2). If it was not the last host to reply to a Query, it MAY + * send nothing as there must be another member on the subnet. This is + * an optimization to reduce traffic; a host without sufficient storage + * to remember whether or not it was the last host to reply MAY always + * send a Leave Group message when it leaves a group. Routers SHOULD + * accept a Leave Group message addressed to the group being left, in + * order to accommodate implementations of an earlier version of this + * standard. Leave Group messages are addressed to the all-routers + * group because other group members have no need to know that a host + * has left the group, but it does no harm to address the message to the + * group." + * + * ________________ + * | | + * | | + * | | + * | | + * +--------->| Non-Member |<---------+ + * | | | | + * | | | | + * | | | | + * | |________________| | + * | | | + * | leave group | join group | leave group + * | (stop timer, |(send report, | (send leave + * | send leave if | set flag, | if flag set) + * | flag set) | start timer) | + * ________|________ | ________|________ + * | |<---------+ | | + * | | | | + * | |<-------------------| | + * | | query received | | + * | Delaying Member | (start timer) | Idle Member | + * +---->| |------------------->| | + * | | | report received | | + * | | | (stop timer, | | + * | | | clear flag) | | + * | |_________________|------------------->|_________________| + * | query received | timer expired + * | (reset timer if | (send report, + * | Max Resp Time | set flag) + * | < current timer) | + * +-------------------+ + * + * Assumptions: + * This function cannot be called from interrupt handling logic! + * + ****************************************************************************/ + +int igmp_leavegroup(struct uip_driver_s *dev, FAR const struct in_addr *grpaddr) +{ + struct igmp_group_s *group; + irqstate_t flags; + + DEBUGASSERT(dev && grpaddr); + + /* Find the entry corresponding to the address leaving the group */ + + group = uip_grpfind(dev, &grpaddr->s_addr); + ndbg("Leaving group: %p\n", group); + if (group) + { + /* Cancel the timer and discard any queued Membership Reports. Canceling + * the timer will prevent any new Membership Reports from being sent; + * clearing the flags will discard any pending Membership Reports that + * could interfere with the Leave Group. + */ + + flags = irqsave(); + wd_cancel(group->wdog); + CLR_SCHEDMSG(group->flags); + CLR_WAITMSG(group->flags); + irqrestore(flags); + + IGMP_STATINCR(uip_stat.igmp.leaves); + + /* Send a leave if the flag is set according to the state diagram */ + + if (IS_LASTREPORT(group->flags)) + { + ndbg("Schedule Leave Group message\n"); + IGMP_STATINCR(uip_stat.igmp.leave_sched); + uip_igmpwaitmsg(group, IGMP_LEAVE_GROUP); + } + + /* Free the group structure (state is now Non-Member */ + + uip_grpfree(dev, group); + + /* And remove the group address from the ethernet drivers MAC filter set */ + + uip_removemcastmac(dev, (FAR uip_ipaddr_t *)&grpaddr->s_addr); + return OK; + } + + /* Return ENOENT if the address is not a member of the group */ + + nvdbg("Return -ENOENT\n"); + return -ENOENT; +} + +#endif /* CONFIG_NET_IGMP */ diff --git a/nuttx/net/uip/uip_igmpmsg.c b/nuttx/net/uip/uip_igmpmsg.c index 44d0f2459..d9837d04a 100755 --- a/nuttx/net/uip/uip_igmpmsg.c +++ b/nuttx/net/uip/uip_igmpmsg.c @@ -1,139 +1,139 @@ -/**************************************************************************** - * net/uip/uip_igmpmgs.c - * - * Copyright (C) 2010 Gregory Nutt. All rights reserved. - * Author: Gregory Nutt - * - * The NuttX implementation of IGMP was inspired by the IGMP add-on for the - * lwIP TCP/IP stack by Steve Reynolds: - * - * Copyright (c) 2002 CITEL Technologies Ltd. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of CITEL Technologies Ltd nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY CITEL TECHNOLOGIES AND CONTRIBUTORS ``AS IS'' - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL CITEL TECHNOLOGIES OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - ****************************************************************************/ - -/**************************************************************************** - * Included Files - ****************************************************************************/ - -#include - -#include -#include - -#include -#include -#include - -#include "uip_internal.h" - -#ifdef CONFIG_NET_IGMP - -/**************************************************************************** - * Pre-processor Definitions - ****************************************************************************/ - -/**************************************************************************** - * Private Functions - ****************************************************************************/ - -/**************************************************************************** - * Public Functions - ****************************************************************************/ - -/**************************************************************************** - * Name: uip_igmpschedmsg - * - * Description: - * Schedule a message to be send at the next driver polling interval. - * - * Assumptions: - * This function may be called in most any context. - * - ****************************************************************************/ - -void uip_igmpschedmsg(FAR struct igmp_group_s *group, uint8_t msgid) -{ - irqstate_t flags = irqsave(); - - /* The following should be atomic */ - - flags = irqsave(); - DEBUGASSERT(!IS_SCHEDMSG(group->flags)); - group->msgid = msgid; - SET_SCHEDMSG(group->flags); - irqrestore(flags); -} - -/**************************************************************************** - * Name: uip_igmpwaitmsg - * - * Description: - * Schedule a message to be send at the next driver polling interval and - * block, waiting for the message to be sent. - * - * Assumptions: - * This function cannot be called from an interrupt handler (if you try it, - * sem_wait will assert). - * - ****************************************************************************/ - -void uip_igmpwaitmsg(FAR struct igmp_group_s *group, uint8_t msgid) -{ - irqstate_t flags; - - /* Schedule to send the message */ - - flags = irqsave(); - DEBUGASSERT(!IS_WAITMSG(group->flags)); - SET_WAITMSG(group->flags); - uip_igmpschedmsg(group, msgid); - - /* Then wait for the message to be sent */ - - while (IS_SCHEDMSG(group->flags)) - { - /* Wait for the semaphore to be posted */ - - while (sem_wait(&group->sem) != 0) - { - /* The only error that should occur from sem_wait() is if - * the wait is awakened by a signal. - */ - - ASSERT(errno == EINTR); - } - } - - /* The message has been sent and we are no longer waiting */ - - CLR_WAITMSG(group->flags); - irqrestore(flags); -} - -#endif /* CONFIG_NET_IGMP */ +/**************************************************************************** + * net/uip/uip_igmpmgs.c + * + * Copyright (C) 2010 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * + * The NuttX implementation of IGMP was inspired by the IGMP add-on for the + * lwIP TCP/IP stack by Steve Reynolds: + * + * Copyright (c) 2002 CITEL Technologies Ltd. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of CITEL Technologies Ltd nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY CITEL TECHNOLOGIES AND CONTRIBUTORS ``AS IS'' + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL CITEL TECHNOLOGIES OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include + +#include +#include + +#include +#include +#include + +#include "uip_internal.h" + +#ifdef CONFIG_NET_IGMP + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: uip_igmpschedmsg + * + * Description: + * Schedule a message to be send at the next driver polling interval. + * + * Assumptions: + * This function may be called in most any context. + * + ****************************************************************************/ + +void uip_igmpschedmsg(FAR struct igmp_group_s *group, uint8_t msgid) +{ + irqstate_t flags = irqsave(); + + /* The following should be atomic */ + + flags = irqsave(); + DEBUGASSERT(!IS_SCHEDMSG(group->flags)); + group->msgid = msgid; + SET_SCHEDMSG(group->flags); + irqrestore(flags); +} + +/**************************************************************************** + * Name: uip_igmpwaitmsg + * + * Description: + * Schedule a message to be send at the next driver polling interval and + * block, waiting for the message to be sent. + * + * Assumptions: + * This function cannot be called from an interrupt handler (if you try it, + * sem_wait will assert). + * + ****************************************************************************/ + +void uip_igmpwaitmsg(FAR struct igmp_group_s *group, uint8_t msgid) +{ + irqstate_t flags; + + /* Schedule to send the message */ + + flags = irqsave(); + DEBUGASSERT(!IS_WAITMSG(group->flags)); + SET_WAITMSG(group->flags); + uip_igmpschedmsg(group, msgid); + + /* Then wait for the message to be sent */ + + while (IS_SCHEDMSG(group->flags)) + { + /* Wait for the semaphore to be posted */ + + while (sem_wait(&group->sem) != 0) + { + /* The only error that should occur from sem_wait() is if + * the wait is awakened by a signal. + */ + + ASSERT(errno == EINTR); + } + } + + /* The message has been sent and we are no longer waiting */ + + CLR_WAITMSG(group->flags); + irqrestore(flags); +} + +#endif /* CONFIG_NET_IGMP */ diff --git a/nuttx/net/uip/uip_igmppoll.c b/nuttx/net/uip/uip_igmppoll.c index b31f2d82c..9ec96ed43 100755 --- a/nuttx/net/uip/uip_igmppoll.c +++ b/nuttx/net/uip/uip_igmppoll.c @@ -1,176 +1,176 @@ -/**************************************************************************** - * net/uip/uip_igmppoll.c - * - * Copyright (C) 2010 Gregory Nutt. All rights reserved. - * Author: Gregory Nutt - * - * The NuttX implementation of IGMP was inspired by the IGMP add-on for the - * lwIP TCP/IP stack by Steve Reynolds: - * - * Copyright (c) 2002 CITEL Technologies Ltd. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of CITEL Technologies Ltd nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY CITEL TECHNOLOGIES AND CONTRIBUTORS ``AS IS'' - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL CITEL TECHNOLOGIES OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - ****************************************************************************/ - -/**************************************************************************** - * Included Files - ****************************************************************************/ - -#include - -#include -#include - -#include -#include -#include - -#include "uip_internal.h" - -#ifdef CONFIG_NET_IGMP - -/**************************************************************************** - * Pre-processor Definitions - ****************************************************************************/ - -/**************************************************************************** - * Private Functions - ****************************************************************************/ - -/**************************************************************************** - * Name: uip_schedsend - * - * Description: - * Construct the . - * - * Returned Value: - * Returns a non-zero value if a IGP message is sent. - * - * Assumptions: - * This function is called from the driver polling logic... probably within - * an interrupt handler. - * - ****************************************************************************/ - -static inline void uip_schedsend(FAR struct uip_driver_s *dev, FAR struct igmp_group_s *group) -{ - uip_ipaddr_t *dest; - - /* Check what kind of messsage we need to send. There are only two - * possibilities: - */ - - if (group->msgid == IGMPv2_MEMBERSHIP_REPORT) - { - dest = &group->grpaddr; - nllvdbg("Send IGMPv2_MEMBERSHIP_REPORT, dest=%08x flags=%02x\n", - *dest, group->flags); - IGMP_STATINCR(uip_stat.igmp.report_sched); - SET_LASTREPORT(group->flags); /* Remember we were the last to report */ - } - else - { - DEBUGASSERT(group->msgid == IGMP_LEAVE_GROUP); - dest = &g_allrouters; - nllvdbg("Send IGMP_LEAVE_GROUP, dest=%08x flags=%02x\n", - *dest, group->flags); - IGMP_STATINCR(uip_stat.igmp.leave_sched); - } - - /* Send the message */ - - uip_igmpsend(dev, group, dest); - - /* Indicate that the message has been sent */ - - CLR_SCHEDMSG(group->flags); - group->msgid = 0; - - /* If there is a thread waiting fore the message to be sent, wake it up */ - - if (IS_WAITMSG(group->flags)) - { - nllvdbg("Awakening waiter\n"); - sem_post(&group->sem); - } -} - -/**************************************************************************** - * Public Functions - ****************************************************************************/ - -/**************************************************************************** - * Name: uip_igmppoll - * - * Description: - * Poll the groups associated with the device to see if any IGMP messages - * are pending transfer. - * - * Returned Value: - * Returns a non-zero value if a IGP message is sent. - * - * Assumptions: - * This function is called from the driver polling logic... probably within - * an interrupt handler. - * - ****************************************************************************/ - -void uip_igmppoll(FAR struct uip_driver_s *dev) -{ - FAR struct igmp_group_s *group; - - nllvdbg("Entry\n"); - - /* Setup the poll operation */ - - dev->d_appdata = &dev->d_buf[UIP_LLH_LEN + UIP_IPIGMPH_LEN]; - dev->d_snddata = &dev->d_buf[UIP_LLH_LEN + UIP_IPIGMPH_LEN]; - - dev->d_len = 0; - dev->d_sndlen = 0; - - /* Check each member of the group */ - - for (group = (FAR struct igmp_group_s *)dev->grplist.head; group; group = group->next) - { - /* Does this member have a pending outgoing message? */ - - if (IS_SCHEDMSG(group->flags)) - { - /* Yes, create the IGMP message in the driver buffer */ - - uip_schedsend(dev, group); - - /* Mark the message as sent and break out */ - - CLR_SCHEDMSG(group->flags); - break; - } - } -} -#endif /* CONFIG_NET_IGMP */ +/**************************************************************************** + * net/uip/uip_igmppoll.c + * + * Copyright (C) 2010 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * + * The NuttX implementation of IGMP was inspired by the IGMP add-on for the + * lwIP TCP/IP stack by Steve Reynolds: + * + * Copyright (c) 2002 CITEL Technologies Ltd. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of CITEL Technologies Ltd nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY CITEL TECHNOLOGIES AND CONTRIBUTORS ``AS IS'' + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL CITEL TECHNOLOGIES OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include + +#include +#include + +#include +#include +#include + +#include "uip_internal.h" + +#ifdef CONFIG_NET_IGMP + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: uip_schedsend + * + * Description: + * Construct the . + * + * Returned Value: + * Returns a non-zero value if a IGP message is sent. + * + * Assumptions: + * This function is called from the driver polling logic... probably within + * an interrupt handler. + * + ****************************************************************************/ + +static inline void uip_schedsend(FAR struct uip_driver_s *dev, FAR struct igmp_group_s *group) +{ + uip_ipaddr_t *dest; + + /* Check what kind of messsage we need to send. There are only two + * possibilities: + */ + + if (group->msgid == IGMPv2_MEMBERSHIP_REPORT) + { + dest = &group->grpaddr; + nllvdbg("Send IGMPv2_MEMBERSHIP_REPORT, dest=%08x flags=%02x\n", + *dest, group->flags); + IGMP_STATINCR(uip_stat.igmp.report_sched); + SET_LASTREPORT(group->flags); /* Remember we were the last to report */ + } + else + { + DEBUGASSERT(group->msgid == IGMP_LEAVE_GROUP); + dest = &g_allrouters; + nllvdbg("Send IGMP_LEAVE_GROUP, dest=%08x flags=%02x\n", + *dest, group->flags); + IGMP_STATINCR(uip_stat.igmp.leave_sched); + } + + /* Send the message */ + + uip_igmpsend(dev, group, dest); + + /* Indicate that the message has been sent */ + + CLR_SCHEDMSG(group->flags); + group->msgid = 0; + + /* If there is a thread waiting fore the message to be sent, wake it up */ + + if (IS_WAITMSG(group->flags)) + { + nllvdbg("Awakening waiter\n"); + sem_post(&group->sem); + } +} + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: uip_igmppoll + * + * Description: + * Poll the groups associated with the device to see if any IGMP messages + * are pending transfer. + * + * Returned Value: + * Returns a non-zero value if a IGP message is sent. + * + * Assumptions: + * This function is called from the driver polling logic... probably within + * an interrupt handler. + * + ****************************************************************************/ + +void uip_igmppoll(FAR struct uip_driver_s *dev) +{ + FAR struct igmp_group_s *group; + + nllvdbg("Entry\n"); + + /* Setup the poll operation */ + + dev->d_appdata = &dev->d_buf[UIP_LLH_LEN + UIP_IPIGMPH_LEN]; + dev->d_snddata = &dev->d_buf[UIP_LLH_LEN + UIP_IPIGMPH_LEN]; + + dev->d_len = 0; + dev->d_sndlen = 0; + + /* Check each member of the group */ + + for (group = (FAR struct igmp_group_s *)dev->grplist.head; group; group = group->next) + { + /* Does this member have a pending outgoing message? */ + + if (IS_SCHEDMSG(group->flags)) + { + /* Yes, create the IGMP message in the driver buffer */ + + uip_schedsend(dev, group); + + /* Mark the message as sent and break out */ + + CLR_SCHEDMSG(group->flags); + break; + } + } +} +#endif /* CONFIG_NET_IGMP */ diff --git a/nuttx/net/uip/uip_igmptimer.c b/nuttx/net/uip/uip_igmptimer.c index 98d95479d..2ae844341 100755 --- a/nuttx/net/uip/uip_igmptimer.c +++ b/nuttx/net/uip/uip_igmptimer.c @@ -1,257 +1,257 @@ -/**************************************************************************** - * net/uip/uip_igmptimer.c - * - * Copyright (C) 2010 Gregory Nutt. All rights reserved. - * Author: Gregory Nutt - * - * The NuttX implementation of IGMP was inspired by the IGMP add-on for the - * lwIP TCP/IP stack by Steve Reynolds: - * - * Copyright (c) 2002 CITEL Technologies Ltd. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of CITEL Technologies Ltd nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY CITEL TECHNOLOGIES AND CONTRIBUTORS ``AS IS'' - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL CITEL TECHNOLOGIES OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - ****************************************************************************/ - -/**************************************************************************** - * Included Files - ****************************************************************************/ - -#include -#include - -#include -#include -#include - -#include -#include -#include - -#include "uip_internal.h" - -#ifdef CONFIG_NET_IGMP - -/**************************************************************************** - * Pre-processor Definitions - ****************************************************************************/ - -/* Debug ********************************************************************/ - -#undef IGMP_GTMRDEBUG /* Define to enable detailed IGMP group debug */ - -#ifndef CONFIG_NET_IGMP -# undef IGMP_GTMRDEBUG -#endif - -#ifdef CONFIG_CPP_HAVE_VARARGS -# ifdef IGMP_GTMRDEBUG -# define gtmrdbg(format, arg...) ndbg(format, ##arg) -# define gtmrlldbg(format, arg...) nlldbg(format, ##arg) -# define gtmrvdbg(format, arg...) nvdbg(format, ##arg) -# define gtmrllvdbg(format, arg...) nllvdbg(format, ##arg) -# else -# define gtmrdbg(x...) -# define gtmrlldbg(x...) -# define gtmrvdbg(x...) -# define gtmrllvdbg(x...) -# endif -#else -# ifdef IGMP_GTMRDEBUG -# define gtmrdbg ndbg -# define gtmrlldbg nlldbg -# define gtmrvdbg nvdbg -# define gtmrllvdbg nllvdbg -# else -# define gtmrdbg (void) -# define gtmrlldbg (void) -# define gtmrvdbg (void) -# define gtmrllvdbg (void) -# endif -#endif - -/**************************************************************************** - * Private Functions - ****************************************************************************/ - -/**************************************************************************** - * Name: uip_igmptimeout - * - * Description: - * Timeout watchdog handler. - * - * Assumptions: - * This function is called from the wdog timer handler which runs in the - * context of the timer interrupt handler. - * - ****************************************************************************/ - -static void uip_igmptimeout(int argc, uint32_t arg, ...) -{ - FAR struct igmp_group_s *group; - - /* If the state is DELAYING_MEMBER then we send a report for this group */ - - nllvdbg("Timeout!\n"); - group = (FAR struct igmp_group_s *)arg; - DEBUGASSERT(argc == 1 && group); - - /* If the group exists and is no an IDLE MEMBER, then it must be a DELAYING - * member. Race conditions are avoided because (1) the timer is not started - * until after the first IGMPv2_MEMBERSHIP_REPORT during the join, and (2) - * the timer is canceled before sending the IGMP_LEAVE_GROUP during a leave. - */ - - if (!IS_IDLEMEMBER(group->flags)) - { - /* Schedule (and forget) the Membership Report. NOTE: - * Since we are executing from a timer interrupt, we cannot wait - * for the message to be sent. - */ - - IGMP_STATINCR(uip_stat.igmp.report_sched); - uip_igmpschedmsg(group, IGMPv2_MEMBERSHIP_REPORT); - - /* Also note: The Membership Report is sent at most two times becasue - * the timer is not reset here. Hmm.. does this mean that the group - * is stranded if both reports were lost? This is consistent with the - * RFC that states: "To cover the possibility of the initial Membership - * Report being lost or damaged, it is recommended that it be repeated - * once or twice after shortdelays [Unsolicited Report Interval]..." - */ - } -} - -/**************************************************************************** - * Public Functions - ****************************************************************************/ - -/**************************************************************************** - * Name: uip_igmpstarttimer - * - * Description: - * Start the IGMP timer. - * - * Assumptions: - * This function may be called from most any context. - * - ****************************************************************************/ - -int uip_decisec2tick(int decisecs) -{ - /* Convert the deci-second comparison value to clock ticks. The CLK_TCK - * value is the number of clock ticks per second; decisecs argument is the - * maximum delay in 100's of milliseconds. CLK_TCK/10 is then the number - * of clock ticks in 100 milliseconds. - */ - - return CLK_TCK * decisecs / 10; -} - -/**************************************************************************** - * Name: uip_igmpstartticks and uip_igmpstarttimer - * - * Description: - * Start the IGMP timer with differing time units (ticks or deciseconds). - * - * Assumptions: - * This function may be called from most any context. - * - ****************************************************************************/ - -void uip_igmpstartticks(FAR struct igmp_group_s *group, int ticks) -{ - int ret; - - /* Start the timer */ - - gtmrlldbg("ticks: %d\n", ticks); - ret = wd_start(group->wdog, ticks, uip_igmptimeout, 1, (uint32_t)group); - DEBUGASSERT(ret == OK); -} - -void uip_igmpstarttimer(FAR struct igmp_group_s *group, uint8_t decisecs) -{ - /* Convert the decisec value to system clock ticks and start the timer. - * Important!! this should be a random timer from 0 to decisecs - */ - - gtmrdbg("decisecs: %d\n", decisecs); - uip_igmpstartticks(group, uip_decisec2tick(decisecs)); -} - -/**************************************************************************** - * Name: uip_igmpcmptimer - * - * Description: - * Compare the timer remaining on the watching timer to the deci-second - * value. If maxticks > ticks-remaining, then (1) cancel the timer (to - * avoid race conditions) and return true. - * - * Assumptions: - * This function may be called from most any context. If true is retuend - * then the caller must call uip_igmpstartticks() to restart the timer - * - ****************************************************************************/ - -bool uip_igmpcmptimer(FAR struct igmp_group_s *group, int maxticks) -{ - irqstate_t flags; - int remaining; - - /* Disable interrupts so that there is no race condition with the actual - * timer expiration. - */ - - flags = irqsave(); - - /* Get the timer remaining on the watchdog. A time of <= zero means that - * the watchdog was never started. - */ - - remaining = wd_gettime(group->wdog); - - /* A remaining time of zero means that the watchdog was never started - * or has already expired. That case should be covered in the following - * test as well. - */ - - gtmrdbg("maxticks: %d remaining: %d\n", maxticks, remaining); - if (maxticks > remaining) - { - /* Cancel the watchdog timer and return true */ - - wd_cancel(group->wdog); - irqrestore(flags); - return true; - } - - irqrestore(flags); - return false; -} - -#endif /* CONFIG_NET_IGMP */ +/**************************************************************************** + * net/uip/uip_igmptimer.c + * + * Copyright (C) 2010 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * + * The NuttX implementation of IGMP was inspired by the IGMP add-on for the + * lwIP TCP/IP stack by Steve Reynolds: + * + * Copyright (c) 2002 CITEL Technologies Ltd. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of CITEL Technologies Ltd nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY CITEL TECHNOLOGIES AND CONTRIBUTORS ``AS IS'' + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL CITEL TECHNOLOGIES OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include +#include + +#include +#include +#include + +#include +#include +#include + +#include "uip_internal.h" + +#ifdef CONFIG_NET_IGMP + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +/* Debug ********************************************************************/ + +#undef IGMP_GTMRDEBUG /* Define to enable detailed IGMP group debug */ + +#ifndef CONFIG_NET_IGMP +# undef IGMP_GTMRDEBUG +#endif + +#ifdef CONFIG_CPP_HAVE_VARARGS +# ifdef IGMP_GTMRDEBUG +# define gtmrdbg(format, arg...) ndbg(format, ##arg) +# define gtmrlldbg(format, arg...) nlldbg(format, ##arg) +# define gtmrvdbg(format, arg...) nvdbg(format, ##arg) +# define gtmrllvdbg(format, arg...) nllvdbg(format, ##arg) +# else +# define gtmrdbg(x...) +# define gtmrlldbg(x...) +# define gtmrvdbg(x...) +# define gtmrllvdbg(x...) +# endif +#else +# ifdef IGMP_GTMRDEBUG +# define gtmrdbg ndbg +# define gtmrlldbg nlldbg +# define gtmrvdbg nvdbg +# define gtmrllvdbg nllvdbg +# else +# define gtmrdbg (void) +# define gtmrlldbg (void) +# define gtmrvdbg (void) +# define gtmrllvdbg (void) +# endif +#endif + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: uip_igmptimeout + * + * Description: + * Timeout watchdog handler. + * + * Assumptions: + * This function is called from the wdog timer handler which runs in the + * context of the timer interrupt handler. + * + ****************************************************************************/ + +static void uip_igmptimeout(int argc, uint32_t arg, ...) +{ + FAR struct igmp_group_s *group; + + /* If the state is DELAYING_MEMBER then we send a report for this group */ + + nllvdbg("Timeout!\n"); + group = (FAR struct igmp_group_s *)arg; + DEBUGASSERT(argc == 1 && group); + + /* If the group exists and is no an IDLE MEMBER, then it must be a DELAYING + * member. Race conditions are avoided because (1) the timer is not started + * until after the first IGMPv2_MEMBERSHIP_REPORT during the join, and (2) + * the timer is canceled before sending the IGMP_LEAVE_GROUP during a leave. + */ + + if (!IS_IDLEMEMBER(group->flags)) + { + /* Schedule (and forget) the Membership Report. NOTE: + * Since we are executing from a timer interrupt, we cannot wait + * for the message to be sent. + */ + + IGMP_STATINCR(uip_stat.igmp.report_sched); + uip_igmpschedmsg(group, IGMPv2_MEMBERSHIP_REPORT); + + /* Also note: The Membership Report is sent at most two times becasue + * the timer is not reset here. Hmm.. does this mean that the group + * is stranded if both reports were lost? This is consistent with the + * RFC that states: "To cover the possibility of the initial Membership + * Report being lost or damaged, it is recommended that it be repeated + * once or twice after shortdelays [Unsolicited Report Interval]..." + */ + } +} + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: uip_igmpstarttimer + * + * Description: + * Start the IGMP timer. + * + * Assumptions: + * This function may be called from most any context. + * + ****************************************************************************/ + +int uip_decisec2tick(int decisecs) +{ + /* Convert the deci-second comparison value to clock ticks. The CLK_TCK + * value is the number of clock ticks per second; decisecs argument is the + * maximum delay in 100's of milliseconds. CLK_TCK/10 is then the number + * of clock ticks in 100 milliseconds. + */ + + return CLK_TCK * decisecs / 10; +} + +/**************************************************************************** + * Name: uip_igmpstartticks and uip_igmpstarttimer + * + * Description: + * Start the IGMP timer with differing time units (ticks or deciseconds). + * + * Assumptions: + * This function may be called from most any context. + * + ****************************************************************************/ + +void uip_igmpstartticks(FAR struct igmp_group_s *group, int ticks) +{ + int ret; + + /* Start the timer */ + + gtmrlldbg("ticks: %d\n", ticks); + ret = wd_start(group->wdog, ticks, uip_igmptimeout, 1, (uint32_t)group); + DEBUGASSERT(ret == OK); +} + +void uip_igmpstarttimer(FAR struct igmp_group_s *group, uint8_t decisecs) +{ + /* Convert the decisec value to system clock ticks and start the timer. + * Important!! this should be a random timer from 0 to decisecs + */ + + gtmrdbg("decisecs: %d\n", decisecs); + uip_igmpstartticks(group, uip_decisec2tick(decisecs)); +} + +/**************************************************************************** + * Name: uip_igmpcmptimer + * + * Description: + * Compare the timer remaining on the watching timer to the deci-second + * value. If maxticks > ticks-remaining, then (1) cancel the timer (to + * avoid race conditions) and return true. + * + * Assumptions: + * This function may be called from most any context. If true is retuend + * then the caller must call uip_igmpstartticks() to restart the timer + * + ****************************************************************************/ + +bool uip_igmpcmptimer(FAR struct igmp_group_s *group, int maxticks) +{ + irqstate_t flags; + int remaining; + + /* Disable interrupts so that there is no race condition with the actual + * timer expiration. + */ + + flags = irqsave(); + + /* Get the timer remaining on the watchdog. A time of <= zero means that + * the watchdog was never started. + */ + + remaining = wd_gettime(group->wdog); + + /* A remaining time of zero means that the watchdog was never started + * or has already expired. That case should be covered in the following + * test as well. + */ + + gtmrdbg("maxticks: %d remaining: %d\n", maxticks, remaining); + if (maxticks > remaining) + { + /* Cancel the watchdog timer and return true */ + + wd_cancel(group->wdog); + irqrestore(flags); + return true; + } + + irqrestore(flags); + return false; +} + +#endif /* CONFIG_NET_IGMP */ -- cgit v1.2.3