diff options
Diffstat (limited to 'sysdep/linux/netlink')
| -rw-r--r-- | sysdep/linux/netlink/Modules | 8 | ||||
| -rw-r--r-- | sysdep/linux/netlink/krt-iface.h | 26 | ||||
| -rw-r--r-- | sysdep/linux/netlink/krt-scan.h | 26 | ||||
| -rw-r--r-- | sysdep/linux/netlink/krt-set.h | 26 | ||||
| -rw-r--r-- | sysdep/linux/netlink/krt.Y | 46 | ||||
| -rw-r--r-- | sysdep/linux/netlink/krt.h | 30 | ||||
| -rw-r--r-- | sysdep/linux/netlink/netlink.Y | 25 | ||||
| -rw-r--r-- | sysdep/linux/netlink/netlink.c (renamed from sysdep/linux/netlink/krt.c) | 113 |
8 files changed, 161 insertions, 139 deletions
diff --git a/sysdep/linux/netlink/Modules b/sysdep/linux/netlink/Modules index 8033810..c26f7f7 100644 --- a/sysdep/linux/netlink/Modules +++ b/sysdep/linux/netlink/Modules @@ -1,3 +1,5 @@ -krt.c -krt.h -krt.Y +krt-iface.h +krt-set.h +krt-scan.h +netlink.c +netlink.Y diff --git a/sysdep/linux/netlink/krt-iface.h b/sysdep/linux/netlink/krt-iface.h new file mode 100644 index 0000000..5dfb934 --- /dev/null +++ b/sysdep/linux/netlink/krt-iface.h @@ -0,0 +1,26 @@ +/* + * BIRD -- Unix Kernel Netlink Interface Syncer -- Dummy Include File + * + * (c) 1998--1999 Martin Mares <mj@ucw.cz> + * + * Can be freely distributed and used under the terms of the GNU GPL. + */ + +#ifndef _BIRD_KRT_IFACE_H_ +#define _BIRD_KRT_IFACE_H_ + +/* + * We don't have split iface/scan/set parts. See krt-scan.h. + */ + +struct krt_if_params { +}; + +struct krt_if_status { +}; + +static inline void krt_if_preconfig(struct krt_config *c) { }; +static inline void krt_if_start(struct krt_proto *p) { }; +static inline void krt_if_shutdown(struct krt_proto *p) { }; + +#endif diff --git a/sysdep/linux/netlink/krt-scan.h b/sysdep/linux/netlink/krt-scan.h new file mode 100644 index 0000000..cd118de --- /dev/null +++ b/sysdep/linux/netlink/krt-scan.h @@ -0,0 +1,26 @@ +/* + * BIRD -- Linux Kernel Netlink Route Syncer -- Scanning + * + * (c) 1998--1999 Martin Mares <mj@ucw.cz> + * + * Can be freely distributed and used under the terms of the GNU GPL. + */ + +#ifndef _BIRD_KRT_SCAN_H_ +#define _BIRD_KRT_SCAN_H_ + +/* + * We don't have split iface/scan/set for Netlink. All options + * and run-time parameters are declared here instead of splitting + * to krt-set.h, krt-iface.h and this file. + */ + +struct krt_scan_params { + int async; /* Allow asynchronous events */ +}; + +struct krt_scan_status { + list temp_ifs; /* Temporary interfaces */ +}; + +#endif diff --git a/sysdep/linux/netlink/krt-set.h b/sysdep/linux/netlink/krt-set.h new file mode 100644 index 0000000..32fdad0 --- /dev/null +++ b/sysdep/linux/netlink/krt-set.h @@ -0,0 +1,26 @@ +/* + * BIRD -- Unix Kernel Netlink Route Syncer -- Dummy Include File + * + * (c) 1998--1999 Martin Mares <mj@ucw.cz> + * + * Can be freely distributed and used under the terms of the GNU GPL. + */ + +#ifndef _BIRD_KRT_SET_H_ +#define _BIRD_KRT_SET_H_ + +/* + * We don't have split iface/scan/set parts. See krt-scan.h. + */ + +struct krt_set_params { +}; + +struct krt_set_status { +}; + +static inline void krt_set_preconfig(struct krt_config *c) { }; +static inline void krt_set_start(struct krt_proto *p) { }; +static inline void krt_set_shutdown(struct krt_proto *p) { }; + +#endif diff --git a/sysdep/linux/netlink/krt.Y b/sysdep/linux/netlink/krt.Y deleted file mode 100644 index c572640..0000000 --- a/sysdep/linux/netlink/krt.Y +++ /dev/null @@ -1,46 +0,0 @@ -/* - * BIRD -- Netlink Interface Configuration - * - * (c) 1999 Martin Mares <mj@ucw.cz> - * - * Can be freely distributed and used under the terms of the GNU GPL. - */ - -CF_HDR - -#include "lib/krt.h" - -#define KRT_PROTO ((struct krt_config *) this_proto) - -CF_DECLS - -CF_KEYWORDS(KERNEL, PERSIST, ROUTE, SCAN, TIME, LEARN) - -CF_GRAMMAR - -/* Kernel protocol */ - -CF_ADDTO(proto, kern_proto '}') - -kern_proto_start: proto_start KERNEL { - if (!(this_proto = cf_krt)) cf_error("Kernel protocol already defined"); - cf_krt = NULL; - } - ; - -kern_proto: - kern_proto_start '{' - | kern_proto proto_item ';' - | kern_proto kern_item ';' - ; - -kern_item: - PERSIST bool { KRT_PROTO->persist = $2; } - | SCAN TIME expr { KRT_PROTO->scan_time = $3; } - | LEARN bool { KRT_PROTO->learn = $2; } - | ROUTE SCAN TIME expr { KRT_PROTO->route_scan_time = $4; } - ; - -CF_CODE - -CF_END diff --git a/sysdep/linux/netlink/krt.h b/sysdep/linux/netlink/krt.h deleted file mode 100644 index 8dd55cc..0000000 --- a/sysdep/linux/netlink/krt.h +++ /dev/null @@ -1,30 +0,0 @@ -/* - * BIRD -- Linux Netlink Interface - * - * (c) 1999 Martin Mares <mj@ucw.cz> - * - * Can be freely distributed and used under the terms of the GNU GPL. - */ - -#ifndef _BIRD_NETLINK_KRT_H_ -#define _BIRD_NETLINK_KRT_H_ - -extern struct protocol proto_unix_kernel; - -struct krt_config { - struct proto_config c; - int persist; /* Keep routes when we exit */ - int scan_time; /* How often we re-scan interfaces */ - int route_scan_time; /* How often we re-scan routes */ - int learn; /* Learn routes from other sources */ -}; - -extern struct proto_config *cf_krt; - -struct krt_proto { - struct proto p; -}; - -void scan_if_init(void); - -#endif diff --git a/sysdep/linux/netlink/netlink.Y b/sysdep/linux/netlink/netlink.Y new file mode 100644 index 0000000..b5c45f2 --- /dev/null +++ b/sysdep/linux/netlink/netlink.Y @@ -0,0 +1,25 @@ +/* + * BIRD -- Linux Netlink Configuration + * + * (c) 1999 Martin Mares <mj@ucw.cz> + * + * Can be freely distributed and used under the terms of the GNU GPL. + */ + +CF_HDR + +CF_DECLS + +CF_KEYWORDS(ASYNC) + +CF_GRAMMAR + +CF_ADDTO(kern_proto, kern_proto nl_item ';') + +nl_item: + ASYNC bool { THIS_KRT->scan.async = $2; } + ; + +CF_CODE + +CF_END diff --git a/sysdep/linux/netlink/krt.c b/sysdep/linux/netlink/netlink.c index c399e20..6e6fafd 100644 --- a/sysdep/linux/netlink/krt.c +++ b/sysdep/linux/netlink/netlink.c @@ -15,8 +15,6 @@ #define LOCAL_DEBUG -#undef ASYNC_NETLINK /* Define if async notifications should be used (debug) */ - #include "nest/bird.h" #include "nest/route.h" #include "nest/protocol.h" @@ -46,13 +44,11 @@ #define MSG_TRUNC 0x20 #endif -struct proto_config *cf_krt; - /* * Synchronous Netlink interface */ -static int nl_sync_fd; /* Unix socket for synchronous netlink actions */ +static int nl_sync_fd = -1; /* Unix socket for synchronous netlink actions */ static u32 nl_sync_seq; /* Sequence number of last request sent */ static byte *nl_rx_buffer; /* Receive buffer */ @@ -62,6 +58,19 @@ static struct nlmsghdr *nl_last_hdr; /* Recently received packet */ static unsigned int nl_last_size; static void +nl_open(void) +{ + if (nl_sync_fd < 0) + { + nl_sync_fd = socket(PF_NETLINK, SOCK_RAW, NETLINK_ROUTE); + if (nl_sync_fd < 0) + die("Unable to open rtnetlink socket: %m"); + nl_sync_seq = now; + nl_rx_buffer = xmalloc(nl_rx_size); + } +} + +static void nl_send(void *rq, int size) { struct nlmsghdr *nh = rq; @@ -327,8 +336,8 @@ nl_parse_addr(struct nlmsghdr *h) if_update(&f); } -static void -nl_scan_ifaces(void) +void +krt_if_scan(struct krt_proto *p) { struct nlmsghdr *h; @@ -352,46 +361,48 @@ nl_scan_ifaces(void) } /* - * Asynchronous Netlink interface + * Routes */ -static sock *nl_async_sk; /* BIRD socket for asynchronous notifications */ +int +krt_capable(rte *e) +{ + return 1; /* FIXME */ +} -static int -nl_async_hook(sock *sk, int size) +void +krt_set_notify(struct proto *p, net *n, rte *new, rte *old) +{ + /* FIXME */ +} + +void +krt_scan_fire(struct krt_proto *p) { - DBG("nl_async_hook\n"); - return 0; } /* - * Protocol core + * Asynchronous Netlink interface */ -static void -krt_preconfig(struct protocol *x, struct config *c) -{ - struct krt_config *z = proto_config_new(&proto_unix_kernel, sizeof(struct krt_config)); - - cf_krt = &z->c; - z->c.preference = DEF_PREF_UKR; -} +static sock *nl_async_sk; /* BIRD socket for asynchronous notifications */ -static struct proto * -krt_init(struct proto_config *c) +static int +nl_async_hook(sock *sk, int size) { - struct krt_proto *p = proto_new(c, sizeof(struct krt_proto)); - - return &p->p; + DBG("nl_async_hook\n"); + return 0; } static void -nl_open_async(struct proto *p) +nl_open_async(struct krt_proto *p) { sock *sk; struct sockaddr_nl sa; - sk = nl_async_sk = sk_new(p->pool); + DBG("KRT: Opening async netlink socket\n"); + + sk = nl_async_sk = sk_new(p->p.pool); sk->type = SK_MAGIC; sk->rx_hook = nl_async_hook; sk->fd = socket(PF_NETLINK, SOCK_RAW, NETLINK_ROUTE); @@ -405,43 +416,25 @@ nl_open_async(struct proto *p) die("Unable to bind secondary rtnetlink socket: %m"); } -static int -krt_start(struct proto *p) -{ -#ifdef ASYNC_NETLINK - nl_open_async(p); -#endif - - /* FIXME: Filter kernel routing table etc. */ +/* + * Interface to the UNIX krt module + */ - return PS_UP; +void +krt_scan_preconfig(struct krt_config *x) +{ + x->scan.async = 1; } -static int -krt_shutdown(struct proto *p) +void +krt_scan_start(struct krt_proto *p) { - /* FIXME: Remove all our routes from the kernel */ - - return PS_DOWN; + nl_open(); + if (KRT_CF->scan.async) + nl_open_async(p); } void -scan_if_init(void) +krt_scan_shutdown(struct krt_proto *p) { - nl_sync_fd = socket(PF_NETLINK, SOCK_RAW, NETLINK_ROUTE); - if (nl_sync_fd < 0) - die("Unable to open rtnetlink socket: %m"); - nl_sync_seq = now; - nl_rx_buffer = xmalloc(nl_rx_size); - /* FIXME: Should we fetch our local address and compare it with addresses of all incoming messages? */ - - nl_scan_ifaces(); } - -struct protocol proto_unix_kernel = { - name: "Kernel", - preconfig: krt_preconfig, - init: krt_init, - start: krt_start, - shutdown: krt_shutdown -}; |