commits February 2010

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r1578 - trunk/batman-adv-kernelland
by postmaster＠open-mesh.net 27 Feb '10

27 Feb '10

Author: marek Date: 2010-02-27 06:56:18 +0100 (Sat, 27 Feb 2010) New Revision: 1578 Modified: trunk/batman-adv-kernelland/soft-interface.c Log: batman-adv: only modify hna-table on active module If we haven't set the module to MODULE_ACTIVE state before (in general, no interface has yet been added to batman-adv) then the hna table is not initialised yet. If the kernel changes the mac address of the bat0 interface at this moment then an hna_local_add() called by interface_set_mac_addr() then resulted in a null pointer derefernce. With this patch we are now explicitly checking before if the state is MODULE_ACTIVE right now so that we can assume having an initialised hna table. Signed-off-by: Linus L?\195?\188ssing <linus.luessing(a)web.de> Modified: trunk/batman-adv-kernelland/soft-interface.c =================================================================== --- trunk/batman-adv-kernelland/soft-interface.c 2010-02-26 06:02:34 UTC (rev 1577) +++ trunk/batman-adv-kernelland/soft-interface.c 2010-02-27 05:56:18 UTC (rev 1578) @@ -154,9 +154,13 @@ if (!is_valid_ether_addr(addr->sa_data)) return -EADDRNOTAVAIL; - hna_local_remove(dev->dev_addr, "mac address changed"); + /* only modify hna-table if it has been initialised before */ + if (atomic_read(&module_state) == MODULE_ACTIVE) { + hna_local_remove(dev->dev_addr, "mac address changed"); + hna_local_add(addr->sa_data); + } + memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN); - hna_local_add(dev->dev_addr); return 0; }

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r1577 - branches/batctl-0.2.x
by postmaster＠open-mesh.net 26 Feb '10

26 Feb '10

Author: marek Date: 2010-02-26 07:02:34 +0100 (Fri, 26 Feb 2010) New Revision: 1577 Modified: branches/batctl-0.2.x/packet.h Log: batctl-0.2.x: fix incompatible batctl-0.2.x/batman-adv maint COMPAT_VERSION Modified: branches/batctl-0.2.x/packet.h =================================================================== --- branches/batctl-0.2.x/packet.h 2010-02-24 10:51:16 UTC (rev 1576) +++ branches/batctl-0.2.x/packet.h 2010-02-26 06:02:34 UTC (rev 1577) @@ -28,7 +28,7 @@ #define BAT_VIS 0x05 /* this file is included by batctl which needs these defines */ -#define COMPAT_VERSION 9 +#define COMPAT_VERSION 8 #define DIRECTLINK 0x40 #define VIS_SERVER 0x20 @@ -53,8 +53,6 @@ uint8_t prev_sender[6]; uint8_t ttl; uint8_t num_hna; - uint8_t gw_flags; /* flags related to gateway class */ - uint8_t align; } __attribute__((packed)); #define BAT_PACKET_LEN sizeof(struct batman_packet)

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r1576 - trunk/batman-adv-kernelland
by postmaster＠open-mesh.net 24 Feb '10

24 Feb '10

Author: marek Date: 2010-02-24 11:51:16 +0100 (Wed, 24 Feb 2010) New Revision: 1576 Modified: trunk/batman-adv-kernelland/device.c Log: batman-adv: Convert driver-staging to use spin_lock_init() This fixes some RT-triggered compile errors and typos. Signed-off-by: Sven-Thorsten Dietrich <sdietrich(a)novell.com> Modified: trunk/batman-adv-kernelland/device.c =================================================================== --- trunk/batman-adv-kernelland/device.c 2010-02-16 15:44:17 UTC (rev 1575) +++ trunk/batman-adv-kernelland/device.c 2010-02-24 10:51:16 UTC (rev 1576) @@ -120,7 +120,7 @@ INIT_LIST_HEAD(&device_client->queue_list); device_client->queue_len = 0; device_client->index = i; - device_client->lock = __SPIN_LOCK_UNLOCKED(device_client->lock); + spin_lock_init(&device_client->lock); init_waitqueue_head(&device_client->queue_wait); file->private_data = device_client;

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[git] batman-adv tag, GregKH-20100216, created. v0.2-33-g2f51b1c
by postmaster＠open-mesh.net 16 Feb '10

16 Feb '10

The tag, GregKH-20100216 has been created at 2f51b1c529d9f3d5654e41e6e08b8ba769e786f7 (commit) - Shortlog ------------------------------------------------------------ commit 2f51b1c529d9f3d5654e41e6e08b8ba769e786f7 Author: Simon Wunderlich <siwu(a)hrz.tu-chemnitz.de> Date: Fri Jan 1 20:09:34 2010 +0000 Staging: batman-adv: fix unlock, make code sparse clean If the skb failed to copy in the (batman) icmp receive handlers, the function returned without unlocking the orig_hash_lock first. To prevent this, the fields needed from the orig_node are now copied, and the copies are used for sending (just like in other handlers). Furthermore, find_batman_if() was declared static. The code now appears to be clean in 'sparse' [1]. Thanks to Andrew Lunn for pointing that out. [1] http://sparse.wiki.kernel.org/index.php/Main_Page Signed-off-by: Simon Wunderlich <siwu(a)hrz.tu-chemnitz.de> ----------------------------------------------------------------------- -- batman-adv

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r1575 - trunk/batctl
by postmaster＠open-mesh.net 16 Feb '10

16 Feb '10

Author: marek Date: 2010-02-16 16:44:17 +0100 (Tue, 16 Feb 2010) New Revision: 1575 Modified: trunk/batctl/ping.c Log: batctl: record route for ICMP messages batctl is extended to recognize the -R option for the ping subcommand. The output should be the same as for the standard iputils ping program. For this, the destination host is printed twice. Signed-off-by: Daniel Seither <post(a)tiwoc.de> Modified: trunk/batctl/ping.c =================================================================== --- trunk/batctl/ping.c 2010-02-16 15:44:12 UTC (rev 1574) +++ trunk/batctl/ping.c 2010-02-16 15:44:17 UTC (rev 1575) @@ -1,4 +1,4 @@ -/* +/* * Copyright (C) 2007-2009 B.A.T.M.A.N. contributors: * * Andreas Langer <a.langer(a)q-dsl.de>, Marek Lindner <lindner_marek(a)yahoo.de> @@ -48,6 +48,7 @@ printf(" \t -h print this help\n"); printf(" \t -i interval in seconds\n"); printf(" \t -t timeout in seconds\n"); + printf(" \t -R record route\n"); } void sig_handler(int sig) @@ -64,20 +65,22 @@ int ping(int argc, char **argv) { - struct icmp_packet icmp_packet_out, icmp_packet_in; + struct icmp_packet_rr icmp_packet_out, icmp_packet_in; struct timeval tv; - struct ether_addr *dst_mac = NULL; - struct bat_host *bat_host; + struct ether_addr *dst_mac = NULL, *rr_mac = NULL; + struct bat_host *bat_host, *rr_host; ssize_t read_len; fd_set read_socket; int ret = EXIT_FAILURE, ping_fd = 0, res, optchar, found_args = 1; - int loop_count = -1, loop_interval = 1, timeout = 1; + int loop_count = -1, loop_interval = 1, timeout = 1, rr = 0, i; unsigned int seq_counter = 0, packets_out = 0, packets_in = 0, packets_loss; - char *dst_string, *mac_string; + char *dst_string, *mac_string, *rr_string; double time_delta; float min = 0.0, max = 0.0, avg = 0.0; + uint8_t last_rr_cur = 0, last_rr[BAT_RR_LEN][ETH_ALEN]; + size_t packet_len; - while ((optchar = getopt(argc, argv, "hc:i:t:")) != -1) { + while ((optchar = getopt(argc, argv, "hc:i:t:R")) != -1) { switch (optchar) { case 'c': loop_count = strtol(optarg, NULL , 10); @@ -100,6 +103,10 @@ timeout = 1; found_args += ((*((char*)(optarg - 1)) == optchar ) ? 1 : 2); break; + case 'R': + rr = 1; + found_args++; + break; default: ping_usage(); return EXIT_FAILURE; @@ -141,6 +148,8 @@ goto out; } + packet_len = sizeof(struct icmp_packet); + memcpy(&icmp_packet_out.dst, dst_mac, ETH_ALEN); icmp_packet_out.packet_type = BAT_ICMP; icmp_packet_out.version = COMPAT_VERSION; @@ -148,8 +157,15 @@ icmp_packet_out.ttl = 50; icmp_packet_out.seqno = 0; + if (rr) { + packet_len = sizeof(struct icmp_packet_rr); + icmp_packet_out.rr_cur = 1; + memset(&icmp_packet_out.rr, 0, BAT_RR_LEN * ETH_ALEN); + memset(last_rr, 0, BAT_RR_LEN * ETH_ALEN); + } + printf("PING %s (%s) %zu(%zu) bytes of data\n", dst_string, mac_string, - sizeof(icmp_packet_out), sizeof(icmp_packet_out) + 28); + packet_len, packet_len + 28); while (!is_aborted) { if (loop_count == 0) @@ -160,7 +176,7 @@ icmp_packet_out.seqno = htons(++seq_counter); - if (write(ping_fd, (char *)&icmp_packet_out, sizeof(icmp_packet_out)) < 0) { + if (write(ping_fd, (char *)&icmp_packet_out, packet_len) < 0) { printf("Error - can't write to batman adv kernel file '%s': %s\n", BAT_DEVICE, strerror(errno)); goto sleep; } @@ -188,26 +204,57 @@ if (res < 0) goto sleep; - read_len = read(ping_fd, (char *)&icmp_packet_in, sizeof(icmp_packet_in)); + read_len = read(ping_fd, (char *)&icmp_packet_in, packet_len); if (read_len < 0) { printf("Error - can't read from batman adv kernel file '%s': %s\n", BAT_DEVICE, strerror(errno)); goto sleep; } - if ((size_t)read_len < sizeof(icmp_packet_in)) { + if ((size_t)read_len < packet_len) { printf("Warning - dropping received packet as it is smaller than expected (%zu): %zd\n", - sizeof(icmp_packet_in), read_len); + packet_len, read_len); goto sleep; } switch (icmp_packet_in.msg_type) { case ECHO_REPLY: time_delta = end_timer(); - printf("%zd bytes from %s icmp_seq=%hu ttl=%d time=%.2f ms\n", + printf("%zd bytes from %s icmp_seq=%hu ttl=%d time=%.2f ms", read_len, dst_string, ntohs(icmp_packet_in.seqno), icmp_packet_in.ttl, time_delta); + if (read_len == sizeof(struct icmp_packet_rr)) { + if (last_rr_cur == icmp_packet_in.rr_cur + && !memcmp(last_rr, icmp_packet_in.rr, BAT_RR_LEN * ETH_ALEN)) { + + printf("\t(same route)"); + + } else { + printf("\nRR: "); + + for (i = 0; i < BAT_RR_LEN + && i < icmp_packet_in.rr_cur; i++) { + + rr_mac = (struct ether_addr *)&icmp_packet_in.rr[i]; + rr_host = bat_hosts_find_by_mac((char *)rr_mac); + if (rr_host) + rr_string = rr_host->name; + else + rr_string = ether_ntoa_long(rr_mac); + printf("\t%s\n", rr_string); + + if (memcmp(rr_mac, dst_mac, ETH_ALEN) == 0) + printf("\t%s\n", rr_string); + } + + last_rr_cur = icmp_packet_in.rr_cur; + memcpy(last_rr, icmp_packet_in.rr, BAT_RR_LEN * ETH_ALEN); + } + } + + printf("\n"); + if ((time_delta < min) || (min == 0.0)) min = time_delta; if (time_delta > max)

1 0

r1574 - trunk/batman-adv-kernelland
by postmaster＠open-mesh.net 16 Feb '10

16 Feb '10

Author: marek Date: 2010-02-16 16:44:12 +0100 (Tue, 16 Feb 2010) New Revision: 1574 Modified: trunk/batman-adv-kernelland/device.c trunk/batman-adv-kernelland/device.h trunk/batman-adv-kernelland/packet.h trunk/batman-adv-kernelland/routing.c trunk/batman-adv-kernelland/types.h Log: batman-adv: record route for ICMP messages The standard layer 3 ping utility can use the record route (RR) option of IP to collect route data for sent ping messages (ping -R). This patch introduces comparable functionality for batman-adv ICMP messages. The patch adds a second batman ICMP packet format (icmp_packet_rr) such that up to 17 MAC addresses can be recorded (sufficient for up to 8 hops per direction). When no RR is wanted, the old icmp_packet without the RR overhead can be sent. Signed-off-by: Daniel Seither <post(a)tiwoc.de> Signed-off-by: Marek Lindner <lindner_marek(a)yahoo.de> Modified: trunk/batman-adv-kernelland/device.c =================================================================== --- trunk/batman-adv-kernelland/device.c 2010-02-14 17:18:29 UTC (rev 1573) +++ trunk/batman-adv-kernelland/device.c 2010-02-16 15:44:12 UTC (rev 1574) @@ -163,6 +163,7 @@ struct device_client *device_client = (struct device_client *)file->private_data; struct device_packet *device_packet; + size_t packet_len; int error; unsigned long flags; @@ -191,14 +192,15 @@ spin_unlock_irqrestore(&device_client->lock, flags); error = __copy_to_user(buf, &device_packet->icmp_packet, - sizeof(struct icmp_packet)); + device_packet->icmp_len); + packet_len = device_packet->icmp_len; kfree(device_packet); if (error) return error; - return sizeof(struct icmp_packet); + return packet_len; } ssize_t bat_device_write(struct file *file, const char __user *buff, @@ -206,9 +208,10 @@ { struct device_client *device_client = (struct device_client *)file->private_data; - struct icmp_packet icmp_packet; + struct icmp_packet_rr icmp_packet; struct orig_node *orig_node; struct batman_if *batman_if; + size_t packet_len = sizeof(struct icmp_packet); uint8_t dstaddr[ETH_ALEN]; unsigned long flags; @@ -217,10 +220,13 @@ return -EINVAL; } - if (!access_ok(VERIFY_READ, buff, sizeof(struct icmp_packet))) + if (len >= sizeof(struct icmp_packet_rr)) + packet_len = sizeof(struct icmp_packet_rr); + + if (!access_ok(VERIFY_READ, buff, packet_len)) return -EFAULT; - if (__copy_from_user(&icmp_packet, buff, sizeof(icmp_packet))) + if (__copy_from_user(&icmp_packet, buff, packet_len)) return -EFAULT; if (icmp_packet.packet_type != BAT_ICMP) { @@ -238,7 +244,7 @@ if (icmp_packet.version != COMPAT_VERSION) { icmp_packet.msg_type = PARAMETER_PROBLEM; icmp_packet.ttl = COMPAT_VERSION; - bat_device_add_packet(device_client, &icmp_packet); + bat_device_add_packet(device_client, &icmp_packet, packet_len); goto out; } @@ -265,13 +271,13 @@ if (batman_if->if_active != IF_ACTIVE) goto dst_unreach; - memcpy(icmp_packet.orig, - batman_if->net_dev->dev_addr, - ETH_ALEN); + memcpy(icmp_packet.orig, batman_if->net_dev->dev_addr, ETH_ALEN); + if (packet_len == sizeof(struct icmp_packet_rr)) + memcpy(icmp_packet.rr, batman_if->net_dev->dev_addr, ETH_ALEN); + send_raw_packet((unsigned char *)&icmp_packet, - sizeof(struct icmp_packet), - batman_if, dstaddr); + packet_len, batman_if, dstaddr); goto out; @@ -279,7 +285,7 @@ spin_unlock_irqrestore(&orig_hash_lock, flags); dst_unreach: icmp_packet.msg_type = DESTINATION_UNREACHABLE; - bat_device_add_packet(device_client, &icmp_packet); + bat_device_add_packet(device_client, &icmp_packet, packet_len); out: return len; } @@ -298,7 +304,8 @@ } void bat_device_add_packet(struct device_client *device_client, - struct icmp_packet *icmp_packet) + struct icmp_packet_rr *icmp_packet, + size_t icmp_len) { struct device_packet *device_packet; unsigned long flags; @@ -309,8 +316,8 @@ return; INIT_LIST_HEAD(&device_packet->list); - memcpy(&device_packet->icmp_packet, icmp_packet, - sizeof(struct icmp_packet)); + memcpy(&device_packet->icmp_packet, icmp_packet, icmp_len); + device_packet->icmp_len = icmp_len; spin_lock_irqsave(&device_client->lock, flags); @@ -339,10 +346,11 @@ wake_up(&device_client->queue_wait); } -void bat_device_receive_packet(struct icmp_packet *icmp_packet) +void bat_device_receive_packet(struct icmp_packet_rr *icmp_packet, + size_t icmp_len) { struct device_client *hash = device_client_hash[icmp_packet->uid]; if (hash) - bat_device_add_packet(hash, icmp_packet); + bat_device_add_packet(hash, icmp_packet, icmp_len); } Modified: trunk/batman-adv-kernelland/device.h =================================================================== --- trunk/batman-adv-kernelland/device.h 2010-02-14 17:18:29 UTC (rev 1573) +++ trunk/batman-adv-kernelland/device.h 2010-02-16 15:44:12 UTC (rev 1574) @@ -32,5 +32,7 @@ size_t len, loff_t *off); unsigned int bat_device_poll(struct file *file, poll_table *wait); void bat_device_add_packet(struct device_client *device_client, - struct icmp_packet *icmp_packet); -void bat_device_receive_packet(struct icmp_packet *icmp_packet); + struct icmp_packet_rr *icmp_packet, + size_t icmp_len); +void bat_device_receive_packet(struct icmp_packet_rr *icmp_packet, + size_t icmp_len); Modified: trunk/batman-adv-kernelland/packet.h =================================================================== --- trunk/batman-adv-kernelland/packet.h 2010-02-14 17:18:29 UTC (rev 1573) +++ trunk/batman-adv-kernelland/packet.h 2010-02-16 15:44:12 UTC (rev 1574) @@ -71,6 +71,23 @@ uint8_t uid; } __attribute__((packed)); +#define BAT_RR_LEN 16 + +/* icmp_packet_rr must start with all fields from imcp_packet + as this is assumed by code that handles ICMP packets */ +struct icmp_packet_rr { + uint8_t packet_type; + uint8_t version; /* batman version field */ + uint8_t msg_type; /* see ICMP message types above */ + uint8_t ttl; + uint8_t dst[6]; + uint8_t orig[6]; + uint16_t seqno; + uint8_t uid; + uint8_t rr_cur; + uint8_t rr[BAT_RR_LEN][ETH_ALEN]; +} __attribute__((packed)); + struct unicast_packet { uint8_t packet_type; uint8_t version; /* batman version field */ Modified: trunk/batman-adv-kernelland/routing.c =================================================================== --- trunk/batman-adv-kernelland/routing.c 2010-02-14 17:18:29 UTC (rev 1573) +++ trunk/batman-adv-kernelland/routing.c 2010-02-16 15:44:12 UTC (rev 1574) @@ -706,10 +706,10 @@ return NET_RX_SUCCESS; } -static int recv_my_icmp_packet(struct sk_buff *skb) +static int recv_my_icmp_packet(struct sk_buff *skb, size_t icmp_len) { struct orig_node *orig_node; - struct icmp_packet *icmp_packet; + struct icmp_packet_rr *icmp_packet; struct ethhdr *ethhdr; struct sk_buff *skb_old; struct batman_if *batman_if; @@ -717,12 +717,12 @@ unsigned long flags; uint8_t dstaddr[ETH_ALEN]; - icmp_packet = (struct icmp_packet *) skb->data; - ethhdr = (struct ethhdr *) skb_mac_header(skb); + icmp_packet = (struct icmp_packet_rr *)skb->data; + ethhdr = (struct ethhdr *)skb_mac_header(skb); /* add data to device queue */ if (icmp_packet->msg_type != ECHO_REQUEST) { - bat_device_receive_packet(icmp_packet); + bat_device_receive_packet(icmp_packet, icmp_len); return NET_RX_DROP; } @@ -745,12 +745,12 @@ /* create a copy of the skb, if needed, to modify it. */ skb_old = NULL; - if (!skb_clone_writable(skb, sizeof(struct icmp_packet))) { + if (!skb_clone_writable(skb, icmp_len)) { skb_old = skb; skb = skb_copy(skb, GFP_ATOMIC); if (!skb) return NET_RX_DROP; - icmp_packet = (struct icmp_packet *) skb->data; + icmp_packet = (struct icmp_packet_rr *)skb->data; kfree_skb(skb_old); } @@ -768,7 +768,7 @@ return ret; } -static int recv_icmp_ttl_exceeded(struct sk_buff *skb) +static int recv_icmp_ttl_exceeded(struct sk_buff *skb, size_t icmp_len) { struct orig_node *orig_node; struct icmp_packet *icmp_packet; @@ -806,7 +806,7 @@ spin_unlock_irqrestore(&orig_hash_lock, flags); /* create a copy of the skb, if needed, to modify it. */ - if (!skb_clone_writable(skb, sizeof(struct icmp_packet))) { + if (!skb_clone_writable(skb, icmp_len)) { skb_old = skb; skb = skb_copy(skb, GFP_ATOMIC); if (!skb) @@ -832,7 +832,7 @@ int recv_icmp_packet(struct sk_buff *skb) { - struct icmp_packet *icmp_packet; + struct icmp_packet_rr *icmp_packet; struct ethhdr *ethhdr; struct orig_node *orig_node; struct sk_buff *skb_old; @@ -842,6 +842,12 @@ unsigned long flags; uint8_t dstaddr[ETH_ALEN]; + /** + * we truncate all incoming icmp packets if they don't match our size + */ + if (skb_headlen(skb) >= sizeof(struct icmp_packet_rr)) + hdr_size = sizeof(struct icmp_packet_rr); + /* drop packet if it has not necessary minimum size */ if (skb_headlen(skb) < hdr_size) return NET_RX_DROP; @@ -860,15 +866,23 @@ if (!is_my_mac(ethhdr->h_dest)) return NET_RX_DROP; - icmp_packet = (struct icmp_packet *) skb->data; + icmp_packet = (struct icmp_packet_rr *)skb->data; + /* add record route information if not full */ + if ((hdr_size == sizeof(struct icmp_packet_rr)) && + (icmp_packet->rr_cur < BAT_RR_LEN)) { + memcpy(&(icmp_packet->rr[icmp_packet->rr_cur]), + ethhdr->h_dest, ETH_ALEN); + icmp_packet->rr_cur++; + } + /* packet for me */ if (is_my_mac(icmp_packet->dst)) - return recv_my_icmp_packet(skb); + return recv_my_icmp_packet(skb, hdr_size); /* TTL exceeded */ if (icmp_packet->ttl < 2) - return recv_icmp_ttl_exceeded(skb); + return recv_icmp_ttl_exceeded(skb, hdr_size); ret = NET_RX_DROP; @@ -888,12 +902,12 @@ spin_unlock_irqrestore(&orig_hash_lock, flags); /* create a copy of the skb, if needed, to modify it. */ - if (!skb_clone_writable(skb, sizeof(struct icmp_packet))) { + if (!skb_clone_writable(skb, hdr_size)) { skb_old = skb; skb = skb_copy(skb, GFP_ATOMIC); if (!skb) return NET_RX_DROP; - icmp_packet = (struct icmp_packet *) skb->data; + icmp_packet = (struct icmp_packet_rr *)skb->data; kfree_skb(skb_old); } Modified: trunk/batman-adv-kernelland/types.h =================================================================== --- trunk/batman-adv-kernelland/types.h 2010-02-14 17:18:29 UTC (rev 1573) +++ trunk/batman-adv-kernelland/types.h 2010-02-16 15:44:12 UTC (rev 1574) @@ -106,7 +106,8 @@ struct device_packet { struct list_head list; - struct icmp_packet icmp_packet; + size_t icmp_len; + struct icmp_packet_rr icmp_packet; }; struct hna_local_entry {

1 0

r1573 - trunk/batman-adv-kernelland
by postmaster＠open-mesh.net 14 Feb '10

14 Feb '10

Author: simon Date: 2010-02-14 18:18:29 +0100 (Sun, 14 Feb 2010) New Revision: 1573 Modified: trunk/batman-adv-kernelland/hard-interface.c trunk/batman-adv-kernelland/proc.c Log: batman-adv: fix module initialization Mareks patch to make sure that batman-adv does not process packets before its initialization is complete. Some sanity checks added to the receiver function. Signed-off-by: Marek Lindner <lindner_marek(a)yahoo.de> Signed-off-by: Simon Wunderlich <siwu(a)hrz.tu-chemnitz.de> Modified: trunk/batman-adv-kernelland/hard-interface.c =================================================================== --- trunk/batman-adv-kernelland/hard-interface.c 2010-02-14 16:30:15 UTC (rev 1572) +++ trunk/batman-adv-kernelland/hard-interface.c 2010-02-14 17:18:29 UTC (rev 1573) @@ -433,6 +433,9 @@ if (!skb) goto err_out; + if (atomic_read(&module_state) != MODULE_ACTIVE) + goto err_free; + /* packet should hold at least type and version */ if (unlikely(skb_headlen(skb) < 2)) goto err_free; @@ -446,6 +449,10 @@ if (!batman_if) goto err_free; + /* discard frames on not active interfaces */ + if (batman_if->if_active != IF_ACTIVE) + goto err_free; + stats = (struct net_device_stats *)dev_get_stats(skb->dev); if (stats) { stats->rx_packets++; Modified: trunk/batman-adv-kernelland/proc.c =================================================================== --- trunk/batman-adv-kernelland/proc.c 2010-02-14 16:30:15 UTC (rev 1572) +++ trunk/batman-adv-kernelland/proc.c 2010-02-14 17:18:29 UTC (rev 1573) @@ -67,7 +67,7 @@ size_t count, loff_t *data) { char *if_string, *colon_ptr = NULL, *cr_ptr = NULL; - int not_copied = 0, if_num = 0; + int not_copied = 0, if_num = 0, add_success; struct batman_if *batman_if = NULL; if_string = kmalloc(count, GFP_KERNEL); @@ -113,22 +113,17 @@ } rcu_read_unlock(); - hardif_add_interface(if_string, if_num); + add_success = hardif_add_interface(if_string, if_num); + if (add_success < 0) + goto end; + num_ifs = if_num + 1; + if ((atomic_read(&module_state) == MODULE_INACTIVE) && (hardif_get_active_if_num() > 0)) activate_module(); - rcu_read_lock(); - if (list_empty(&if_list)) { - rcu_read_unlock(); - goto end; - } - rcu_read_unlock(); - - num_ifs = if_num + 1; return count; - end: kfree(if_string); return count;

1 0

r1572 - trunk/batman-adv-kernelland
by postmaster＠open-mesh.net 14 Feb '10

14 Feb '10

Author: marek Date: 2010-02-14 17:30:15 +0100 (Sun, 14 Feb 2010) New Revision: 1572 Modified: trunk/batman-adv-kernelland/hard-interface.c Log: batman-adv: avoid crash on memory allocation error skb_share_check() returns NULL if it can't allocate more memory but it still frees the skbuff. Signed-off-by: Marek Lindner <lindner_marek(a)yahoo.de> Modified: trunk/batman-adv-kernelland/hard-interface.c =================================================================== --- trunk/batman-adv-kernelland/hard-interface.c 2010-02-14 15:05:18 UTC (rev 1571) +++ trunk/batman-adv-kernelland/hard-interface.c 2010-02-14 16:30:15 UTC (rev 1572) @@ -427,10 +427,11 @@ struct net_device_stats *stats; int ret; - skb = skb_share_check(skb, GFP_ATOMIC); + skb = skb_share_check(skb, GFP_ATOMIC); - if (skb == NULL) - goto err_free; + /* skb was released by skb_share_check() */ + if (!skb) + goto err_out; /* packet should hold at least type and version */ if (unlikely(skb_headlen(skb) < 2)) @@ -445,7 +446,7 @@ if (!batman_if) goto err_free; - stats = (struct net_device_stats *) dev_get_stats(skb->dev); + stats = (struct net_device_stats *)dev_get_stats(skb->dev); if (stats) { stats->rx_packets++; stats->rx_bytes += skb->len; @@ -491,6 +492,7 @@ default: ret = NET_RX_DROP; } + if (ret == NET_RX_DROP) kfree_skb(skb); @@ -501,9 +503,9 @@ return NET_RX_SUCCESS; err_free: - kfree_skb(skb); - return NET_RX_DROP; - + kfree_skb(skb); +err_out: + return NET_RX_DROP; }

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r1571 - trunk/batman-adv-kernelland
by postmaster＠open-mesh.net 14 Feb '10

14 Feb '10

Author: simon Date: 2010-02-14 16:05:18 +0100 (Sun, 14 Feb 2010) New Revision: 1571 Modified: trunk/batman-adv-kernelland/routing.c Log: batman-adv: bonding: don't ask hash when already found primary router The probability is very high that we are already dealing with the primary router when searching for a bonding candidate, so check if we are already found it before searching with hash_find(). Signed-off-by: Simon Wunderlich <siwu(a)hrz.tu-chemnitz.de> Modified: trunk/batman-adv-kernelland/routing.c =================================================================== --- trunk/batman-adv-kernelland/routing.c 2010-02-13 14:55:59 UTC (rev 1570) +++ trunk/batman-adv-kernelland/routing.c 2010-02-14 15:05:18 UTC (rev 1571) @@ -937,11 +937,17 @@ return orig_node->router; /* find the orig_node which has the primary interface. might - * even be the same as our orig_node in many cases */ + * even be the same as our router_orig in many cases */ - primary_orig_node = hash_find(orig_hash, router_orig->primary_addr); - if (!primary_orig_node) - return orig_node->router; + if (memcmp(router_orig->primary_addr, + router_orig->orig, ETH_ALEN) == 0) { + primary_orig_node = router_orig; + } else { + primary_orig_node = hash_find(orig_hash, + router_orig->primary_addr); + if (!primary_orig_node) + return orig_node->router; + } /* with less than 2 candidates, we can't do any * bonding and prefer the original router. */

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r1570 - trunk/batman-adv-kernelland
by postmaster＠open-mesh.net 13 Feb '10

13 Feb '10

Author: marek Date: 2010-02-13 15:55:59 +0100 (Sat, 13 Feb 2010) New Revision: 1570 Modified: trunk/batman-adv-kernelland/bat_printk.c Log: batman-adv: Some missed debug output, removing it. Signed-off-by: Linus L?\195?\188ssing <linus.luessing(a)web.de> Signed-off-by: Andrew Lunn <andrew(a)lunn.ch> Modified: trunk/batman-adv-kernelland/bat_printk.c =================================================================== --- trunk/batman-adv-kernelland/bat_printk.c 2010-02-13 14:55:55 UTC (rev 1569) +++ trunk/batman-adv-kernelland/bat_printk.c 2010-02-13 14:55:59 UTC (rev 1570) @@ -857,5 +857,5 @@ r = bat_vsnprintf(buf, sizeof(buf), fmt, args); va_end(args); - return printk("foo:%s", buf); + return printk("%s", buf); }

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