B.A.T.M.A.N January 2017

b.a.t.m.a.n@lists.open-mesh.org

17 participants
34 discussions

[B.A.T.M.A.N.] [PATCH v3 0/4] Broadcast Avoidances, Neighborhood Hash

by Linus Lüssing

Hi, Here's the second broadcast avoidance patchset. Hopefully, those two patchsets together should be an automatic approach and replacement for the (non-upstream) no-rebroadcast flag patch and the cases it is currently used for. Documentation: * https://www.open-mesh.org/projects/batman-adv/wiki/Broadcast-Avoidances Branch: * https://git.open-mesh.org/batman-adv.git/shortlog/refs/heads/linus/neighhash Regards, Linus ----- Known limitations: Avoidance potential is not fully detected in a setup with a mix of 100MBit/s and 1000MBit/s capable, wired nodes. If rebroadcast avoidance is strictly needed in such mixed, wired setups, too, then people could consider setting the throughput_override option of BATMAN V.

6 years, 1 month

[B.A.T.M.A.N.] [PATCH 1/2] batman-adv: Fix double call of dev_queue_xmit

by Sven Eckelmann

The net_xmit_eval has side effects because it is not making sure that e isn't evaluated twice. #define net_xmit_eval(e) ((e) == NET_XMIT_CN ? 0 : (e)) The code proposed by David Miller return net_xmit_eval(dev_queue_xmit(skb)); will therefore get transformed into return ((dev_queue_xmit(skb)) == NET_XMIT_CN ? 0 : (dev_queue_xmit(skb))) dev_queue_xmit will therefore be tried again (with an already consumed skb) whenever the return code is not NET_XMIT_CN. Fixes: 17efab9867c5 ("batman-adv: Simplify handling of NET_XMIT_CN") Signed-off-by: Sven Eckelmann <sven(a)narfation.org> --- net/batman-adv/send.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/net/batman-adv/send.c b/net/batman-adv/send.c index d9b28890..1489ec27 100644 --- a/net/batman-adv/send.c +++ b/net/batman-adv/send.c @@ -77,6 +77,7 @@ int batadv_send_skb_packet(struct sk_buff *skb, { struct batadv_priv *bat_priv; struct ethhdr *ethhdr; + int ret; bat_priv = netdev_priv(hard_iface->soft_iface); @@ -115,7 +116,8 @@ int batadv_send_skb_packet(struct sk_buff *skb, * congestion and traffic shaping, it drops and returns NET_XMIT_DROP * (which is > 0). This will not be treated as an error. */ - return net_xmit_eval(dev_queue_xmit(skb)); + ret = dev_queue_xmit(skb); + return net_xmit_eval(ret); send_skb_err: kfree_skb(skb); return NET_XMIT_DROP; -- 2.11.0

6 years, 2 months

[B.A.T.M.A.N.] [PATCH v2 0/4] Broadcast Avoidances, Neighborhood Hash

by Linus Lüssing

Hi, Here's the second broadcast avoidance patchset (rebased on the former one). Hopefully, those two patchsets together should be an automatic approach and replacement for the (non-upstream) no-rebroadcast flag patch and the cases it is currently used for. Documentation: * https://www.open-mesh.org/projects/batman-adv/wiki/Broadcast-Avoidances Branch: * https://git.open-mesh.org/batman-adv.git/shortlog/refs/heads/linus/neighhash Regards, Linus

6 years, 2 months

[B.A.T.M.A.N.] [PATCH v1] alfred: Formatting patch for sync-period casts

by Jonathan Haws

--- main.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/main.c b/main.c index 1cabe15..446eecf 100644 --- a/main.c +++ b/main.c @@ -276,8 +276,8 @@ static struct globals *alfred_init(int argc, char *argv[]) return NULL; case 'p': sync_period = strtod(optarg, NULL); - globals->sync_period.tv_sec = (int) sync_period; - globals->sync_period.tv_nsec = (double) (sync_period - (int) sync_period) * 1e9; + globals->sync_period.tv_sec = (int)sync_period; + globals->sync_period.tv_nsec = (double)(sync_period - (int)sync_period) * 1e9; printf(" ** Setting sync interval to: %.9f seconds (%ld.%09ld)\n", sync_period, globals->sync_period.tv_sec, globals->sync_period.tv_nsec); break; case '4': -- 2.7.4

6 years, 2 months

[B.A.T.M.A.N.] [PATCH 0/7] pull request for net-next: batman-adv 2017-01-26

by Simon Wunderlich

Hi David, this is the updated version of yesterdays feature/cleanup pull request for batman-adv which should go into net-next. We've followed your suggestion regarding the NET_XMIT_CN handling and modified Gaos patch accordingly. The remaining patches are untouched. Please pull or let me know of any problem! Thank you, Simon The following changes since commit 7ce7d89f48834cefece7804d38fc5d85382edf77: Linux 4.10-rc1 (2016-12-25 16:13:08 -0800) are available in the git repository at: git://git.open-mesh.org/linux-merge.git tags/batadv-next-for-davem-20170126 for you to fetch changes up to c33705188c493b7de3b8dc2956d67de91b444727: batman-adv: Treat NET_XMIT_CN as transmit successfully (2017-01-26 08:41:18 +0100) ---------------------------------------------------------------- This feature/cleanup patchset includes the following patches: - bump version strings, by Simon Wunderlich - ignore self-generated loop detect MAC addresses in translation table, by Simon Wunderlich - install uapi batman_adv.h header, by Sven Eckelmann - bump copyright years, by Sven Eckelmann - Remove an unused variable in translation table code, by Sven Eckelmann - Handle NET_XMIT_CN like NET_XMIT_SUCCESS (revised according to Davids suggestion), and a follow up code clean up, by Gao Feng (2 patches) ---------------------------------------------------------------- Gao Feng (2): batman-adv: Remove one condition check in batadv_route_unicast_packet batman-adv: Treat NET_XMIT_CN as transmit successfully Simon Wunderlich (2): batman-adv: Start new development cycle batman-adv: don't add loop detect macs to TT Sven Eckelmann (3): uapi: install batman_adv.h header batman-adv: update copyright years for 2017 batman-adv: Remove unused variable in batadv_tt_local_set_flags include/uapi/linux/Kbuild | 1 + include/uapi/linux/batman_adv.h | 2 +- net/batman-adv/Makefile | 2 +- net/batman-adv/bat_algo.c | 2 +- net/batman-adv/bat_algo.h | 2 +- net/batman-adv/bat_iv_ogm.c | 2 +- net/batman-adv/bat_iv_ogm.h | 2 +- net/batman-adv/bat_v.c | 2 +- net/batman-adv/bat_v.h | 2 +- net/batman-adv/bat_v_elp.c | 2 +- net/batman-adv/bat_v_elp.h | 2 +- net/batman-adv/bat_v_ogm.c | 2 +- net/batman-adv/bat_v_ogm.h | 2 +- net/batman-adv/bitarray.c | 2 +- net/batman-adv/bitarray.h | 2 +- net/batman-adv/bridge_loop_avoidance.c | 2 +- net/batman-adv/bridge_loop_avoidance.h | 20 +++++++++++++++++++- net/batman-adv/debugfs.c | 2 +- net/batman-adv/debugfs.h | 2 +- net/batman-adv/distributed-arp-table.c | 2 +- net/batman-adv/distributed-arp-table.h | 2 +- net/batman-adv/fragmentation.c | 2 +- net/batman-adv/fragmentation.h | 2 +- net/batman-adv/gateway_client.c | 2 +- net/batman-adv/gateway_client.h | 2 +- net/batman-adv/gateway_common.c | 2 +- net/batman-adv/gateway_common.h | 2 +- net/batman-adv/hard-interface.c | 2 +- net/batman-adv/hard-interface.h | 2 +- net/batman-adv/hash.c | 2 +- net/batman-adv/hash.h | 2 +- net/batman-adv/icmp_socket.c | 2 +- net/batman-adv/icmp_socket.h | 2 +- net/batman-adv/log.c | 2 +- net/batman-adv/log.h | 2 +- net/batman-adv/main.c | 2 +- net/batman-adv/main.h | 4 ++-- net/batman-adv/multicast.c | 2 +- net/batman-adv/multicast.h | 2 +- net/batman-adv/netlink.c | 2 +- net/batman-adv/netlink.h | 2 +- net/batman-adv/network-coding.c | 2 +- net/batman-adv/network-coding.h | 2 +- net/batman-adv/originator.c | 2 +- net/batman-adv/originator.h | 2 +- net/batman-adv/packet.h | 2 +- net/batman-adv/routing.c | 11 +++++------ net/batman-adv/routing.h | 2 +- net/batman-adv/send.c | 4 ++-- net/batman-adv/send.h | 2 +- net/batman-adv/soft-interface.c | 5 +++-- net/batman-adv/soft-interface.h | 2 +- net/batman-adv/sysfs.c | 2 +- net/batman-adv/sysfs.h | 2 +- net/batman-adv/tp_meter.c | 2 +- net/batman-adv/tp_meter.h | 2 +- net/batman-adv/translation-table.c | 4 +--- net/batman-adv/translation-table.h | 2 +- net/batman-adv/tvlv.c | 2 +- net/batman-adv/tvlv.h | 2 +- net/batman-adv/types.h | 2 +- 61 files changed, 87 insertions(+), 70 deletions(-)

6 years, 2 months

[B.A.T.M.A.N.] [PATCH v5] alfred: IPv4 multicast distribution support.

by Jonathan Haws

Enabled via -4 expert option where multicast group address is specified. This option will disable IPv6 communication and is intended for use in networks which do not support IPv6 addressing. When this option is enabled, all IPv6 communication is disabled. Combining IPv4 and IPv6 alfred nodes is unsupported. Hardware address handling done by submitting queries to the local ARP cache rather than forcing an ARP request. Signed-off-by: Jonathan Haws <jhaws(a)sdl.usu.edu> --- README | 4 +- alfred.h | 23 ++++++--- batadv_query.c | 50 +++++++++++------- batadv_query.h | 6 ++- client.c | 2 +- main.c | 10 +++- man/alfred.8 | 5 ++ netsock.c | 158 +++++++++++++++++++++++++++++++++++++++++++++++++++++---- recv.c | 63 ++++++++++++++++------- send.c | 48 +++++++++++------- server.c | 8 +-- unix_sock.c | 2 +- util.c | 30 +++++++++++ 13 files changed, 328 insertions(+), 81 deletions(-) diff --git a/README b/README index bc1c3bc..28f3dc9 100644 --- a/README +++ b/README @@ -20,7 +20,9 @@ programs to communicate with alfred (done via unix sockets). alfred then takes care of distributing the local information to other alfred servers on other nodes. This is done via IPv6 link-local multicast, and does not require any configuration. A user can request data from alfred, and will receive the -information available from all alfred servers in the network. +information available from all alfred servers in the network. Alternatively, +alfred can be configured to distribute the local information via IPv4 multicast. +This is configured by setting the IPv4 multicast group address in the -4 option. Compilation ----------- diff --git a/alfred.h b/alfred.h index 2e8db1e..6bdaac7 100644 --- a/alfred.h +++ b/alfred.h @@ -48,6 +48,11 @@ enum data_source { SOURCE_SYNCED = 2, }; +typedef union { + struct in_addr ipv4; + struct in6_addr ipv6; +} alfred_addr; + struct dataset { struct alfred_data data; unsigned char *buf; @@ -80,7 +85,7 @@ struct transaction_head { struct server { struct ether_addr hwaddr; - struct in6_addr address; + alfred_addr address; struct timespec last_seen; uint8_t tq; }; @@ -100,11 +105,12 @@ enum clientmode { struct interface { struct ether_addr hwaddr; - struct in6_addr address; + alfred_addr address; uint32_t scope_id; char *interface; int netsock; int netsock_mcast; + int netsock_arp; struct hashtable_t *server_hash; @@ -122,6 +128,7 @@ struct globals { int clientmode_arg; int clientmode_version; int verbose; + int ipv4mode; int unix_sock; const char *unix_path; @@ -142,7 +149,7 @@ struct globals { #define MAX_PAYLOAD ((1 << 16) - 1 - sizeof(struct udphdr)) -extern const struct in6_addr in6addr_localmcast; +extern alfred_addr alfred_mcast; /* server.c */ int alfred_server(struct globals *globals); @@ -169,13 +176,13 @@ static inline bool transaction_finished(struct transaction_head *head) /* send.c */ int push_data(struct globals *globals, struct interface *interface, - struct in6_addr *destination, enum data_source max_source_level, + alfred_addr *destination, enum data_source max_source_level, int type_filter, uint16_t tx_id); int announce_master(struct globals *globals); int push_local_data(struct globals *globals); int sync_data(struct globals *globals); -ssize_t send_alfred_packet(struct interface *interface, - const struct in6_addr *dest, void *buf, int length); +ssize_t send_alfred_packet(struct globals *globals, struct interface *interface, + const alfred_addr *dest, void *buf, int length); /* unix_sock.c */ int unix_sock_read(struct globals *globals); int unix_sock_open_daemon(struct globals *globals); @@ -195,10 +202,12 @@ int netsock_prepare_select(struct globals *globals, fd_set *fds, int maxsock); void netsock_check_error(struct globals *globals, fd_set *errfds); int netsock_receive_packet(struct globals *globals, fd_set *fds); int netsock_own_address(const struct globals *globals, - const struct in6_addr *address); + const alfred_addr *address); /* util.c */ int time_diff(struct timespec *tv1, struct timespec *tv2, struct timespec *tvdiff); void time_random_seed(void); uint16_t get_random_id(void); bool is_valid_ether_addr(uint8_t *addr); +int ipv4_arp_request(struct interface *interface, const alfred_addr *addr, + struct ether_addr *mac); diff --git a/batadv_query.c b/batadv_query.c index ac45b9b..6ec086b 100644 --- a/batadv_query.c +++ b/batadv_query.c @@ -80,22 +80,22 @@ out: return ret; } -int mac_to_ipv6(const struct ether_addr *mac, struct in6_addr *addr) +int mac_to_ipv6(const struct ether_addr *mac, alfred_addr *addr) { memset(addr, 0, sizeof(*addr)); - addr->s6_addr[0] = 0xfe; - addr->s6_addr[1] = 0x80; + addr->ipv6.s6_addr[0] = 0xfe; + addr->ipv6.s6_addr[1] = 0x80; - addr->s6_addr[8] = mac->ether_addr_octet[0] ^ 0x02; - addr->s6_addr[9] = mac->ether_addr_octet[1]; - addr->s6_addr[10] = mac->ether_addr_octet[2]; + addr->ipv6.s6_addr[8] = mac->ether_addr_octet[0] ^ 0x02; + addr->ipv6.s6_addr[9] = mac->ether_addr_octet[1]; + addr->ipv6.s6_addr[10] = mac->ether_addr_octet[2]; - addr->s6_addr[11] = 0xff; - addr->s6_addr[12] = 0xfe; + addr->ipv6.s6_addr[11] = 0xff; + addr->ipv6.s6_addr[12] = 0xfe; - addr->s6_addr[13] = mac->ether_addr_octet[3]; - addr->s6_addr[14] = mac->ether_addr_octet[4]; - addr->s6_addr[15] = mac->ether_addr_octet[5]; + addr->ipv6.s6_addr[13] = mac->ether_addr_octet[3]; + addr->ipv6.s6_addr[14] = mac->ether_addr_octet[4]; + addr->ipv6.s6_addr[15] = mac->ether_addr_octet[5]; return 0; } @@ -118,17 +118,29 @@ int is_ipv6_eui64(const struct in6_addr *addr) return 1; } -int ipv6_to_mac(const struct in6_addr *addr, struct ether_addr *mac) +int ipv6_to_mac(const alfred_addr *addr, struct ether_addr *mac) { - if (!is_ipv6_eui64(addr)) + if (!is_ipv6_eui64(&addr->ipv6)) return -EINVAL; - mac->ether_addr_octet[0] = addr->s6_addr[8] ^ 0x02; - mac->ether_addr_octet[1] = addr->s6_addr[9]; - mac->ether_addr_octet[2] = addr->s6_addr[10]; - mac->ether_addr_octet[3] = addr->s6_addr[13]; - mac->ether_addr_octet[4] = addr->s6_addr[14]; - mac->ether_addr_octet[5] = addr->s6_addr[15]; + mac->ether_addr_octet[0] = addr->ipv6.s6_addr[8] ^ 0x02; + mac->ether_addr_octet[1] = addr->ipv6.s6_addr[9]; + mac->ether_addr_octet[2] = addr->ipv6.s6_addr[10]; + mac->ether_addr_octet[3] = addr->ipv6.s6_addr[13]; + mac->ether_addr_octet[4] = addr->ipv6.s6_addr[14]; + mac->ether_addr_octet[5] = addr->ipv6.s6_addr[15]; + + if (!is_valid_ether_addr(mac->ether_addr_octet)) + return -EINVAL; + + return 0; +} + +int ipv4_to_mac(struct interface *interface, + const alfred_addr *addr, struct ether_addr *mac) +{ + if (ipv4_arp_request(interface, addr, mac) < 0) + return -EINVAL; if (!is_valid_ether_addr(mac->ether_addr_octet)) return -EINVAL; diff --git a/batadv_query.h b/batadv_query.h index 0df8a35..9aa4f0e 100644 --- a/batadv_query.h +++ b/batadv_query.h @@ -28,8 +28,10 @@ struct ether_addr *translate_mac(const char *mesh_iface, const struct ether_addr *mac); uint8_t get_tq(const char *mesh_iface, struct ether_addr *mac); int batadv_interface_check(const char *mesh_iface); -int mac_to_ipv6(const struct ether_addr *mac, struct in6_addr *addr); -int ipv6_to_mac(const struct in6_addr *addr, struct ether_addr *mac); +int mac_to_ipv6(const struct ether_addr *mac, alfred_addr *addr); +int ipv6_to_mac(const alfred_addr *addr, struct ether_addr *mac); +int ipv4_to_mac(struct interface *interface, + const alfred_addr *addr, struct ether_addr *mac); int is_ipv6_eui64(const struct in6_addr *addr); #endif diff --git a/client.c b/client.c index 357fdb9..4102046 100644 --- a/client.c +++ b/client.c @@ -239,7 +239,7 @@ static int check_interface(const char *iface) return -1; } - sock = socket(PF_INET6, SOCK_DGRAM, 0); + sock = socket(PF_INET, SOCK_DGRAM, 0); if (sock < 0) { perror("can't open socket"); return -1; diff --git a/main.c b/main.c index 0d30ea4..1cabe15 100644 --- a/main.c +++ b/main.c @@ -19,6 +19,7 @@ * */ +#include <arpa/inet.h> #include <getopt.h> #include <signal.h> #include <stdio.h> @@ -61,6 +62,7 @@ static void alfred_usage(void) printf(" other masters\n"); printf(" -p, --sync-period [period] set synchronization period, in seconds\n"); printf(" fractional seconds are supported (i.e. 0.2 = 5 Hz)\n"); + printf(" -4 [group-address] specify IPv4 multicast address and operate in IPv4 mode"); printf("\n"); printf(" -u, --unix-path [path] path to unix socket used for client-server\n"); printf(" communication (default: \""ALFRED_SOCK_PATH_DEFAULT"\")\n"); @@ -196,6 +198,7 @@ static struct globals *alfred_init(int argc, char *argv[]) globals->mesh_iface = "bat0"; globals->unix_path = ALFRED_SOCK_PATH_DEFAULT; globals->verbose = 0; + globals->ipv4mode = 0; globals->update_command = NULL; globals->sync_period.tv_sec = ALFRED_INTERVAL; globals->sync_period.tv_nsec = 0; @@ -204,7 +207,7 @@ static struct globals *alfred_init(int argc, char *argv[]) time_random_seed(); - while ((opt = getopt_long(argc, argv, "ms:r:hi:b:vV:M:I:u:dc:p:", long_options, + while ((opt = getopt_long(argc, argv, "ms:r:hi:b:vV:M:I:u:dc:p:4:", long_options, &opt_ind)) != -1) { switch (opt) { case 'r': @@ -277,6 +280,11 @@ static struct globals *alfred_init(int argc, char *argv[]) globals->sync_period.tv_nsec = (double) (sync_period - (int) sync_period) * 1e9; printf(" ** Setting sync interval to: %.9f seconds (%ld.%09ld)\n", sync_period, globals->sync_period.tv_sec, globals->sync_period.tv_nsec); break; + case '4': + globals->ipv4mode = 1; + inet_pton(AF_INET, optarg, &alfred_mcast.ipv4); + printf(" ** IPv4 Multicast Mode: %x\n", alfred_mcast.ipv4.s_addr); + break; case 'h': default: alfred_usage(); diff --git a/man/alfred.8 b/man/alfred.8 index 5936e64..a2c3d4c 100644 --- a/man/alfred.8 +++ b/man/alfred.8 @@ -123,6 +123,11 @@ as arguments. Specify alfred synchronization period, in seconds. If not specified, the default ALFRED_INTERVAL setting of 10 seconds will be used. Fractional seconds are supported. +.TP +\fB\-4 \fIgroup-address\fP \fP +Specify the IPv4 multicast group address and enable IPv4 data-sharing (disabling +IPv6 communication). This option is required on systems that do not support IPv6 +addressing. . .SH EXAMPLES Start an alfred server listening on bridge br0 (assuming that this bridge diff --git a/netsock.c b/netsock.c index 86db8a6..c00ea2e 100644 --- a/netsock.c +++ b/netsock.c @@ -43,10 +43,12 @@ #include "list.h" #include "hash.h" -const struct in6_addr in6addr_localmcast = {{{ 0xff, 0x02, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x01 } } }; +alfred_addr alfred_mcast = { + .ipv6 = {{{ 0xff, 0x02, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x01 } } } +}; static int server_compare(void *d1, void *d2) { @@ -262,7 +264,7 @@ static int netsock_open(struct interface *interface) memset(&sin6_mc, 0, sizeof(sin6_mc)); sin6_mc.sin6_port = htons(ALFRED_PORT); sin6_mc.sin6_family = AF_INET6; - memcpy(&sin6_mc.sin6_addr, &in6addr_localmcast, + memcpy(&sin6_mc.sin6_addr, &alfred_mcast, sizeof(sin6_mc.sin6_addr)); sin6_mc.sin6_scope_id = interface->scope_id; @@ -291,7 +293,7 @@ static int netsock_open(struct interface *interface) goto err; } - memcpy(&mreq.ipv6mr_multiaddr, &in6addr_localmcast, + memcpy(&mreq.ipv6mr_multiaddr, &alfred_mcast, sizeof(mreq.ipv6mr_multiaddr)); mreq.ipv6mr_interface = interface->scope_id; @@ -335,6 +337,134 @@ err: return -1; } +static int netsock_open4(struct interface *interface) +{ + int sock; + int sock_mc; + struct sockaddr_in sin4, sin_mc; + struct ip_mreq mreq; + struct ifreq ifr; + int ret; + + interface->netsock = -1; + interface->netsock_mcast = -1; + + sock = socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP); + if (sock < 0) { + perror("ipv4: can't open socket"); + return -1; + } + + sock_mc = socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP); + if (sock_mc < 0) { + close(sock); + perror("ipv4: can't open mc socket"); + return -1; + } + + memset(&ifr, 0, sizeof(ifr)); + strncpy(ifr.ifr_name, interface->interface, IFNAMSIZ); + ifr.ifr_name[IFNAMSIZ - 1] = '\0'; + if (ioctl(sock_mc, SIOCGIFHWADDR, &ifr) == -1) { + perror("ipv4: can't get MAC address"); + goto err; + } + memcpy(&interface->hwaddr, &ifr.ifr_hwaddr.sa_data, 6); + + memset(&sin4, 0, sizeof(sin4)); + sin4.sin_port = htons(ALFRED_PORT); + sin4.sin_family = AF_INET; + sin4.sin_addr.s_addr = INADDR_ANY; + + memset(&sin_mc, 0, sizeof(sin_mc)); + sin_mc.sin_port = htons(ALFRED_PORT); + sin_mc.sin_family = AF_INET; + memcpy(&sin_mc.sin_addr, &alfred_mcast, sizeof(sin_mc.sin_addr)); + + enable_raw_bind_capability(1); + if (setsockopt(sock, SOL_SOCKET, SO_BINDTODEVICE, interface->interface, + strlen(interface->interface) + 1)) { + perror("ipv4: can't bind to device"); + goto err; + } + + if (setsockopt(sock_mc, SOL_SOCKET, SO_BINDTODEVICE, + interface->interface, strlen(interface->interface) + 1)) { + perror("ipv4: can't bind to device"); + goto err; + } + enable_raw_bind_capability(0); + + ret = 1; + if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &ret, sizeof(ret)) < 0) { + perror("ipv4: can't set reuse flag"); + goto err; + } + if (setsockopt(sock_mc, SOL_SOCKET, SO_REUSEADDR, &ret, sizeof(ret)) < 0) { + perror("ipv4: can't set mc reuse flag"); + goto err; + } + + if (bind(sock, (struct sockaddr *)&sin4, sizeof(sin4)) < 0) { + perror("ipv4: can't bind"); + goto err; + } + + if (bind(sock_mc, (struct sockaddr *)&sin_mc, sizeof(sin_mc)) < 0) { + perror("ipv4: can't bind mc"); + goto err; + } + + memcpy(&mreq.imr_multiaddr, &alfred_mcast.ipv4, sizeof(mreq.imr_multiaddr)); + + if (ioctl(sock_mc, SIOCGIFADDR, &ifr) < 0) { + perror("ipv4: can't get IP address"); + goto err; + } + mreq.imr_interface = ((struct sockaddr_in *)&ifr.ifr_addr)->sin_addr; + memcpy(&interface->address.ipv4, + &((struct sockaddr_in *)&ifr.ifr_addr)->sin_addr, + sizeof(struct in_addr)); + + if (setsockopt(sock_mc, IPPROTO_IP, IP_ADD_MEMBERSHIP, &mreq, sizeof(mreq))) { + perror("ipv4: can't add multicast membership"); + goto err; + } + + ret = fcntl(sock, F_GETFL, 0); + if (ret < 0) { + perror("failed to get file status flags"); + goto err; + } + + ret = fcntl(sock, F_SETFL, ret | O_NONBLOCK); + if (ret < 0) { + perror("failed to set file status flags"); + goto err; + } + + ret = fcntl(sock_mc, F_GETFL, 0); + if (ret < 0) { + perror("ipv4: failed to get file status flags"); + goto err; + } + + ret = fcntl(sock_mc, F_SETFL, ret | O_NONBLOCK); + if (ret < 0) { + perror("ipv4: failed to set file status flags"); + goto err; + } + + interface->netsock = sock; + interface->netsock_mcast = sock_mc; + + return 0; +err: + close(sock); + close(sock_mc); + return -1; +} + int netsock_open_all(struct globals *globals) { int num_socks = 0; @@ -342,7 +472,11 @@ int netsock_open_all(struct globals *globals) struct interface *interface; list_for_each_entry(interface, &globals->interfaces, list) { - ret = netsock_open(interface); + if (globals->ipv4mode) + ret = netsock_open4(interface); + else + ret = netsock_open(interface); + if (ret >= 0) num_socks++; } @@ -355,8 +489,12 @@ void netsock_reopen(struct globals *globals) struct interface *interface; list_for_each_entry(interface, &globals->interfaces, list) { - if (interface->netsock < 0) - netsock_open(interface); + if (interface->netsock < 0) { + if (globals->ipv4mode) + netsock_open4(interface); + else + netsock_open(interface); + } } } @@ -430,7 +568,7 @@ int netsock_receive_packet(struct globals *globals, fd_set *fds) } int netsock_own_address(const struct globals *globals, - const struct in6_addr *address) + const alfred_addr *address) { struct interface *interface; diff --git a/recv.c b/recv.c index bb8cc05..3fd964d 100644 --- a/recv.c +++ b/recv.c @@ -190,7 +190,8 @@ static int finish_alfred_transaction(struct globals *globals, } static int process_alfred_push_data(struct globals *globals, - struct in6_addr *source, + struct interface *interface, + alfred_addr *source, struct alfred_push_data_v0 *push) { int len; @@ -200,7 +201,10 @@ static int process_alfred_push_data(struct globals *globals, struct transaction_packet *transaction_packet; int found; - ret = ipv6_to_mac(source, &mac); + if (globals->ipv4mode) + ret = ipv4_to_mac(interface, source, &mac); + else + ret = ipv6_to_mac(source, &mac); if (ret < 0) goto err; @@ -260,7 +264,7 @@ err: static int process_alfred_announce_master(struct globals *globals, struct interface *interface, - struct in6_addr *source, + alfred_addr *source, struct alfred_announce_master_v0 *announce) { struct server *server; @@ -271,7 +275,10 @@ process_alfred_announce_master(struct globals *globals, len = ntohs(announce->header.length); - ret = ipv6_to_mac(source, &mac); + if (globals->ipv4mode) + ret = ipv4_to_mac(interface, source, &mac); + else + ret = ipv6_to_mac(source, &mac); if (ret < 0) return -1; @@ -316,7 +323,7 @@ process_alfred_announce_master(struct globals *globals, static int process_alfred_request(struct globals *globals, struct interface *interface, - struct in6_addr *source, + alfred_addr *source, struct alfred_request_v0 *request) { int len; @@ -336,7 +343,8 @@ static int process_alfred_request(struct globals *globals, } static int process_alfred_status_txend(struct globals *globals, - struct in6_addr *source, + struct interface *interface, + alfred_addr *source, struct alfred_status_v0 *request) { struct transaction_head search, *head; @@ -351,7 +359,10 @@ static int process_alfred_status_txend(struct globals *globals, if (len != (sizeof(*request) - sizeof(request->header))) return -1; - ret = ipv6_to_mac(source, &mac); + if (globals->ipv4mode) + ret = ipv4_to_mac(interface, source, &mac); + else + ret = ipv6_to_mac(source, &mac); if (ret < 0) return -1; @@ -389,15 +400,25 @@ int recv_alfred_packet(struct globals *globals, struct interface *interface, uint8_t buf[MAX_PAYLOAD]; ssize_t length; struct alfred_tlv *packet; - struct sockaddr_in6 source; + struct sockaddr_in *source; + struct sockaddr_in source4; + struct sockaddr_in6 source6; socklen_t sourcelen; + alfred_addr alfred_source; if (interface->netsock < 0) return -1; - sourcelen = sizeof(source); + if (globals->ipv4mode) { + source = (struct sockaddr_in *)&source4; + sourcelen = sizeof(source4); + } else { + source = (struct sockaddr_in *)&source6; + sourcelen = sizeof(source6); + } + length = recvfrom(recv_sock, buf, sizeof(buf), 0, - (struct sockaddr *)&source, &sourcelen); + (struct sockaddr *)source, &sourcelen); if (length <= 0) { perror("read from network socket failed"); return -1; @@ -405,12 +426,18 @@ int recv_alfred_packet(struct globals *globals, struct interface *interface, packet = (struct alfred_tlv *)buf; - /* drop packets not sent over link-local ipv6 */ - if (!is_ipv6_eui64(&source.sin6_addr)) - return -1; + if (globals->ipv4mode) { + memcpy(&alfred_source, &source4.sin_addr, sizeof(source4.sin_addr)); + } else { + memcpy(&alfred_source, &source6.sin6_addr, sizeof(source6.sin6_addr)); + + /* drop packets not sent over link-local ipv6 */ + if (!is_ipv6_eui64(&alfred_source.ipv6)) + return -1; + } /* drop packets from ourselves */ - if (netsock_own_address(globals, &source.sin6_addr)) + if (netsock_own_address(globals, &alfred_source)) return -1; /* drop truncated packets */ @@ -424,20 +451,20 @@ int recv_alfred_packet(struct globals *globals, struct interface *interface, switch (packet->type) { case ALFRED_PUSH_DATA: - process_alfred_push_data(globals, &source.sin6_addr, + process_alfred_push_data(globals, interface, &alfred_source, (struct alfred_push_data_v0 *)packet); break; case ALFRED_ANNOUNCE_MASTER: process_alfred_announce_master(globals, interface, - &source.sin6_addr, + &alfred_source, (struct alfred_announce_master_v0 *)packet); break; case ALFRED_REQUEST: - process_alfred_request(globals, interface, &source.sin6_addr, + process_alfred_request(globals, interface, &alfred_source, (struct alfred_request_v0 *)packet); break; case ALFRED_STATUS_TXEND: - process_alfred_status_txend(globals, &source.sin6_addr, + process_alfred_status_txend(globals, interface, &alfred_source, (struct alfred_status_v0 *)packet); break; default: diff --git a/send.c b/send.c index c7a2af2..b566503 100644 --- a/send.c +++ b/send.c @@ -42,7 +42,7 @@ int announce_master(struct globals *globals) announcement.header.version = ALFRED_VERSION; announcement.header.length = htons(0); - send_alfred_packet(interface, &in6addr_localmcast, + send_alfred_packet(globals, interface, &alfred_mcast, &announcement, sizeof(announcement)); } @@ -50,7 +50,7 @@ int announce_master(struct globals *globals) } int push_data(struct globals *globals, struct interface *interface, - struct in6_addr *destination, enum data_source max_source_level, + alfred_addr *destination, enum data_source max_source_level, int type_filter, uint16_t tx_id) { struct hash_it_t *hashit = NULL; @@ -90,7 +90,7 @@ int push_data(struct globals *globals, struct interface *interface, tlv_length += sizeof(*push) - sizeof(push->header); push->header.length = htons(tlv_length); push->tx.seqno = htons(seqno++); - send_alfred_packet(interface, destination, push, + send_alfred_packet(globals, interface, destination, push, sizeof(*push) + total_length); total_length = 0; } @@ -114,7 +114,7 @@ int push_data(struct globals *globals, struct interface *interface, tlv_length += sizeof(*push) - sizeof(push->header); push->header.length = htons(tlv_length); push->tx.seqno = htons(seqno++); - send_alfred_packet(interface, destination, push, + send_alfred_packet(globals, interface, destination, push, sizeof(*push) + total_length); } @@ -128,7 +128,7 @@ int push_data(struct globals *globals, struct interface *interface, status_end.tx.id = tx_id; status_end.tx.seqno = htons(seqno); - send_alfred_packet(interface, destination, &status_end, + send_alfred_packet(globals, interface, destination, &status_end, sizeof(status_end)); } @@ -170,24 +170,38 @@ int push_local_data(struct globals *globals) return 0; } -ssize_t send_alfred_packet(struct interface *interface, - const struct in6_addr *dest, void *buf, int length) +ssize_t send_alfred_packet(struct globals *globals, struct interface *interface, + const alfred_addr *dest, void *buf, int length) { ssize_t ret; - struct sockaddr_in6 dest_addr; - - memset(&dest_addr, 0, sizeof(dest_addr)); - dest_addr.sin6_family = AF_INET6; - dest_addr.sin6_port = htons(ALFRED_PORT); - dest_addr.sin6_scope_id = interface->scope_id; - memcpy(&dest_addr.sin6_addr, dest, sizeof(*dest)); + struct sockaddr *dest_addr; + struct sockaddr_in6 dest_addr6; + struct sockaddr_in dest_addr4; + socklen_t slen; + + if (globals->ipv4mode) { + memset(&dest_addr4, 0, sizeof(dest_addr4)); + dest_addr4.sin_family = AF_INET; + dest_addr4.sin_port = htons(ALFRED_PORT); + memcpy(&dest_addr4.sin_addr, &dest->ipv4, sizeof(dest->ipv4)); + + slen = sizeof(struct sockaddr_in); + dest_addr = (struct sockaddr *)&dest_addr4; + } else { + memset(&dest_addr6, 0, sizeof(dest_addr6)); + dest_addr6.sin6_family = AF_INET6; + dest_addr6.sin6_port = htons(ALFRED_PORT); + dest_addr6.sin6_scope_id = interface->scope_id; + memcpy(&dest_addr6.sin6_addr, &dest->ipv6, sizeof(dest->ipv6)); + + slen = sizeof(struct sockaddr_in6); + dest_addr = (struct sockaddr *)&dest_addr6; + } if (interface->netsock < 0) return 0; - ret = sendto(interface->netsock, buf, length, 0, - (struct sockaddr *)&dest_addr, - sizeof(struct sockaddr_in6)); + ret = sendto(interface->netsock, buf, length, 0, dest_addr, slen); if (ret == -EPERM) { perror("Error during sent"); close(interface->netsock); diff --git a/server.c b/server.c index f6e0c8a..2c4042a 100644 --- a/server.c +++ b/server.c @@ -218,7 +218,7 @@ static int purge_data(struct globals *globals) return 0; } -static void check_if_socket(struct interface *interface) +static void check_if_socket(struct interface *interface, struct globals *globals) { int sock; struct ifreq ifr; @@ -226,7 +226,7 @@ static void check_if_socket(struct interface *interface) if (interface->netsock < 0) return; - sock = socket(PF_INET6, SOCK_DGRAM, 0); + sock = socket(PF_INET, SOCK_DGRAM, 0); if (sock < 0) { perror("can't open socket"); return; @@ -240,7 +240,7 @@ static void check_if_socket(struct interface *interface) goto close; } - if (interface->scope_id != (uint32_t)ifr.ifr_ifindex) { + if (!globals->ipv4mode && (interface->scope_id != (uint32_t)ifr.ifr_ifindex)) { fprintf(stderr, "iface index changed from %"PRIu32" to %d, closing netsock\n", interface->scope_id, ifr.ifr_ifindex); @@ -282,7 +282,7 @@ static void check_if_sockets(struct globals *globals) globals->if_check = now; list_for_each_entry(interface, &globals->interfaces, list) - check_if_socket(interface); + check_if_socket(interface, globals); } static void execute_update_command(struct globals *globals) diff --git a/unix_sock.c b/unix_sock.c index 0a819a2..4a8c6e0 100644 --- a/unix_sock.c +++ b/unix_sock.c @@ -258,7 +258,7 @@ static int unix_sock_req_data(struct globals *globals, head->client_socket = client_sock; head->requested_type = request->requested_type; - send_alfred_packet(interface, &globals->best_server->address, + send_alfred_packet(globals, interface, &globals->best_server->address, request, sizeof(*request)); return 0; diff --git a/util.c b/util.c index ea75643..84ab3af 100644 --- a/util.c +++ b/util.c @@ -23,7 +23,10 @@ #include <stdbool.h> #include <stddef.h> #include <stdint.h> +#include <stdio.h> #include <stdlib.h> +#include <string.h> +#include <sys/ioctl.h> #include <sys/time.h> #include <time.h> #include "alfred.h" @@ -75,3 +78,30 @@ bool is_valid_ether_addr(uint8_t addr[ETH_ALEN]) return true; } + +int ipv4_arp_request(struct interface *interface, const alfred_addr *addr, + struct ether_addr *mac) +{ + struct arpreq arpreq; + struct sockaddr_in *sin; + + memset(&arpreq, 0, sizeof(arpreq)); + memset(mac, 0, ETH_ALEN); + + sin = (struct sockaddr_in *)&arpreq.arp_pa; + sin->sin_family = AF_INET; + sin->sin_addr.s_addr = addr->ipv4.s_addr; + + strcpy(arpreq.arp_dev, interface->interface); + if (ioctl(interface->netsock, SIOCGARP, &arpreq) < 0) + return -1; + + if (arpreq.arp_flags & ATF_COM) { + memcpy(mac, arpreq.arp_ha.sa_data, sizeof(*mac)); + } else { + perror("arp: incomplete"); + return -1; + } + + return 0; +} -- 2.7.4

6 years, 2 months

[B.A.T.M.A.N.] [PATCH] batman-adv: Simplify handling of NET_XMIT_CN

by Sven Eckelmann

The handling of NET_XMIT_CN can be avoided in functions which (indirectly) are using batadv_send_skb_packet. Instead batadv_send_skb_packet can take care that the return code of dev_queue_xmit is never NET_XMIT_CN. NET_XMIT_CN will therefore always be mapped to a NET_XMIT_SUCCESS. Cc: Gao Feng <gfree.wind(a)gmail.com> Reported-by: David Miller <davem(a)davemloft.net> Signed-off-by: Sven Eckelmann <sven(a)narfation.org> --- The result of this change is: - all code changes of 1120b81c7418 ("batman-adv: Treat NET_XMIT_CN as transmit successfully") are reverted - The change to send.c is added net/batman-adv/distributed-arp-table.c | 3 +-- net/batman-adv/fragmentation.c | 2 +- net/batman-adv/routing.c | 9 +++++---- net/batman-adv/send.c | 2 +- net/batman-adv/soft-interface.c | 2 +- net/batman-adv/tp_meter.c | 2 +- 6 files changed, 10 insertions(+), 10 deletions(-) diff --git a/net/batman-adv/distributed-arp-table.c b/net/batman-adv/distributed-arp-table.c index b13c018..1bfd1db 100644 --- a/net/batman-adv/distributed-arp-table.c +++ b/net/batman-adv/distributed-arp-table.c @@ -659,8 +659,7 @@ static bool batadv_dat_send_data(struct batadv_priv *bat_priv, } send_status = batadv_send_unicast_skb(tmp_skb, neigh_node); - if (send_status == NET_XMIT_SUCCESS || - send_status == NET_XMIT_CN) { + if (send_status == NET_XMIT_SUCCESS) { /* count the sent packet */ switch (packet_subtype) { case BATADV_P_DAT_DHT_GET: diff --git a/net/batman-adv/fragmentation.c b/net/batman-adv/fragmentation.c index eb85153..ead18ca 100644 --- a/net/batman-adv/fragmentation.c +++ b/net/batman-adv/fragmentation.c @@ -509,7 +509,7 @@ int batadv_frag_send_packet(struct sk_buff *skb, batadv_add_counter(bat_priv, BATADV_CNT_FRAG_TX_BYTES, skb_fragment->len + ETH_HLEN); ret = batadv_send_unicast_skb(skb_fragment, neigh_node); - if (ret != NET_XMIT_SUCCESS && ret != NET_XMIT_CN) { + if (ret != NET_XMIT_SUCCESS) { ret = NET_XMIT_DROP; goto put_primary_if; } diff --git a/net/batman-adv/routing.c b/net/batman-adv/routing.c index bf5a0b9..7fd740b 100644 --- a/net/batman-adv/routing.c +++ b/net/batman-adv/routing.c @@ -262,7 +262,7 @@ static int batadv_recv_my_icmp_packet(struct batadv_priv *bat_priv, icmph->ttl = BATADV_TTL; res = batadv_send_skb_to_orig(skb, orig_node, NULL); - if (res == NET_XMIT_SUCCESS || res == NET_XMIT_CN) + if (res == NET_XMIT_SUCCESS) ret = NET_RX_SUCCESS; /* skb was consumed */ @@ -330,7 +330,7 @@ static int batadv_recv_icmp_ttl_exceeded(struct batadv_priv *bat_priv, icmp_packet->ttl = BATADV_TTL; res = batadv_send_skb_to_orig(skb, orig_node, NULL); - if (res == NET_RX_SUCCESS || res == NET_XMIT_CN) + if (res == NET_RX_SUCCESS) ret = NET_XMIT_SUCCESS; /* skb was consumed */ @@ -424,7 +424,7 @@ int batadv_recv_icmp_packet(struct sk_buff *skb, /* route it */ res = batadv_send_skb_to_orig(skb, orig_node, recv_if); - if (res == NET_XMIT_SUCCESS || res == NET_XMIT_CN) + if (res == NET_XMIT_SUCCESS) ret = NET_RX_SUCCESS; /* skb was consumed */ @@ -719,8 +719,9 @@ static int batadv_route_unicast_packet(struct sk_buff *skb, len = skb->len; res = batadv_send_skb_to_orig(skb, orig_node, recv_if); + /* translate transmit result into receive result */ - if (res == NET_XMIT_SUCCESS || res == NET_XMIT_CN) { + if (res == NET_XMIT_SUCCESS) { ret = NET_RX_SUCCESS; /* skb was transmitted and consumed */ batadv_inc_counter(bat_priv, BATADV_CNT_FORWARD); diff --git a/net/batman-adv/send.c b/net/batman-adv/send.c index d730826..d9b2889 100644 --- a/net/batman-adv/send.c +++ b/net/batman-adv/send.c @@ -115,7 +115,7 @@ int batadv_send_skb_packet(struct sk_buff *skb, * congestion and traffic shaping, it drops and returns NET_XMIT_DROP * (which is > 0). This will not be treated as an error. */ - return dev_queue_xmit(skb); + return net_xmit_eval(dev_queue_xmit(skb)); send_skb_err: kfree_skb(skb); return NET_XMIT_DROP; diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c index b506781..5d099b2 100644 --- a/net/batman-adv/soft-interface.c +++ b/net/batman-adv/soft-interface.c @@ -387,7 +387,7 @@ send: ret = batadv_send_skb_via_tt(bat_priv, skb, dst_hint, vid); } - if (ret != NET_XMIT_SUCCESS && ret != NET_XMIT_CN) + if (ret != NET_XMIT_SUCCESS) goto dropped_freed; } diff --git a/net/batman-adv/tp_meter.c b/net/batman-adv/tp_meter.c index 392a60d..07f64b6 100644 --- a/net/batman-adv/tp_meter.c +++ b/net/batman-adv/tp_meter.c @@ -615,7 +615,7 @@ static int batadv_tp_send_msg(struct batadv_tp_vars *tp_vars, const u8 *src, batadv_tp_fill_prerandom(tp_vars, data, data_len); r = batadv_send_skb_to_orig(skb, orig_node, NULL); - if (r == NET_XMIT_SUCCESS || r == NET_XMIT_CN) + if (r == NET_XMIT_SUCCESS) return 0; return BATADV_TP_REASON_CANT_SEND; -- 2.11.0

6 years, 2 months

[B.A.T.M.A.N.] [PATCH 0/1] pull request for net: batman-adv 2017-01-25

by Simon Wunderlich

Hi David, here is a bugfix for net which we would like to have integrated. Please pull or let me know of any problem! Thank you, Simon The following changes since commit 7ce7d89f48834cefece7804d38fc5d85382edf77: Linux 4.10-rc1 (2016-12-25 16:13:08 -0800) are available in the git repository at: git://git.open-mesh.org/linux-merge.git tags/batadv-net-for-davem-20170125 for you to fetch changes up to 4ea33ef0f9e95b69db9131d7afd98563713e81b0: batman-adv: Decrease hardif refcnt on fragmentation send error (2017-01-04 08:22:04 +0100) ---------------------------------------------------------------- Here is a batman-adv bugfix: - fix reference count handling on fragmentation error, by Sven Eckelmann ---------------------------------------------------------------- Sven Eckelmann (1): batman-adv: Decrease hardif refcnt on fragmentation send error net/batman-adv/fragmentation.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-)

6 years, 2 months

[B.A.T.M.A.N.] [PATCH 0/7] pull request for net-next: batman-adv 2017-01-25

by Simon Wunderlich

Hi David, here is a small feature/cleanup pull request of batman-adv to go into net-next. Please pull or let me know of any problem! Thank you, Simon The following changes since commit 7ce7d89f48834cefece7804d38fc5d85382edf77: Linux 4.10-rc1 (2016-12-25 16:13:08 -0800) are available in the git repository at: git://git.open-mesh.org/linux-merge.git tags/batadv-next-for-davem-20170125 for you to fetch changes up to 03d17903cbfdc3bdf6e08c9fb6603936135bba5b: batman-adv: Remove unused variable in batadv_tt_local_set_flags (2017-01-04 08:20:21 +0100) ---------------------------------------------------------------- This feature/cleanup patchset includes the following patches: - bump version strings, by Simon Wunderlich - Handle NET_XMIT_CN like NET_XMIT_SUCCESS, and a follow up code clean up, by Gao Feng (2 patches) - ignore self-generated loop detect MAC addresses in translation table, by Simon Wunderlich - install uapi batman_adv.h header, by Sven Eckelmann - bump copyright years, by Sven Eckelmann - Remove an unused variable in translation table code, by Sven Eckelmann ---------------------------------------------------------------- Gao Feng (2): batman-adv: Treat NET_XMIT_CN as transmit successfully batman-adv: Remove one condition check in batadv_route_unicast_packet Simon Wunderlich (2): batman-adv: Start new development cycle batman-adv: don't add loop detect macs to TT Sven Eckelmann (3): uapi: install batman_adv.h header batman-adv: update copyright years for 2017 batman-adv: Remove unused variable in batadv_tt_local_set_flags include/uapi/linux/Kbuild | 1 + include/uapi/linux/batman_adv.h | 2 +- net/batman-adv/Makefile | 2 +- net/batman-adv/bat_algo.c | 2 +- net/batman-adv/bat_algo.h | 2 +- net/batman-adv/bat_iv_ogm.c | 2 +- net/batman-adv/bat_iv_ogm.h | 2 +- net/batman-adv/bat_v.c | 2 +- net/batman-adv/bat_v.h | 2 +- net/batman-adv/bat_v_elp.c | 2 +- net/batman-adv/bat_v_elp.h | 2 +- net/batman-adv/bat_v_ogm.c | 2 +- net/batman-adv/bat_v_ogm.h | 2 +- net/batman-adv/bitarray.c | 2 +- net/batman-adv/bitarray.h | 2 +- net/batman-adv/bridge_loop_avoidance.c | 2 +- net/batman-adv/bridge_loop_avoidance.h | 20 +++++++++++++++++++- net/batman-adv/debugfs.c | 2 +- net/batman-adv/debugfs.h | 2 +- net/batman-adv/distributed-arp-table.c | 5 +++-- net/batman-adv/distributed-arp-table.h | 2 +- net/batman-adv/fragmentation.c | 4 ++-- net/batman-adv/fragmentation.h | 2 +- net/batman-adv/gateway_client.c | 2 +- net/batman-adv/gateway_client.h | 2 +- net/batman-adv/gateway_common.c | 2 +- net/batman-adv/gateway_common.h | 2 +- net/batman-adv/hard-interface.c | 2 +- net/batman-adv/hard-interface.h | 2 +- net/batman-adv/hash.c | 2 +- net/batman-adv/hash.h | 2 +- net/batman-adv/icmp_socket.c | 2 +- net/batman-adv/icmp_socket.h | 2 +- net/batman-adv/log.c | 2 +- net/batman-adv/log.h | 2 +- net/batman-adv/main.c | 2 +- net/batman-adv/main.h | 4 ++-- net/batman-adv/multicast.c | 2 +- net/batman-adv/multicast.h | 2 +- net/batman-adv/netlink.c | 2 +- net/batman-adv/netlink.h | 2 +- net/batman-adv/network-coding.c | 2 +- net/batman-adv/network-coding.h | 2 +- net/batman-adv/originator.c | 2 +- net/batman-adv/originator.h | 2 +- net/batman-adv/packet.h | 2 +- net/batman-adv/routing.c | 20 +++++++++----------- net/batman-adv/routing.h | 2 +- net/batman-adv/send.c | 2 +- net/batman-adv/send.h | 2 +- net/batman-adv/soft-interface.c | 7 ++++--- net/batman-adv/soft-interface.h | 2 +- net/batman-adv/sysfs.c | 2 +- net/batman-adv/sysfs.h | 2 +- net/batman-adv/tp_meter.c | 4 ++-- net/batman-adv/tp_meter.h | 2 +- net/batman-adv/translation-table.c | 4 +--- net/batman-adv/translation-table.h | 2 +- net/batman-adv/tvlv.c | 2 +- net/batman-adv/tvlv.h | 2 +- net/batman-adv/types.h | 2 +- 61 files changed, 95 insertions(+), 78 deletions(-)

6 years, 2 months

[B.A.T.M.A.N.] limit of if per batman

by jens

heya, i want to do some wireguard/gretap tunnel - and many of them somebody told me that for gre there is a limit of 255 per kernel, does this also aply for gretap and mainly - is there a limit for if i can add to bat0 - since every gretap is a "if" thx, fuzzle, freiburg -- make the world nicer, please use PGP encryption

6 years, 2 months

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B.A.T.M.A.N January 2017