From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8F9A23B8413; Mon, 15 Jun 2026 22:29:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781562586; cv=none; b=clzIQQdafNwWYgFVNFZbN18JAALWujf0B3USpPKaJdUh8W88DbByl5/JEqxxdXz3OXkFCcGbBCldkAcJBl3ZLZK7VFCKz39LvG8YRX0X6o9NBJmFKDZOPPAqEqZvFb9PDVcPhqZT0RjEcGjyzMVQs6bpYVHDZaWC9jyfIRlrOlk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781562586; c=relaxed/simple; bh=XdeBU+C1kLyTCP62Z/i5bqB7OYH1jHwE9xSEXi25aF0=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=XkGyY7hAjrlqv9zldwHJpnELu8xS1jhjx8NrLHLXzlgHjhnW34V55QVus+MVrKHDAvTmRQ7Xtwp8KPwKUQEbpiIkNKxItmFinAWc3TpTYKB+fzMjEraZ6qPfDrOgw0ElfqLieWTxjekjuzbVjQMeRCAgKzggtsaDQG5PWvLj3MU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=UlwdKeLg; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="UlwdKeLg" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8C04C1F00A3D; Mon, 15 Jun 2026 22:29:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1781562581; bh=O/bl1G7GDLAJiTcXNGMWwwflXIOD8zgU3eCTBs1RDJ4=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=UlwdKeLgKetGOrzVLHAZGvd6Tsa2PjGy/7pZVqzcTnK6E44hFAM7b2vqUDharheYN +CGZ/xW9DUd4peXZdnCmtJOq7EwCCWe/cxEdpBA2yEY15Jzz6r7AdIZv6ScpvCru1D 45f1PdMvujzCannGTmdTl0Gb0Dtm7+V3uaeA7RozM81Z8D1NPJoMDdOr2xwlrYxnE/ 41gt7XR/g0KtrBggxv7TrAD0a1bGglIZSWd5AvG57uAf7nvgJ8ukZJ0SJYq+JTEx9f JEqdG2JiWBrLIbjGFNGkBmNcXXkcNgf10KPtCf9pzHkeLri6uxEIgx1m+ft4neBUMS FeV7SIHWDU8Mg== From: Jakub Kicinski To: davem@davemloft.net Cc: netdev@vger.kernel.org, edumazet@google.com, pabeni@redhat.com, andrew+netdev@lunn.ch, horms@kernel.org, geert@linux-m68k.org, chleroy@kernel.org, npiggin@gmail.com, mpe@ellerman.id.au, maddy@linux.ibm.com, linux-mips@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linuxppc-dev@lists.ozlabs.org, Jakub Kicinski Subject: [PATCH net-next 2/2] appletalk: move the protocol out of tree Date: Mon, 15 Jun 2026 15:29:35 -0700 Message-ID: <20260615222935.947233-3-kuba@kernel.org> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260615222935.947233-1-kuba@kernel.org> References: <20260615222935.947233-1-kuba@kernel.org> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit AppleTalk has been removed in MacOS X 10.6 (Snow Leopard), in 2009, according to Wikipedia. We recently got a burst of AI generated fixes to this protocol which nobody is reviewing. Let AppleTalk follow AX.25 and hamradio out of the Linux tree. We we will maintain the code at: github.com/linux-netdev/mod-orphan for anyone interested in playing with it. Retain the uAPI for now. No strong reason, simply because I suspect keeping it will be less controversial. Signed-off-by: Jakub Kicinski --- MAINTAINERS | 5 +- Documentation/admin-guide/sysctl/net.rst | 46 +- net/Kconfig | 1 - net/appletalk/Kconfig | 30 - net/802/Makefile | 1 - net/Makefile | 1 - net/appletalk/Makefile | 10 - include/linux/atalk.h | 182 -- net/appletalk/aarp.c | 1041 ---------- net/appletalk/atalk_proc.c | 242 --- net/appletalk/ddp.c | 2055 ------------------- net/appletalk/sysctl_net_atalk.c | 58 - arch/arm/configs/ixp4xx_defconfig | 1 - arch/m68k/configs/amiga_defconfig | 1 - arch/m68k/configs/apollo_defconfig | 1 - arch/m68k/configs/atari_defconfig | 1 - arch/m68k/configs/bvme6000_defconfig | 1 - arch/m68k/configs/hp300_defconfig | 1 - arch/m68k/configs/mac_defconfig | 1 - arch/m68k/configs/multi_defconfig | 1 - arch/m68k/configs/mvme147_defconfig | 1 - arch/m68k/configs/mvme16x_defconfig | 1 - arch/m68k/configs/q40_defconfig | 1 - arch/m68k/configs/sun3_defconfig | 1 - arch/m68k/configs/sun3x_defconfig | 1 - arch/mips/configs/gpr_defconfig | 1 - arch/mips/configs/malta_defconfig | 1 - arch/mips/configs/malta_kvm_defconfig | 1 - arch/mips/configs/malta_qemu_32r6_defconfig | 1 - arch/mips/configs/maltaaprp_defconfig | 1 - arch/mips/configs/maltasmvp_defconfig | 1 - arch/mips/configs/maltasmvp_eva_defconfig | 1 - arch/mips/configs/maltaup_defconfig | 1 - arch/mips/configs/maltaup_xpa_defconfig | 1 - arch/mips/configs/mtx1_defconfig | 1 - arch/powerpc/configs/ppc6xx_defconfig | 1 - arch/sh/configs/landisk_defconfig | 1 - 37 files changed, 3 insertions(+), 3694 deletions(-) delete mode 100644 net/appletalk/Kconfig delete mode 100644 net/appletalk/Makefile delete mode 100644 include/linux/atalk.h delete mode 100644 net/appletalk/aarp.c delete mode 100644 net/appletalk/atalk_proc.c delete mode 100644 net/appletalk/ddp.c delete mode 100644 net/appletalk/sysctl_net_atalk.c diff --git a/MAINTAINERS b/MAINTAINERS index cc1dde0c9067..06df1171f4cf 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1968,10 +1968,9 @@ F: drivers/hwmon/applesmc.c APPLETALK NETWORK LAYER L: netdev@vger.kernel.org -S: Odd fixes -F: include/linux/atalk.h +S: Obsolete F: include/uapi/linux/atalk.h -F: net/appletalk/ +F: include/uapi/linux/if_ltalk.h APPLIED MICRO (APM) X-GENE DEVICE TREE SUPPORT M: Khuong Dinh diff --git a/Documentation/admin-guide/sysctl/net.rst b/Documentation/admin-guide/sysctl/net.rst index 0724a793798f..37c5a0624c5d 100644 --- a/Documentation/admin-guide/sysctl/net.rst +++ b/Documentation/admin-guide/sysctl/net.rst @@ -475,51 +475,7 @@ Please see: Documentation/networking/ip-sysctl.rst and Documentation/admin-guide/sysctl/net.rst for descriptions of these entries. -4. Appletalk ------------- - -The /proc/sys/net/appletalk directory holds the Appletalk configuration data -when Appletalk is loaded. The configurable parameters are: - -aarp-expiry-time ----------------- - -The amount of time we keep an ARP entry before expiring it. Used to age out -old hosts. - -aarp-resolve-time ------------------ - -The amount of time we will spend trying to resolve an Appletalk address. - -aarp-retransmit-limit ---------------------- - -The number of times we will retransmit a query before giving up. - -aarp-tick-time --------------- - -Controls the rate at which expires are checked. - -The directory /proc/net/appletalk holds the list of active Appletalk sockets -on a machine. - -The fields indicate the DDP type, the local address (in network:node format) -the remote address, the size of the transmit pending queue, the size of the -received queue (bytes waiting for applications to read) the state and the uid -owning the socket. - -/proc/net/atalk_iface lists all the interfaces configured for appletalk.It -shows the name of the interface, its Appletalk address, the network range on -that address (or network number for phase 1 networks), and the status of the -interface. - -/proc/net/atalk_route lists each known network route. It lists the target -(network) that the route leads to, the router (may be directly connected), the -route flags, and the device the route is using. - -5. TIPC +4. TIPC ------- tipc_rmem diff --git a/net/Kconfig b/net/Kconfig index bdea8aef7983..e38477393551 100644 --- a/net/Kconfig +++ b/net/Kconfig @@ -261,7 +261,6 @@ source "net/bridge/Kconfig" source "net/dsa/Kconfig" source "net/8021q/Kconfig" source "net/llc/Kconfig" -source "net/appletalk/Kconfig" source "net/x25/Kconfig" source "net/lapb/Kconfig" source "net/phonet/Kconfig" diff --git a/net/appletalk/Kconfig b/net/appletalk/Kconfig deleted file mode 100644 index 041141abf925..000000000000 --- a/net/appletalk/Kconfig +++ /dev/null @@ -1,30 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0-only -# -# Appletalk configuration -# -config ATALK - tristate "Appletalk protocol support" - select LLC - help - AppleTalk is the protocol that Apple computers can use to communicate - on a network. If your Linux box is connected to such a network and you - wish to connect to it, say Y. You will need to use the netatalk package - so that your Linux box can act as a print and file server for Macs as - well as access AppleTalk printers. Check out - on the WWW for details. - EtherTalk is the name used for AppleTalk over Ethernet and the - cheaper and slower LocalTalk is AppleTalk over a proprietary Apple - network using serial links. EtherTalk and LocalTalk are fully - supported by Linux. - - General information about how to connect Linux, Windows machines and - Macs is on the WWW at . The - NET3-4-HOWTO, available from - , contains valuable - information as well. - - To compile this driver as a module, choose M here: the module will be - called appletalk. You almost certainly want to compile it as a - module so you can restart your AppleTalk stack without rebooting - your machine. I hear that the GNU boycott of Apple is over, so - even politically correct people are allowed to say Y here. diff --git a/net/802/Makefile b/net/802/Makefile index 9503ef6b2e06..54784f3cae5a 100644 --- a/net/802/Makefile +++ b/net/802/Makefile @@ -6,7 +6,6 @@ obj-$(CONFIG_LLC) += psnap.o obj-$(CONFIG_NET_FC) += fc.o obj-$(CONFIG_FDDI) += fddi.o -obj-$(CONFIG_ATALK) += psnap.o obj-$(CONFIG_STP) += stp.o obj-$(CONFIG_GARP) += garp.o obj-$(CONFIG_MRP) += mrp.o diff --git a/net/Makefile b/net/Makefile index d2175fce0406..5b2dd7f07a85 100644 --- a/net/Makefile +++ b/net/Makefile @@ -25,7 +25,6 @@ obj-$(CONFIG_NET_KEY) += key/ obj-$(CONFIG_BRIDGE) += bridge/ obj-$(CONFIG_NET_DEVLINK) += devlink/ obj-y += dsa/ -obj-$(CONFIG_ATALK) += appletalk/ obj-$(CONFIG_X25) += x25/ obj-$(CONFIG_LAPB) += lapb/ obj-$(CONFIG_CAN) += can/ diff --git a/net/appletalk/Makefile b/net/appletalk/Makefile deleted file mode 100644 index 152312a15180..000000000000 --- a/net/appletalk/Makefile +++ /dev/null @@ -1,10 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0-only -# -# Makefile for the Linux AppleTalk layer. -# - -obj-$(CONFIG_ATALK) += appletalk.o - -appletalk-y := aarp.o ddp.o -appletalk-$(CONFIG_PROC_FS) += atalk_proc.o -appletalk-$(CONFIG_SYSCTL) += sysctl_net_atalk.o diff --git a/include/linux/atalk.h b/include/linux/atalk.h deleted file mode 100644 index ce7e6bfa9e2a..000000000000 --- a/include/linux/atalk.h +++ /dev/null @@ -1,182 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef __LINUX_ATALK_H__ -#define __LINUX_ATALK_H__ - - -#include -#include - -struct atalk_route { - struct net_device *dev; - struct atalk_addr target; - struct atalk_addr gateway; - int flags; - struct atalk_route *next; -}; - -/** - * struct atalk_iface - AppleTalk Interface - * @dev - Network device associated with this interface - * @address - Our address - * @status - What are we doing? - * @nets - Associated direct netrange - * @next - next element in the list of interfaces - */ -struct atalk_iface { - struct net_device *dev; - struct atalk_addr address; - int status; -#define ATIF_PROBE 1 /* Probing for an address */ -#define ATIF_PROBE_FAIL 2 /* Probe collided */ - struct atalk_netrange nets; - struct atalk_iface *next; - struct hlist_node hash_node; /* keyed on dev->ifindex */ -}; - -struct atalk_sock { - /* struct sock has to be the first member of atalk_sock */ - struct sock sk; - __be16 dest_net; - __be16 src_net; - unsigned char dest_node; - unsigned char src_node; - unsigned char dest_port; - unsigned char src_port; -}; - -static inline struct atalk_sock *at_sk(struct sock *sk) -{ - return (struct atalk_sock *)sk; -} - -struct ddpehdr { - __be16 deh_len_hops; /* lower 10 bits are length, next 4 - hops */ - __be16 deh_sum; - __be16 deh_dnet; - __be16 deh_snet; - __u8 deh_dnode; - __u8 deh_snode; - __u8 deh_dport; - __u8 deh_sport; - /* And netatalk apps expect to stick the type in themselves */ -}; - -static __inline__ struct ddpehdr *ddp_hdr(struct sk_buff *skb) -{ - return (struct ddpehdr *)skb_transport_header(skb); -} - -/* AppleTalk AARP headers */ -struct elapaarp { - __be16 hw_type; -#define AARP_HW_TYPE_ETHERNET 1 -#define AARP_HW_TYPE_TOKENRING 2 - __be16 pa_type; - __u8 hw_len; - __u8 pa_len; -#define AARP_PA_ALEN 4 - __be16 function; -#define AARP_REQUEST 1 -#define AARP_REPLY 2 -#define AARP_PROBE 3 - __u8 hw_src[ETH_ALEN]; - __u8 pa_src_zero; - __be16 pa_src_net; - __u8 pa_src_node; - __u8 hw_dst[ETH_ALEN]; - __u8 pa_dst_zero; - __be16 pa_dst_net; - __u8 pa_dst_node; -} __attribute__ ((packed)); - -static __inline__ struct elapaarp *aarp_hdr(struct sk_buff *skb) -{ - return (struct elapaarp *)skb_transport_header(skb); -} - -/* Not specified - how long till we drop a resolved entry */ -#define AARP_EXPIRY_TIME (5 * 60 * HZ) -/* Size of hash table */ -#define AARP_HASH_SIZE 16 -/* Fast retransmission timer when resolving */ -#define AARP_TICK_TIME (HZ / 5) -/* Send 10 requests then give up (2 seconds) */ -#define AARP_RETRANSMIT_LIMIT 10 -/* - * Some value bigger than total retransmit time + a bit for last reply to - * appear and to stop continual requests - */ -#define AARP_RESOLVE_TIME (10 * HZ) - -extern struct datalink_proto *ddp_dl, *aarp_dl; -extern int aarp_proto_init(void); - -/* Inter module exports */ - -/* Give a device find its atif control structure */ -extern struct atalk_iface *atalk_find_dev(struct net_device *dev); - -extern struct atalk_addr *atalk_find_dev_addr(struct net_device *dev); -extern struct net_device *atrtr_get_dev(struct atalk_addr *sa); -extern int aarp_send_ddp(struct net_device *dev, - struct sk_buff *skb, - struct atalk_addr *sa, void *hwaddr); -extern void aarp_device_down(struct net_device *dev); -extern void aarp_probe_network(struct atalk_iface *atif); -extern int aarp_proxy_probe_network(struct atalk_iface *atif, - struct atalk_addr *sa); -extern void aarp_proxy_remove(struct net_device *dev, - struct atalk_addr *sa); - -extern void aarp_cleanup_module(void); - -extern struct hlist_head atalk_sockets; -extern rwlock_t atalk_sockets_lock; - -extern struct atalk_route *atalk_routes; -extern rwlock_t atalk_routes_lock; - -extern struct atalk_iface *atalk_interfaces; -extern rwlock_t atalk_interfaces_lock; - -extern struct atalk_route atrtr_default; - -struct aarp_iter_state { - int bucket; - struct aarp_entry **table; -}; - -extern const struct seq_operations aarp_seq_ops; - -extern int sysctl_aarp_expiry_time; -extern int sysctl_aarp_tick_time; -extern int sysctl_aarp_retransmit_limit; -extern int sysctl_aarp_resolve_time; - -#ifdef CONFIG_SYSCTL -extern int atalk_register_sysctl(void); -extern void atalk_unregister_sysctl(void); -#else -static inline int atalk_register_sysctl(void) -{ - return 0; -} -static inline void atalk_unregister_sysctl(void) -{ -} -#endif - -#ifdef CONFIG_PROC_FS -extern int atalk_proc_init(void); -extern void atalk_proc_exit(void); -#else -static inline int atalk_proc_init(void) -{ - return 0; -} -static inline void atalk_proc_exit(void) -{ -} -#endif /* CONFIG_PROC_FS */ - -#endif /* __LINUX_ATALK_H__ */ diff --git a/net/appletalk/aarp.c b/net/appletalk/aarp.c deleted file mode 100644 index 078fb7a6efa5..000000000000 --- a/net/appletalk/aarp.c +++ /dev/null @@ -1,1041 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - * AARP: An implementation of the AppleTalk AARP protocol for - * Ethernet 'ELAP'. - * - * Alan Cox - * - * This doesn't fit cleanly with the IP arp. Potentially we can use - * the generic neighbour discovery code to clean this up. - * - * FIXME: - * We ought to handle the retransmits with a single list and a - * separate fast timer for when it is needed. - * Use neighbour discovery code. - * Token Ring Support. - * - * References: - * Inside AppleTalk (2nd Ed). - * Fixes: - * Jaume Grau - flush caches on AARP_PROBE - * Rob Newberry - Added proxy AARP and AARP proc fs, - * moved probing from DDP module. - * Arnaldo C. Melo - don't mangle rx packets - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -int sysctl_aarp_expiry_time = AARP_EXPIRY_TIME; -int sysctl_aarp_tick_time = AARP_TICK_TIME; -int sysctl_aarp_retransmit_limit = AARP_RETRANSMIT_LIMIT; -int sysctl_aarp_resolve_time = AARP_RESOLVE_TIME; - -/* Lists of aarp entries */ -/** - * struct aarp_entry - AARP entry - * @refcnt: Reference count - * @last_sent: Last time we xmitted the aarp request - * @packet_queue: Queue of frames wait for resolution - * @status: Used for proxy AARP - * @expires_at: Entry expiry time - * @target_addr: DDP Address - * @dev: Device to use - * @hwaddr: Physical i/f address of target/router - * @xmit_count: When this hits 10 we give up - * @next: Next entry in chain - */ -struct aarp_entry { - refcount_t refcnt; - /* These first two are only used for unresolved entries */ - unsigned long last_sent; - struct sk_buff_head packet_queue; - int status; - unsigned long expires_at; - struct atalk_addr target_addr; - struct net_device *dev; - char hwaddr[ETH_ALEN]; - unsigned short xmit_count; - struct aarp_entry *next; -}; - -/* Hashed list of resolved, unresolved and proxy entries */ -static struct aarp_entry *resolved[AARP_HASH_SIZE]; -static struct aarp_entry *unresolved[AARP_HASH_SIZE]; -static struct aarp_entry *proxies[AARP_HASH_SIZE]; -static int unresolved_count; - -/* One lock protects it all. */ -static DEFINE_RWLOCK(aarp_lock); - -/* Used to walk the list and purge/kick entries. */ -static struct timer_list aarp_timer; - -static inline void aarp_entry_get(struct aarp_entry *a) -{ - refcount_inc(&a->refcnt); -} - -static inline void aarp_entry_put(struct aarp_entry *a) -{ - if (refcount_dec_and_test(&a->refcnt)) - kfree(a); -} - -/* - * Delete an aarp queue - * - * Must run under aarp_lock. - */ -static void __aarp_expire(struct aarp_entry *a) -{ - skb_queue_purge(&a->packet_queue); - aarp_entry_put(a); -} - -/* - * Send an aarp queue entry request - * - * Must run under aarp_lock. - */ -static void __aarp_send_query(struct aarp_entry *a) -{ - static unsigned char aarp_eth_multicast[ETH_ALEN] = - { 0x09, 0x00, 0x07, 0xFF, 0xFF, 0xFF }; - struct net_device *dev = a->dev; - struct elapaarp *eah; - int len = dev->hard_header_len + sizeof(*eah) + aarp_dl->header_length; - struct sk_buff *skb = alloc_skb(len, GFP_ATOMIC); - struct atalk_addr *sat = atalk_find_dev_addr(dev); - - if (!skb) - return; - - if (!sat) { - kfree_skb(skb); - return; - } - - /* Set up the buffer */ - skb_reserve(skb, dev->hard_header_len + aarp_dl->header_length); - skb_reset_network_header(skb); - skb_reset_transport_header(skb); - skb_put(skb, sizeof(*eah)); - skb->protocol = htons(ETH_P_ATALK); - skb->dev = dev; - eah = aarp_hdr(skb); - - /* Set up the ARP */ - eah->hw_type = htons(AARP_HW_TYPE_ETHERNET); - eah->pa_type = htons(ETH_P_ATALK); - eah->hw_len = ETH_ALEN; - eah->pa_len = AARP_PA_ALEN; - eah->function = htons(AARP_REQUEST); - - ether_addr_copy(eah->hw_src, dev->dev_addr); - - eah->pa_src_zero = 0; - eah->pa_src_net = sat->s_net; - eah->pa_src_node = sat->s_node; - - eth_zero_addr(eah->hw_dst); - - eah->pa_dst_zero = 0; - eah->pa_dst_net = a->target_addr.s_net; - eah->pa_dst_node = a->target_addr.s_node; - - /* Send it */ - aarp_dl->request(aarp_dl, skb, aarp_eth_multicast); - /* Update the sending count */ - a->xmit_count++; - a->last_sent = jiffies; -} - -/* This runs under aarp_lock and in softint context, so only atomic memory - * allocations can be used. */ -static void aarp_send_reply(struct net_device *dev, struct atalk_addr *us, - struct atalk_addr *them, unsigned char *sha) -{ - struct elapaarp *eah; - int len = dev->hard_header_len + sizeof(*eah) + aarp_dl->header_length; - struct sk_buff *skb = alloc_skb(len, GFP_ATOMIC); - - if (!skb) - return; - - /* Set up the buffer */ - skb_reserve(skb, dev->hard_header_len + aarp_dl->header_length); - skb_reset_network_header(skb); - skb_reset_transport_header(skb); - skb_put(skb, sizeof(*eah)); - skb->protocol = htons(ETH_P_ATALK); - skb->dev = dev; - eah = aarp_hdr(skb); - - /* Set up the ARP */ - eah->hw_type = htons(AARP_HW_TYPE_ETHERNET); - eah->pa_type = htons(ETH_P_ATALK); - eah->hw_len = ETH_ALEN; - eah->pa_len = AARP_PA_ALEN; - eah->function = htons(AARP_REPLY); - - ether_addr_copy(eah->hw_src, dev->dev_addr); - - eah->pa_src_zero = 0; - eah->pa_src_net = us->s_net; - eah->pa_src_node = us->s_node; - - if (!sha) - eth_zero_addr(eah->hw_dst); - else - ether_addr_copy(eah->hw_dst, sha); - - eah->pa_dst_zero = 0; - eah->pa_dst_net = them->s_net; - eah->pa_dst_node = them->s_node; - - /* Send it */ - aarp_dl->request(aarp_dl, skb, sha); -} - -/* - * Send probe frames. Called from aarp_probe_network and - * aarp_proxy_probe_network. - */ - -static void aarp_send_probe(struct net_device *dev, struct atalk_addr *us) -{ - struct elapaarp *eah; - int len = dev->hard_header_len + sizeof(*eah) + aarp_dl->header_length; - struct sk_buff *skb = alloc_skb(len, GFP_ATOMIC); - static unsigned char aarp_eth_multicast[ETH_ALEN] = - { 0x09, 0x00, 0x07, 0xFF, 0xFF, 0xFF }; - - if (!skb) - return; - - /* Set up the buffer */ - skb_reserve(skb, dev->hard_header_len + aarp_dl->header_length); - skb_reset_network_header(skb); - skb_reset_transport_header(skb); - skb_put(skb, sizeof(*eah)); - skb->protocol = htons(ETH_P_ATALK); - skb->dev = dev; - eah = aarp_hdr(skb); - - /* Set up the ARP */ - eah->hw_type = htons(AARP_HW_TYPE_ETHERNET); - eah->pa_type = htons(ETH_P_ATALK); - eah->hw_len = ETH_ALEN; - eah->pa_len = AARP_PA_ALEN; - eah->function = htons(AARP_PROBE); - - ether_addr_copy(eah->hw_src, dev->dev_addr); - - eah->pa_src_zero = 0; - eah->pa_src_net = us->s_net; - eah->pa_src_node = us->s_node; - - eth_zero_addr(eah->hw_dst); - - eah->pa_dst_zero = 0; - eah->pa_dst_net = us->s_net; - eah->pa_dst_node = us->s_node; - - /* Send it */ - aarp_dl->request(aarp_dl, skb, aarp_eth_multicast); -} - -/* - * Handle an aarp timer expire - * - * Must run under the aarp_lock. - */ - -static void __aarp_expire_timer(struct aarp_entry **n) -{ - struct aarp_entry *t; - - while (*n) - /* Expired ? */ - if (time_after(jiffies, (*n)->expires_at)) { - t = *n; - *n = (*n)->next; - __aarp_expire(t); - } else - n = &((*n)->next); -} - -/* - * Kick all pending requests 5 times a second. - * - * Must run under the aarp_lock. - */ -static void __aarp_kick(struct aarp_entry **n) -{ - struct aarp_entry *t; - - while (*n) - /* Expired: if this will be the 11th tx, we delete instead. */ - if ((*n)->xmit_count >= sysctl_aarp_retransmit_limit) { - t = *n; - *n = (*n)->next; - __aarp_expire(t); - } else { - __aarp_send_query(*n); - n = &((*n)->next); - } -} - -/* - * A device has gone down. Take all entries referring to the device - * and remove them. - * - * Must run under the aarp_lock. - */ -static void __aarp_expire_device(struct aarp_entry **n, struct net_device *dev) -{ - struct aarp_entry *t; - - while (*n) - if ((*n)->dev == dev) { - t = *n; - *n = (*n)->next; - __aarp_expire(t); - } else - n = &((*n)->next); -} - -/* Handle the timer event */ -static void aarp_expire_timeout(struct timer_list *unused) -{ - int ct; - - write_lock_bh(&aarp_lock); - - for (ct = 0; ct < AARP_HASH_SIZE; ct++) { - __aarp_expire_timer(&resolved[ct]); - __aarp_kick(&unresolved[ct]); - __aarp_expire_timer(&unresolved[ct]); - __aarp_expire_timer(&proxies[ct]); - } - - write_unlock_bh(&aarp_lock); - mod_timer(&aarp_timer, jiffies + - (unresolved_count ? sysctl_aarp_tick_time : - sysctl_aarp_expiry_time)); -} - -/* Network device notifier chain handler. */ -static int aarp_device_event(struct notifier_block *this, unsigned long event, - void *ptr) -{ - struct net_device *dev = netdev_notifier_info_to_dev(ptr); - int ct; - - if (!net_eq(dev_net(dev), &init_net)) - return NOTIFY_DONE; - - if (event == NETDEV_DOWN) { - write_lock_bh(&aarp_lock); - - for (ct = 0; ct < AARP_HASH_SIZE; ct++) { - __aarp_expire_device(&resolved[ct], dev); - __aarp_expire_device(&unresolved[ct], dev); - __aarp_expire_device(&proxies[ct], dev); - } - - write_unlock_bh(&aarp_lock); - } - return NOTIFY_DONE; -} - -/* Expire all entries in a hash chain */ -static void __aarp_expire_all(struct aarp_entry **n) -{ - struct aarp_entry *t; - - while (*n) { - t = *n; - *n = (*n)->next; - __aarp_expire(t); - } -} - -/* Cleanup all hash chains -- module unloading */ -static void aarp_purge(void) -{ - int ct; - - write_lock_bh(&aarp_lock); - for (ct = 0; ct < AARP_HASH_SIZE; ct++) { - __aarp_expire_all(&resolved[ct]); - __aarp_expire_all(&unresolved[ct]); - __aarp_expire_all(&proxies[ct]); - } - write_unlock_bh(&aarp_lock); -} - -/* - * Create a new aarp entry. This must use GFP_ATOMIC because it - * runs while holding spinlocks. - */ -static struct aarp_entry *aarp_alloc(void) -{ - struct aarp_entry *a = kzalloc_obj(*a, GFP_ATOMIC); - if (!a) - return NULL; - - refcount_set(&a->refcnt, 1); - skb_queue_head_init(&a->packet_queue); - return a; -} - -/* - * Find an entry. We might return an expired but not yet purged entry. We - * don't care as it will do no harm. - * - * This must run under the aarp_lock. - */ -static struct aarp_entry *__aarp_find_entry(struct aarp_entry *list, - struct net_device *dev, - struct atalk_addr *sat) -{ - while (list) { - if (list->target_addr.s_net == sat->s_net && - list->target_addr.s_node == sat->s_node && - list->dev == dev) - break; - list = list->next; - } - - return list; -} - -/* Called from the DDP code, and thus must be exported. */ -void aarp_proxy_remove(struct net_device *dev, struct atalk_addr *sa) -{ - int hash = sa->s_node % (AARP_HASH_SIZE - 1); - struct aarp_entry *a; - - write_lock_bh(&aarp_lock); - - a = __aarp_find_entry(proxies[hash], dev, sa); - if (a) - a->expires_at = jiffies - 1; - - write_unlock_bh(&aarp_lock); -} - -/* This must run under aarp_lock. */ -static struct atalk_addr *__aarp_proxy_find(struct net_device *dev, - struct atalk_addr *sa) -{ - int hash = sa->s_node % (AARP_HASH_SIZE - 1); - struct aarp_entry *a = __aarp_find_entry(proxies[hash], dev, sa); - - return a ? sa : NULL; -} - -void aarp_probe_network(struct atalk_iface *atif) -{ - unsigned int count; - - for (count = 0; count < AARP_RETRANSMIT_LIMIT; count++) { - aarp_send_probe(atif->dev, &atif->address); - - /* Defer 1/10th */ - msleep(100); - - if (atif->status & ATIF_PROBE_FAIL) - break; - } -} - -int aarp_proxy_probe_network(struct atalk_iface *atif, struct atalk_addr *sa) -{ - int hash, retval = -EPROTONOSUPPORT; - struct aarp_entry *entry; - unsigned int count; - - /* - * we don't currently support LocalTalk or PPP for proxy AARP; - * if someone wants to try and add it, have fun - */ - if (atif->dev->type == ARPHRD_LOCALTLK || - atif->dev->type == ARPHRD_PPP) - goto out; - - /* - * create a new AARP entry with the flags set to be published -- - * we need this one to hang around even if it's in use - */ - entry = aarp_alloc(); - retval = -ENOMEM; - if (!entry) - goto out; - - entry->expires_at = -1; - entry->status = ATIF_PROBE; - entry->target_addr.s_node = sa->s_node; - entry->target_addr.s_net = sa->s_net; - entry->dev = atif->dev; - - write_lock_bh(&aarp_lock); - aarp_entry_get(entry); - - hash = sa->s_node % (AARP_HASH_SIZE - 1); - entry->next = proxies[hash]; - proxies[hash] = entry; - - for (count = 0; count < AARP_RETRANSMIT_LIMIT; count++) { - aarp_send_probe(atif->dev, sa); - - /* Defer 1/10th */ - write_unlock_bh(&aarp_lock); - msleep(100); - write_lock_bh(&aarp_lock); - - if (entry->status & ATIF_PROBE_FAIL) - break; - } - - if (entry->status & ATIF_PROBE_FAIL) { - entry->expires_at = jiffies - 1; /* free the entry */ - retval = -EADDRINUSE; /* return network full */ - } else { /* clear the probing flag */ - entry->status &= ~ATIF_PROBE; - retval = 1; - } - - aarp_entry_put(entry); - write_unlock_bh(&aarp_lock); -out: - return retval; -} - -/* Send a DDP frame */ -int aarp_send_ddp(struct net_device *dev, struct sk_buff *skb, - struct atalk_addr *sa, void *hwaddr) -{ - static char ddp_eth_multicast[ETH_ALEN] = - { 0x09, 0x00, 0x07, 0xFF, 0xFF, 0xFF }; - int hash; - struct aarp_entry *a; - - skb_reset_network_header(skb); - - /* Check for LocalTalk first */ - if (dev->type == ARPHRD_LOCALTLK) { - struct atalk_addr *at = atalk_find_dev_addr(dev); - struct ddpehdr *ddp = (struct ddpehdr *)skb->data; - int ft = 2; - - if (!at) { - kfree_skb(skb); - return NET_XMIT_DROP; - } - - /* - * Compressible ? - * - * IFF: src_net == dest_net == device_net - * (zero matches anything) - */ - - if ((!ddp->deh_snet || at->s_net == ddp->deh_snet) && - (!ddp->deh_dnet || at->s_net == ddp->deh_dnet)) { - skb_pull(skb, sizeof(*ddp) - 4); - - /* - * The upper two remaining bytes are the port - * numbers we just happen to need. Now put the - * length in the lower two. - */ - *((__be16 *)skb->data) = htons(skb->len); - ft = 1; - } - /* - * Nice and easy. No AARP type protocols occur here so we can - * just shovel it out with a 3 byte LLAP header - */ - - skb_push(skb, 3); - skb->data[0] = sa->s_node; - skb->data[1] = at->s_node; - skb->data[2] = ft; - skb->dev = dev; - goto sendit; - } - - /* On a PPP link we neither compress nor aarp. */ - if (dev->type == ARPHRD_PPP) { - skb->protocol = htons(ETH_P_PPPTALK); - skb->dev = dev; - goto sendit; - } - - /* Non ELAP we cannot do. */ - if (dev->type != ARPHRD_ETHER) - goto free_it; - - skb->dev = dev; - skb->protocol = htons(ETH_P_ATALK); - hash = sa->s_node % (AARP_HASH_SIZE - 1); - - /* Do we have a resolved entry? */ - if (sa->s_node == ATADDR_BCAST) { - /* Send it */ - ddp_dl->request(ddp_dl, skb, ddp_eth_multicast); - goto sent; - } - - write_lock_bh(&aarp_lock); - a = __aarp_find_entry(resolved[hash], dev, sa); - - if (a) { /* Return 1 and fill in the address */ - a->expires_at = jiffies + (sysctl_aarp_expiry_time * 10); - ddp_dl->request(ddp_dl, skb, a->hwaddr); - write_unlock_bh(&aarp_lock); - goto sent; - } - - /* Do we have an unresolved entry: This is the less common path */ - a = __aarp_find_entry(unresolved[hash], dev, sa); - if (a) { /* Queue onto the unresolved queue */ - skb_queue_tail(&a->packet_queue, skb); - goto out_unlock; - } - - /* Allocate a new entry */ - a = aarp_alloc(); - if (!a) { - /* Whoops slipped... good job it's an unreliable protocol 8) */ - write_unlock_bh(&aarp_lock); - goto free_it; - } - - /* Set up the queue */ - skb_queue_tail(&a->packet_queue, skb); - a->expires_at = jiffies + sysctl_aarp_resolve_time; - a->dev = dev; - a->next = unresolved[hash]; - a->target_addr = *sa; - a->xmit_count = 0; - unresolved[hash] = a; - unresolved_count++; - - /* Send an initial request for the address */ - __aarp_send_query(a); - - /* - * Switch to fast timer if needed (That is if this is the first - * unresolved entry to get added) - */ - - if (unresolved_count == 1) - mod_timer(&aarp_timer, jiffies + sysctl_aarp_tick_time); - - /* Now finally, it is safe to drop the lock. */ -out_unlock: - write_unlock_bh(&aarp_lock); - - /* Tell the ddp layer we have taken over for this frame. */ - goto sent; - -sendit: - if (skb->sk) - skb->priority = READ_ONCE(skb->sk->sk_priority); - if (dev_queue_xmit(skb)) - goto drop; -sent: - return NET_XMIT_SUCCESS; -free_it: - kfree_skb(skb); -drop: - return NET_XMIT_DROP; -} -EXPORT_SYMBOL(aarp_send_ddp); - -/* - * An entry in the aarp unresolved queue has become resolved. Send - * all the frames queued under it. - * - * Must run under aarp_lock. - */ -static void __aarp_resolved(struct aarp_entry **list, struct aarp_entry *a, - int hash) -{ - struct sk_buff *skb; - - while (*list) - if (*list == a) { - unresolved_count--; - *list = a->next; - - /* Move into the resolved list */ - a->next = resolved[hash]; - resolved[hash] = a; - - /* Kick frames off */ - while ((skb = skb_dequeue(&a->packet_queue)) != NULL) { - a->expires_at = jiffies + - sysctl_aarp_expiry_time * 10; - ddp_dl->request(ddp_dl, skb, a->hwaddr); - } - } else - list = &((*list)->next); -} - -/* - * This is called by the SNAP driver whenever we see an AARP SNAP - * frame. We currently only support Ethernet. - */ -static int aarp_rcv(struct sk_buff *skb, struct net_device *dev, - struct packet_type *pt, struct net_device *orig_dev) -{ - struct elapaarp *ea = aarp_hdr(skb); - int hash, ret = 0; - __u16 function; - struct aarp_entry *a; - struct atalk_addr sa, *ma, da; - struct atalk_iface *ifa; - - if (!net_eq(dev_net(dev), &init_net)) - goto out0; - - /* We only do Ethernet SNAP AARP. */ - if (dev->type != ARPHRD_ETHER) - goto out0; - - /* Frame size ok? */ - if (!skb_pull(skb, sizeof(*ea))) - goto out0; - - function = ntohs(ea->function); - - /* Sanity check fields. */ - if (function < AARP_REQUEST || function > AARP_PROBE || - ea->hw_len != ETH_ALEN || ea->pa_len != AARP_PA_ALEN || - ea->pa_src_zero || ea->pa_dst_zero) - goto out0; - - /* Looks good. */ - hash = ea->pa_src_node % (AARP_HASH_SIZE - 1); - - /* Build an address. */ - sa.s_node = ea->pa_src_node; - sa.s_net = ea->pa_src_net; - - /* Process the packet. Check for replies of me. */ - ifa = atalk_find_dev(dev); - if (!ifa) - goto out1; - - if (ifa->status & ATIF_PROBE && - ifa->address.s_node == ea->pa_dst_node && - ifa->address.s_net == ea->pa_dst_net) { - ifa->status |= ATIF_PROBE_FAIL; /* Fail the probe (in use) */ - goto out1; - } - - /* Check for replies of proxy AARP entries */ - da.s_node = ea->pa_dst_node; - da.s_net = ea->pa_dst_net; - - write_lock_bh(&aarp_lock); - a = __aarp_find_entry(proxies[hash], dev, &da); - - if (a && a->status & ATIF_PROBE) { - a->status |= ATIF_PROBE_FAIL; - /* - * we do not respond to probe or request packets of - * this address while we are probing this address - */ - goto unlock; - } - - switch (function) { - case AARP_REPLY: - if (!unresolved_count) /* Speed up */ - break; - - /* Find the entry. */ - a = __aarp_find_entry(unresolved[hash], dev, &sa); - if (!a || dev != a->dev) - break; - - /* We can fill one in - this is good. */ - ether_addr_copy(a->hwaddr, ea->hw_src); - __aarp_resolved(&unresolved[hash], a, hash); - if (!unresolved_count) - mod_timer(&aarp_timer, - jiffies + sysctl_aarp_expiry_time); - break; - - case AARP_REQUEST: - case AARP_PROBE: - - /* - * If it is my address set ma to my address and reply. - * We can treat probe and request the same. Probe - * simply means we shouldn't cache the querying host, - * as in a probe they are proposing an address not - * using one. - * - * Support for proxy-AARP added. We check if the - * address is one of our proxies before we toss the - * packet out. - */ - - sa.s_node = ea->pa_dst_node; - sa.s_net = ea->pa_dst_net; - - /* See if we have a matching proxy. */ - ma = __aarp_proxy_find(dev, &sa); - if (!ma) - ma = &ifa->address; - else { /* We need to make a copy of the entry. */ - da.s_node = sa.s_node; - da.s_net = sa.s_net; - ma = &da; - } - - if (function == AARP_PROBE) { - /* - * A probe implies someone trying to get an - * address. So as a precaution flush any - * entries we have for this address. - */ - a = __aarp_find_entry(resolved[sa.s_node % - (AARP_HASH_SIZE - 1)], - skb->dev, &sa); - - /* - * Make it expire next tick - that avoids us - * getting into a probe/flush/learn/probe/ - * flush/learn cycle during probing of a slow - * to respond host addr. - */ - if (a) { - a->expires_at = jiffies - 1; - mod_timer(&aarp_timer, jiffies + - sysctl_aarp_tick_time); - } - } - - if (sa.s_node != ma->s_node) - break; - - if (sa.s_net && ma->s_net && sa.s_net != ma->s_net) - break; - - sa.s_node = ea->pa_src_node; - sa.s_net = ea->pa_src_net; - - /* aarp_my_address has found the address to use for us. - */ - aarp_send_reply(dev, ma, &sa, ea->hw_src); - break; - } - -unlock: - write_unlock_bh(&aarp_lock); -out1: - ret = 1; -out0: - kfree_skb(skb); - return ret; -} - -static struct notifier_block aarp_notifier = { - .notifier_call = aarp_device_event, -}; - -static unsigned char aarp_snap_id[] = { 0x00, 0x00, 0x00, 0x80, 0xF3 }; - -int __init aarp_proto_init(void) -{ - int rc; - - aarp_dl = register_snap_client(aarp_snap_id, aarp_rcv); - if (!aarp_dl) { - printk(KERN_CRIT "Unable to register AARP with SNAP.\n"); - return -ENOMEM; - } - timer_setup(&aarp_timer, aarp_expire_timeout, 0); - aarp_timer.expires = jiffies + sysctl_aarp_expiry_time; - add_timer(&aarp_timer); - rc = register_netdevice_notifier(&aarp_notifier); - if (rc) { - timer_delete_sync(&aarp_timer); - unregister_snap_client(aarp_dl); - } - return rc; -} - -/* Remove the AARP entries associated with a device. */ -void aarp_device_down(struct net_device *dev) -{ - int ct; - - write_lock_bh(&aarp_lock); - - for (ct = 0; ct < AARP_HASH_SIZE; ct++) { - __aarp_expire_device(&resolved[ct], dev); - __aarp_expire_device(&unresolved[ct], dev); - __aarp_expire_device(&proxies[ct], dev); - } - - write_unlock_bh(&aarp_lock); -} - -#ifdef CONFIG_PROC_FS -/* - * Get the aarp entry that is in the chain described - * by the iterator. - * If pos is set then skip till that index. - * pos = 1 is the first entry - */ -static struct aarp_entry *iter_next(struct aarp_iter_state *iter, loff_t *pos) -{ - int ct = iter->bucket; - struct aarp_entry **table = iter->table; - loff_t off = 0; - struct aarp_entry *entry; - - rescan: - while (ct < AARP_HASH_SIZE) { - for (entry = table[ct]; entry; entry = entry->next) { - if (!pos || ++off == *pos) { - iter->table = table; - iter->bucket = ct; - return entry; - } - } - ++ct; - } - - if (table == resolved) { - ct = 0; - table = unresolved; - goto rescan; - } - if (table == unresolved) { - ct = 0; - table = proxies; - goto rescan; - } - return NULL; -} - -static void *aarp_seq_start(struct seq_file *seq, loff_t *pos) - __acquires(aarp_lock) -{ - struct aarp_iter_state *iter = seq->private; - - read_lock_bh(&aarp_lock); - iter->table = resolved; - iter->bucket = 0; - - return *pos ? iter_next(iter, pos) : SEQ_START_TOKEN; -} - -static void *aarp_seq_next(struct seq_file *seq, void *v, loff_t *pos) -{ - struct aarp_entry *entry = v; - struct aarp_iter_state *iter = seq->private; - - ++*pos; - - /* first line after header */ - if (v == SEQ_START_TOKEN) - entry = iter_next(iter, NULL); - - /* next entry in current bucket */ - else if (entry->next) - entry = entry->next; - - /* next bucket or table */ - else { - ++iter->bucket; - entry = iter_next(iter, NULL); - } - return entry; -} - -static void aarp_seq_stop(struct seq_file *seq, void *v) - __releases(aarp_lock) -{ - read_unlock_bh(&aarp_lock); -} - -static const char *dt2str(unsigned long ticks) -{ - static char buf[32]; - - sprintf(buf, "%ld.%02ld", ticks / HZ, ((ticks % HZ) * 100) / HZ); - - return buf; -} - -static int aarp_seq_show(struct seq_file *seq, void *v) -{ - struct aarp_iter_state *iter = seq->private; - struct aarp_entry *entry = v; - unsigned long now = jiffies; - - if (v == SEQ_START_TOKEN) - seq_puts(seq, - "Address Interface Hardware Address" - " Expires LastSend Retry Status\n"); - else { - seq_printf(seq, "%04X:%02X %-12s", - ntohs(entry->target_addr.s_net), - (unsigned int) entry->target_addr.s_node, - entry->dev ? entry->dev->name : "????"); - seq_printf(seq, "%pM", entry->hwaddr); - seq_printf(seq, " %8s", - dt2str((long)entry->expires_at - (long)now)); - if (iter->table == unresolved) - seq_printf(seq, " %8s %6hu", - dt2str(now - entry->last_sent), - entry->xmit_count); - else - seq_puts(seq, " "); - seq_printf(seq, " %s\n", - (iter->table == resolved) ? "resolved" - : (iter->table == unresolved) ? "unresolved" - : (iter->table == proxies) ? "proxies" - : "unknown"); - } - return 0; -} - -const struct seq_operations aarp_seq_ops = { - .start = aarp_seq_start, - .next = aarp_seq_next, - .stop = aarp_seq_stop, - .show = aarp_seq_show, -}; -#endif - -/* General module cleanup. Called from cleanup_module() in ddp.c. */ -void aarp_cleanup_module(void) -{ - timer_delete_sync(&aarp_timer); - unregister_netdevice_notifier(&aarp_notifier); - unregister_snap_client(aarp_dl); - aarp_purge(); -} diff --git a/net/appletalk/atalk_proc.c b/net/appletalk/atalk_proc.c deleted file mode 100644 index 01787fb6a7bc..000000000000 --- a/net/appletalk/atalk_proc.c +++ /dev/null @@ -1,242 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * atalk_proc.c - proc support for Appletalk - * - * Copyright(c) Arnaldo Carvalho de Melo - */ - -#include -#include -#include -#include -#include -#include -#include - - -static __inline__ struct atalk_iface *atalk_get_interface_idx(loff_t pos) -{ - struct atalk_iface *i; - - for (i = atalk_interfaces; pos && i; i = i->next) - --pos; - - return i; -} - -static void *atalk_seq_interface_start(struct seq_file *seq, loff_t *pos) - __acquires(atalk_interfaces_lock) -{ - loff_t l = *pos; - - read_lock_bh(&atalk_interfaces_lock); - return l ? atalk_get_interface_idx(--l) : SEQ_START_TOKEN; -} - -static void *atalk_seq_interface_next(struct seq_file *seq, void *v, loff_t *pos) -{ - struct atalk_iface *i; - - ++*pos; - if (v == SEQ_START_TOKEN) { - i = NULL; - if (atalk_interfaces) - i = atalk_interfaces; - goto out; - } - i = v; - i = i->next; -out: - return i; -} - -static void atalk_seq_interface_stop(struct seq_file *seq, void *v) - __releases(atalk_interfaces_lock) -{ - read_unlock_bh(&atalk_interfaces_lock); -} - -static int atalk_seq_interface_show(struct seq_file *seq, void *v) -{ - struct atalk_iface *iface; - - if (v == SEQ_START_TOKEN) { - seq_puts(seq, "Interface Address Networks " - "Status\n"); - goto out; - } - - iface = v; - seq_printf(seq, "%-16s %04X:%02X %04X-%04X %d\n", - iface->dev->name, ntohs(iface->address.s_net), - iface->address.s_node, ntohs(iface->nets.nr_firstnet), - ntohs(iface->nets.nr_lastnet), iface->status); -out: - return 0; -} - -static __inline__ struct atalk_route *atalk_get_route_idx(loff_t pos) -{ - struct atalk_route *r; - - for (r = atalk_routes; pos && r; r = r->next) - --pos; - - return r; -} - -static void *atalk_seq_route_start(struct seq_file *seq, loff_t *pos) - __acquires(atalk_routes_lock) -{ - loff_t l = *pos; - - read_lock_bh(&atalk_routes_lock); - return l ? atalk_get_route_idx(--l) : SEQ_START_TOKEN; -} - -static void *atalk_seq_route_next(struct seq_file *seq, void *v, loff_t *pos) -{ - struct atalk_route *r; - - ++*pos; - if (v == SEQ_START_TOKEN) { - r = NULL; - if (atalk_routes) - r = atalk_routes; - goto out; - } - r = v; - r = r->next; -out: - return r; -} - -static void atalk_seq_route_stop(struct seq_file *seq, void *v) - __releases(atalk_routes_lock) -{ - read_unlock_bh(&atalk_routes_lock); -} - -static int atalk_seq_route_show(struct seq_file *seq, void *v) -{ - struct atalk_route *rt; - - if (v == SEQ_START_TOKEN) { - seq_puts(seq, "Target Router Flags Dev\n"); - goto out; - } - - if (atrtr_default.dev) { - rt = &atrtr_default; - seq_printf(seq, "Default %04X:%02X %-4d %s\n", - ntohs(rt->gateway.s_net), rt->gateway.s_node, - rt->flags, rt->dev->name); - } - - rt = v; - seq_printf(seq, "%04X:%02X %04X:%02X %-4d %s\n", - ntohs(rt->target.s_net), rt->target.s_node, - ntohs(rt->gateway.s_net), rt->gateway.s_node, - rt->flags, rt->dev->name); -out: - return 0; -} - -static void *atalk_seq_socket_start(struct seq_file *seq, loff_t *pos) - __acquires(atalk_sockets_lock) -{ - read_lock_bh(&atalk_sockets_lock); - return seq_hlist_start_head(&atalk_sockets, *pos); -} - -static void *atalk_seq_socket_next(struct seq_file *seq, void *v, loff_t *pos) -{ - return seq_hlist_next(v, &atalk_sockets, pos); -} - -static void atalk_seq_socket_stop(struct seq_file *seq, void *v) - __releases(atalk_sockets_lock) -{ - read_unlock_bh(&atalk_sockets_lock); -} - -static int atalk_seq_socket_show(struct seq_file *seq, void *v) -{ - struct sock *s; - struct atalk_sock *at; - - if (v == SEQ_START_TOKEN) { - seq_printf(seq, "Type Local_addr Remote_addr Tx_queue " - "Rx_queue St UID\n"); - goto out; - } - - s = sk_entry(v); - at = at_sk(s); - - seq_printf(seq, "%02X %04X:%02X:%02X %04X:%02X:%02X %08X:%08X " - "%02X %u\n", - s->sk_type, ntohs(at->src_net), at->src_node, at->src_port, - ntohs(at->dest_net), at->dest_node, at->dest_port, - sk_wmem_alloc_get(s), - sk_rmem_alloc_get(s), - s->sk_state, - from_kuid_munged(seq_user_ns(seq), sk_uid(s))); -out: - return 0; -} - -static const struct seq_operations atalk_seq_interface_ops = { - .start = atalk_seq_interface_start, - .next = atalk_seq_interface_next, - .stop = atalk_seq_interface_stop, - .show = atalk_seq_interface_show, -}; - -static const struct seq_operations atalk_seq_route_ops = { - .start = atalk_seq_route_start, - .next = atalk_seq_route_next, - .stop = atalk_seq_route_stop, - .show = atalk_seq_route_show, -}; - -static const struct seq_operations atalk_seq_socket_ops = { - .start = atalk_seq_socket_start, - .next = atalk_seq_socket_next, - .stop = atalk_seq_socket_stop, - .show = atalk_seq_socket_show, -}; - -int __init atalk_proc_init(void) -{ - if (!proc_mkdir("atalk", init_net.proc_net)) - return -ENOMEM; - - if (!proc_create_seq("atalk/interface", 0444, init_net.proc_net, - &atalk_seq_interface_ops)) - goto out; - - if (!proc_create_seq("atalk/route", 0444, init_net.proc_net, - &atalk_seq_route_ops)) - goto out; - - if (!proc_create_seq("atalk/socket", 0444, init_net.proc_net, - &atalk_seq_socket_ops)) - goto out; - - if (!proc_create_seq_private("atalk/arp", 0444, init_net.proc_net, - &aarp_seq_ops, - sizeof(struct aarp_iter_state), NULL)) - goto out; - - return 0; - -out: - remove_proc_subtree("atalk", init_net.proc_net); - return -ENOMEM; -} - -void atalk_proc_exit(void) -{ - remove_proc_subtree("atalk", init_net.proc_net); -} diff --git a/net/appletalk/ddp.c b/net/appletalk/ddp.c deleted file mode 100644 index afb86ce6e644..000000000000 --- a/net/appletalk/ddp.c +++ /dev/null @@ -1,2055 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - * DDP: An implementation of the AppleTalk DDP protocol for - * Ethernet 'ELAP'. - * - * Alan Cox - * - * With more than a little assistance from - * - * Wesley Craig - * - * Fixes: - * Neil Horman : Added missing device ioctls - * Michael Callahan : Made routing work - * Wesley Craig : Fix probing to listen to a - * passed node id. - * Alan Cox : Added send/recvmsg support - * Alan Cox : Moved at. to protinfo in - * socket. - * Alan Cox : Added firewall hooks. - * Alan Cox : Supports new ARPHRD_LOOPBACK - * Christer Weinigel : Routing and /proc fixes. - * Bradford Johnson : LocalTalk. - * Tom Dyas : Module support. - * Alan Cox : Hooks for PPP (based on the - * LocalTalk hook). - * Alan Cox : Posix bits - * Alan Cox/Mike Freeman : Possible fix to NBP problems - * Bradford Johnson : IP-over-DDP (experimental) - * Jay Schulist : Moved IP-over-DDP to its own - * driver file. (ipddp.c & ipddp.h) - * Jay Schulist : Made work as module with - * AppleTalk drivers, cleaned it. - * Rob Newberry : Added proxy AARP and AARP - * procfs, moved probing to AARP - * module. - * Adrian Sun/ - * Michael Zuelsdorff : fix for net.0 packets. don't - * allow illegal ether/tokentalk - * port assignment. we lose a - * valid localtalk port as a - * result. - * Arnaldo C. de Melo : Cleanup, in preparation for - * shared skb support 8) - * Arnaldo C. de Melo : Move proc stuff to atalk_proc.c, - * use seq_file - */ - -#include -#include -#include -#include /* For TIOCOUTQ/INQ */ -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -struct datalink_proto *ddp_dl, *aarp_dl; -static const struct proto_ops atalk_dgram_ops; - -/**************************************************************************\ -* * -* Handlers for the socket list. * -* * -\**************************************************************************/ - -HLIST_HEAD(atalk_sockets); -DEFINE_RWLOCK(atalk_sockets_lock); - -static inline void __atalk_insert_socket(struct sock *sk) -{ - sk_add_node(sk, &atalk_sockets); -} - -static inline void atalk_remove_socket(struct sock *sk) -{ - write_lock_bh(&atalk_sockets_lock); - sk_del_node_init(sk); - write_unlock_bh(&atalk_sockets_lock); -} - -static struct sock *atalk_search_socket(struct sockaddr_at *to, - struct atalk_iface *atif) -{ - struct sock *def_socket = NULL; - struct sock *s; - - read_lock_bh(&atalk_sockets_lock); - sk_for_each(s, &atalk_sockets) { - struct atalk_sock *at = at_sk(s); - - if (to->sat_port != at->src_port) - continue; - - if (to->sat_addr.s_net == ATADDR_ANYNET && - to->sat_addr.s_node == ATADDR_BCAST) { - if (atif->address.s_node == at->src_node && - atif->address.s_net == at->src_net) { - /* This socket's address matches the address of the interface - * that received the packet -- use it - */ - goto found; - } - - /* Continue searching for a socket matching the interface address, - * but use this socket by default if no other one is found - */ - def_socket = s; - } - - if (to->sat_addr.s_net == at->src_net && - (to->sat_addr.s_node == at->src_node || - to->sat_addr.s_node == ATADDR_BCAST || - to->sat_addr.s_node == ATADDR_ANYNODE)) - goto found; - - /* XXXX.0 -- we got a request for this router. make sure - * that the node is appropriately set. */ - if (to->sat_addr.s_node == ATADDR_ANYNODE && - to->sat_addr.s_net != ATADDR_ANYNET && - atif->address.s_node == at->src_node) { - to->sat_addr.s_node = atif->address.s_node; - goto found; - } - } - s = def_socket; -found: - read_unlock_bh(&atalk_sockets_lock); - return s; -} - -/** - * atalk_find_or_insert_socket - Try to find a socket matching ADDR - * @sk: socket to insert in the list if it is not there already - * @sat: address to search for - * - * Try to find a socket matching ADDR in the socket list, if found then return - * it. If not, insert SK into the socket list. - * - * This entire operation must execute atomically. - */ -static struct sock *atalk_find_or_insert_socket(struct sock *sk, - struct sockaddr_at *sat) -{ - struct sock *s; - struct atalk_sock *at; - - write_lock_bh(&atalk_sockets_lock); - sk_for_each(s, &atalk_sockets) { - at = at_sk(s); - - if (at->src_net == sat->sat_addr.s_net && - at->src_node == sat->sat_addr.s_node && - at->src_port == sat->sat_port) - goto found; - } - s = NULL; - __atalk_insert_socket(sk); /* Wheee, it's free, assign and insert. */ -found: - write_unlock_bh(&atalk_sockets_lock); - return s; -} - -static void atalk_destroy_timer(struct timer_list *t) -{ - struct sock *sk = timer_container_of(sk, t, sk_timer); - - if (sk_has_allocations(sk)) { - sk->sk_timer.expires = jiffies + SOCK_DESTROY_TIME; - add_timer(&sk->sk_timer); - } else - sock_put(sk); -} - -static inline void atalk_destroy_socket(struct sock *sk) -{ - atalk_remove_socket(sk); - skb_queue_purge(&sk->sk_receive_queue); - - if (sk_has_allocations(sk)) { - timer_setup(&sk->sk_timer, atalk_destroy_timer, 0); - sk->sk_timer.expires = jiffies + SOCK_DESTROY_TIME; - add_timer(&sk->sk_timer); - } else - sock_put(sk); -} - -/**************************************************************************\ -* * -* Routing tables for the AppleTalk socket layer. * -* * -\**************************************************************************/ - -/* Anti-deadlock ordering is atalk_routes_lock --> iface_lock -DaveM */ -struct atalk_route *atalk_routes; -DEFINE_RWLOCK(atalk_routes_lock); - -struct atalk_iface *atalk_interfaces; -DEFINE_RWLOCK(atalk_interfaces_lock); - -/* Fast dev->iface lookup, keyed on ifindex. Shares atalk_interfaces_lock with - * the atalk_interfaces list, which remains the owner of the iface objects. - */ -#define ATALK_IFACE_HASH_BITS 8 -static DEFINE_HASHTABLE(atalk_iface_hash, ATALK_IFACE_HASH_BITS); - -/* Find the iface for @dev. Caller must hold atalk_interfaces_lock. */ -static struct atalk_iface *__atalk_find_dev(struct net_device *dev) -{ - struct atalk_iface *iface; - - hash_for_each_possible(atalk_iface_hash, iface, hash_node, dev->ifindex) - if (iface->dev == dev) - return iface; - return NULL; -} - -struct atalk_iface *atalk_find_dev(struct net_device *dev) -{ - struct atalk_iface *iface; - - read_lock_bh(&atalk_interfaces_lock); - iface = __atalk_find_dev(dev); - read_unlock_bh(&atalk_interfaces_lock); - return iface; -} - -/* For probing devices or in a routerless network */ -struct atalk_route atrtr_default; - -/* AppleTalk interface control */ -/* - * Drop a device. Doesn't drop any of its routes - that is the caller's - * problem. Called when we down the interface or delete the address. - */ -static void atif_drop_device(struct net_device *dev) -{ - struct atalk_iface **iface = &atalk_interfaces; - struct atalk_iface *tmp; - - write_lock_bh(&atalk_interfaces_lock); - while ((tmp = *iface) != NULL) { - if (tmp->dev == dev) { - *iface = tmp->next; - hash_del(&tmp->hash_node); - dev_put(dev); - kfree(tmp); - } else - iface = &tmp->next; - } - write_unlock_bh(&atalk_interfaces_lock); -} - -static struct atalk_iface *atif_add_device(struct net_device *dev, - struct atalk_addr *sa) -{ - struct atalk_iface *iface = kzalloc_obj(*iface); - - if (!iface) - goto out; - - dev_hold(dev); - iface->dev = dev; - iface->address = *sa; - iface->status = 0; - - write_lock_bh(&atalk_interfaces_lock); - iface->next = atalk_interfaces; - atalk_interfaces = iface; - hash_add(atalk_iface_hash, &iface->hash_node, dev->ifindex); - write_unlock_bh(&atalk_interfaces_lock); -out: - return iface; -} - -/* Perform phase 2 AARP probing on our tentative address */ -static int atif_probe_device(struct atalk_iface *atif) -{ - int netrange = ntohs(atif->nets.nr_lastnet) - - ntohs(atif->nets.nr_firstnet) + 1; - int probe_net = ntohs(atif->address.s_net); - int probe_node = atif->address.s_node; - int netct, nodect; - - /* Offset the network we start probing with */ - if (probe_net == ATADDR_ANYNET) { - probe_net = ntohs(atif->nets.nr_firstnet); - if (netrange) - probe_net += jiffies % netrange; - } - if (probe_node == ATADDR_ANYNODE) - probe_node = jiffies & 0xFF; - - /* Scan the networks */ - atif->status |= ATIF_PROBE; - for (netct = 0; netct <= netrange; netct++) { - /* Sweep the available nodes from a given start */ - atif->address.s_net = htons(probe_net); - for (nodect = 0; nodect < 256; nodect++) { - atif->address.s_node = (nodect + probe_node) & 0xFF; - if (atif->address.s_node > 0 && - atif->address.s_node < 254) { - /* Probe a proposed address */ - aarp_probe_network(atif); - - if (!(atif->status & ATIF_PROBE_FAIL)) { - atif->status &= ~ATIF_PROBE; - return 0; - } - } - atif->status &= ~ATIF_PROBE_FAIL; - } - probe_net++; - if (probe_net > ntohs(atif->nets.nr_lastnet)) - probe_net = ntohs(atif->nets.nr_firstnet); - } - atif->status &= ~ATIF_PROBE; - - return -EADDRINUSE; /* Network is full... */ -} - - -/* Perform AARP probing for a proxy address */ -static int atif_proxy_probe_device(struct atalk_iface *atif, - struct atalk_addr *proxy_addr) -{ - int netrange = ntohs(atif->nets.nr_lastnet) - - ntohs(atif->nets.nr_firstnet) + 1; - /* we probe the interface's network */ - int probe_net = ntohs(atif->address.s_net); - int probe_node = ATADDR_ANYNODE; /* we'll take anything */ - int netct, nodect; - - /* Offset the network we start probing with */ - if (probe_net == ATADDR_ANYNET) { - probe_net = ntohs(atif->nets.nr_firstnet); - if (netrange) - probe_net += jiffies % netrange; - } - - if (probe_node == ATADDR_ANYNODE) - probe_node = jiffies & 0xFF; - - /* Scan the networks */ - for (netct = 0; netct <= netrange; netct++) { - /* Sweep the available nodes from a given start */ - proxy_addr->s_net = htons(probe_net); - for (nodect = 0; nodect < 256; nodect++) { - proxy_addr->s_node = (nodect + probe_node) & 0xFF; - if (proxy_addr->s_node > 0 && - proxy_addr->s_node < 254) { - /* Tell AARP to probe a proposed address */ - int ret = aarp_proxy_probe_network(atif, - proxy_addr); - - if (ret != -EADDRINUSE) - return ret; - } - } - probe_net++; - if (probe_net > ntohs(atif->nets.nr_lastnet)) - probe_net = ntohs(atif->nets.nr_firstnet); - } - - return -EADDRINUSE; /* Network is full... */ -} - - -struct atalk_addr *atalk_find_dev_addr(struct net_device *dev) -{ - struct atalk_addr *addr = NULL; - struct atalk_iface *iface; - - read_lock_bh(&atalk_interfaces_lock); - iface = __atalk_find_dev(dev); - if (iface) - addr = &iface->address; - read_unlock_bh(&atalk_interfaces_lock); - return addr; -} - -static struct atalk_addr *atalk_find_primary(void) -{ - struct atalk_iface *fiface = NULL; - struct atalk_addr *retval; - struct atalk_iface *iface; - - /* - * Return a point-to-point interface only if - * there is no non-ptp interface available. - */ - read_lock_bh(&atalk_interfaces_lock); - for (iface = atalk_interfaces; iface; iface = iface->next) { - if (!fiface && !(iface->dev->flags & IFF_LOOPBACK)) - fiface = iface; - if (!(iface->dev->flags & (IFF_LOOPBACK | IFF_POINTOPOINT))) { - retval = &iface->address; - goto out; - } - } - - if (fiface) - retval = &fiface->address; - else if (atalk_interfaces) - retval = &atalk_interfaces->address; - else - retval = NULL; -out: - read_unlock_bh(&atalk_interfaces_lock); - return retval; -} - -/* - * Find a match for 'any network' - ie any of our interfaces with that - * node number will do just nicely. - */ -static struct atalk_iface *atalk_find_anynet(int node, struct net_device *dev) -{ - struct atalk_iface *iface; - - read_lock_bh(&atalk_interfaces_lock); - iface = __atalk_find_dev(dev); - if (!iface || iface->status & ATIF_PROBE) - goto out_err; - - if (node != ATADDR_BCAST && - iface->address.s_node != node && - node != ATADDR_ANYNODE) - goto out_err; -out: - read_unlock_bh(&atalk_interfaces_lock); - return iface; -out_err: - iface = NULL; - goto out; -} - -/* Find a match for a specific network:node pair */ -static struct atalk_iface *atalk_find_interface(__be16 net, int node) -{ - struct atalk_iface *iface; - - read_lock_bh(&atalk_interfaces_lock); - for (iface = atalk_interfaces; iface; iface = iface->next) { - if ((node == ATADDR_BCAST || - node == ATADDR_ANYNODE || - iface->address.s_node == node) && - iface->address.s_net == net && - !(iface->status & ATIF_PROBE)) - break; - - /* XXXX.0 -- net.0 returns the iface associated with net */ - if (node == ATADDR_ANYNODE && net != ATADDR_ANYNET && - ntohs(iface->nets.nr_firstnet) <= ntohs(net) && - ntohs(net) <= ntohs(iface->nets.nr_lastnet)) - break; - } - read_unlock_bh(&atalk_interfaces_lock); - return iface; -} - - -/* - * Find a route for an AppleTalk packet. This ought to get cached in - * the socket (later on...). We know about host routes and the fact - * that a route must be direct to broadcast. - */ -static struct atalk_route *atrtr_find(struct atalk_addr *target) -{ - /* - * we must search through all routes unless we find a - * host route, because some host routes might overlap - * network routes - */ - struct atalk_route *net_route = NULL; - struct atalk_route *r; - - read_lock_bh(&atalk_routes_lock); - for (r = atalk_routes; r; r = r->next) { - if (!(r->flags & RTF_UP)) - continue; - - if (r->target.s_net == target->s_net) { - if (r->flags & RTF_HOST) { - /* - * if this host route is for the target, - * the we're done - */ - if (r->target.s_node == target->s_node) - goto out; - } else - /* - * this route will work if there isn't a - * direct host route, so cache it - */ - net_route = r; - } - } - - /* - * if we found a network route but not a direct host - * route, then return it - */ - if (net_route) - r = net_route; - else if (atrtr_default.dev) - r = &atrtr_default; - else /* No route can be found */ - r = NULL; -out: - read_unlock_bh(&atalk_routes_lock); - return r; -} - - -/* - * Given an AppleTalk network, find the device to use. This can be - * a simple lookup. - */ -struct net_device *atrtr_get_dev(struct atalk_addr *sa) -{ - struct atalk_route *atr = atrtr_find(sa); - return atr ? atr->dev : NULL; -} - -/* Set up a default router */ -static void atrtr_set_default(struct net_device *dev) -{ - atrtr_default.dev = dev; - atrtr_default.flags = RTF_UP; - atrtr_default.gateway.s_net = htons(0); - atrtr_default.gateway.s_node = 0; -} - -/* - * Add a router. Basically make sure it looks valid and stuff the - * entry in the list. While it uses netranges we always set them to one - * entry to work like netatalk. - */ -static int atrtr_create(struct rtentry *r, struct net_device *devhint) -{ - struct sockaddr_at *ta = (struct sockaddr_at *)&r->rt_dst; - struct sockaddr_at *ga = (struct sockaddr_at *)&r->rt_gateway; - struct atalk_route *rt; - struct atalk_iface *iface, *riface; - int retval = -EINVAL; - - /* - * Fixme: Raise/Lower a routing change semaphore for these - * operations. - */ - - /* Validate the request */ - if (ta->sat_family != AF_APPLETALK || - (!devhint && ga->sat_family != AF_APPLETALK)) - goto out; - - /* Now walk the routing table and make our decisions */ - write_lock_bh(&atalk_routes_lock); - for (rt = atalk_routes; rt; rt = rt->next) { - if (r->rt_flags != rt->flags) - continue; - - if (ta->sat_addr.s_net == rt->target.s_net) { - if (!(rt->flags & RTF_HOST)) - break; - if (ta->sat_addr.s_node == rt->target.s_node) - break; - } - } - - if (!devhint) { - riface = NULL; - - read_lock_bh(&atalk_interfaces_lock); - for (iface = atalk_interfaces; iface; iface = iface->next) { - if (!riface && - ntohs(ga->sat_addr.s_net) >= - ntohs(iface->nets.nr_firstnet) && - ntohs(ga->sat_addr.s_net) <= - ntohs(iface->nets.nr_lastnet)) - riface = iface; - - if (ga->sat_addr.s_net == iface->address.s_net && - ga->sat_addr.s_node == iface->address.s_node) - riface = iface; - } - read_unlock_bh(&atalk_interfaces_lock); - - retval = -ENETUNREACH; - if (!riface) - goto out_unlock; - - devhint = riface->dev; - } - - if (!rt) { - rt = kzalloc_obj(*rt, GFP_ATOMIC); - - retval = -ENOBUFS; - if (!rt) - goto out_unlock; - - rt->next = atalk_routes; - atalk_routes = rt; - } - - /* Fill in the routing entry */ - rt->target = ta->sat_addr; - dev_put(rt->dev); /* Release old device */ - dev_hold(devhint); - rt->dev = devhint; - rt->flags = r->rt_flags; - rt->gateway = ga->sat_addr; - - retval = 0; -out_unlock: - write_unlock_bh(&atalk_routes_lock); -out: - return retval; -} - -/* Delete a route. Find it and discard it */ -static int atrtr_delete(struct atalk_addr *addr) -{ - struct atalk_route **r = &atalk_routes; - int retval = 0; - struct atalk_route *tmp; - - write_lock_bh(&atalk_routes_lock); - while ((tmp = *r) != NULL) { - if (tmp->target.s_net == addr->s_net && - (!(tmp->flags&RTF_GATEWAY) || - tmp->target.s_node == addr->s_node)) { - *r = tmp->next; - dev_put(tmp->dev); - kfree(tmp); - goto out; - } - r = &tmp->next; - } - retval = -ENOENT; -out: - write_unlock_bh(&atalk_routes_lock); - return retval; -} - -/* - * Called when a device is downed. Just throw away any routes - * via it. - */ -static void atrtr_device_down(struct net_device *dev) -{ - struct atalk_route **r = &atalk_routes; - struct atalk_route *tmp; - - write_lock_bh(&atalk_routes_lock); - while ((tmp = *r) != NULL) { - if (tmp->dev == dev) { - *r = tmp->next; - dev_put(dev); - kfree(tmp); - } else - r = &tmp->next; - } - write_unlock_bh(&atalk_routes_lock); - - if (atrtr_default.dev == dev) - atrtr_set_default(NULL); -} - -/* Actually down the interface */ -static inline void atalk_dev_down(struct net_device *dev) -{ - atrtr_device_down(dev); /* Remove all routes for the device */ - aarp_device_down(dev); /* Remove AARP entries for the device */ - atif_drop_device(dev); /* Remove the device */ -} - -/* - * A device event has occurred. Watch for devices going down and - * delete our use of them (iface and route). - */ -static int ddp_device_event(struct notifier_block *this, unsigned long event, - void *ptr) -{ - struct net_device *dev = netdev_notifier_info_to_dev(ptr); - - if (!net_eq(dev_net(dev), &init_net)) - return NOTIFY_DONE; - - if (event == NETDEV_DOWN) - /* Discard any use of this */ - atalk_dev_down(dev); - - return NOTIFY_DONE; -} - -/* ioctl calls. Shouldn't even need touching */ -/* Device configuration ioctl calls */ -static int atif_ioctl(int cmd, void __user *arg) -{ - static char aarp_mcast[6] = { 0x09, 0x00, 0x00, 0xFF, 0xFF, 0xFF }; - struct ifreq atreq; - struct atalk_netrange *nr; - struct sockaddr_at *sa; - struct net_device *dev; - struct atalk_iface *atif; - int ct; - int limit; - struct rtentry rtdef; - int add_route; - - if (get_user_ifreq(&atreq, NULL, arg)) - return -EFAULT; - - dev = __dev_get_by_name(&init_net, atreq.ifr_name); - if (!dev) - return -ENODEV; - - sa = (struct sockaddr_at *)&atreq.ifr_addr; - atif = atalk_find_dev(dev); - - switch (cmd) { - case SIOCSIFADDR: - if (!capable(CAP_NET_ADMIN)) - return -EPERM; - if (sa->sat_family != AF_APPLETALK) - return -EINVAL; - if (dev->type != ARPHRD_ETHER && - dev->type != ARPHRD_LOOPBACK && - dev->type != ARPHRD_LOCALTLK && - dev->type != ARPHRD_PPP) - return -EPROTONOSUPPORT; - - nr = (struct atalk_netrange *)&sa->sat_zero[0]; - add_route = 1; - - /* - * if this is a point-to-point iface, and we already - * have an iface for this AppleTalk address, then we - * should not add a route - */ - if ((dev->flags & IFF_POINTOPOINT) && - atalk_find_interface(sa->sat_addr.s_net, - sa->sat_addr.s_node)) { - printk(KERN_DEBUG "AppleTalk: point-to-point " - "interface added with " - "existing address\n"); - add_route = 0; - } - - /* - * Phase 1 is fine on LocalTalk but we don't do - * EtherTalk phase 1. Anyone wanting to add it, go ahead. - */ - if (dev->type == ARPHRD_ETHER && nr->nr_phase != 2) - return -EPROTONOSUPPORT; - if (sa->sat_addr.s_node == ATADDR_BCAST || - sa->sat_addr.s_node == 254) - return -EINVAL; - if (atif) { - /* Already setting address */ - if (atif->status & ATIF_PROBE) - return -EBUSY; - - atif->address.s_net = sa->sat_addr.s_net; - atif->address.s_node = sa->sat_addr.s_node; - atrtr_device_down(dev); /* Flush old routes */ - } else { - atif = atif_add_device(dev, &sa->sat_addr); - if (!atif) - return -ENOMEM; - } - atif->nets = *nr; - - /* - * Check if the chosen address is used. If so we - * error and atalkd will try another. - */ - - if (!(dev->flags & IFF_LOOPBACK) && - !(dev->flags & IFF_POINTOPOINT) && - atif_probe_device(atif) < 0) { - atif_drop_device(dev); - return -EADDRINUSE; - } - - /* Hey it worked - add the direct routes */ - sa = (struct sockaddr_at *)&rtdef.rt_gateway; - sa->sat_family = AF_APPLETALK; - sa->sat_addr.s_net = atif->address.s_net; - sa->sat_addr.s_node = atif->address.s_node; - sa = (struct sockaddr_at *)&rtdef.rt_dst; - rtdef.rt_flags = RTF_UP; - sa->sat_family = AF_APPLETALK; - sa->sat_addr.s_node = ATADDR_ANYNODE; - if (dev->flags & IFF_LOOPBACK || - dev->flags & IFF_POINTOPOINT) - rtdef.rt_flags |= RTF_HOST; - - /* Routerless initial state */ - if (nr->nr_firstnet == htons(0) && - nr->nr_lastnet == htons(0xFFFE)) { - sa->sat_addr.s_net = atif->address.s_net; - atrtr_create(&rtdef, dev); - atrtr_set_default(dev); - } else { - limit = ntohs(nr->nr_lastnet); - if (limit - ntohs(nr->nr_firstnet) > 4096) { - printk(KERN_WARNING "Too many routes/" - "iface.\n"); - return -EINVAL; - } - if (add_route) - for (ct = ntohs(nr->nr_firstnet); - ct <= limit; ct++) { - sa->sat_addr.s_net = htons(ct); - atrtr_create(&rtdef, dev); - } - } - dev_mc_add_global(dev, aarp_mcast); - return 0; - - case SIOCGIFADDR: - if (!atif) - return -EADDRNOTAVAIL; - - sa->sat_family = AF_APPLETALK; - sa->sat_addr = atif->address; - break; - - case SIOCGIFBRDADDR: - if (!atif) - return -EADDRNOTAVAIL; - - sa->sat_family = AF_APPLETALK; - sa->sat_addr.s_net = atif->address.s_net; - sa->sat_addr.s_node = ATADDR_BCAST; - break; - - case SIOCATALKDIFADDR: - case SIOCDIFADDR: - if (!capable(CAP_NET_ADMIN)) - return -EPERM; - if (sa->sat_family != AF_APPLETALK) - return -EINVAL; - atalk_dev_down(dev); - break; - - case SIOCSARP: - if (!capable(CAP_NET_ADMIN)) - return -EPERM; - if (sa->sat_family != AF_APPLETALK) - return -EINVAL; - /* - * for now, we only support proxy AARP on ELAP; - * we should be able to do it for LocalTalk, too. - */ - if (dev->type != ARPHRD_ETHER) - return -EPROTONOSUPPORT; - - /* - * atif points to the current interface on this network; - * we aren't concerned about its current status (at - * least for now), but it has all the settings about - * the network we're going to probe. Consequently, it - * must exist. - */ - if (!atif) - return -EADDRNOTAVAIL; - - nr = (struct atalk_netrange *)&(atif->nets); - /* - * Phase 1 is fine on Localtalk but we don't do - * Ethertalk phase 1. Anyone wanting to add it, go ahead. - */ - if (dev->type == ARPHRD_ETHER && nr->nr_phase != 2) - return -EPROTONOSUPPORT; - - if (sa->sat_addr.s_node == ATADDR_BCAST || - sa->sat_addr.s_node == 254) - return -EINVAL; - - /* - * Check if the chosen address is used. If so we - * error and ATCP will try another. - */ - if (atif_proxy_probe_device(atif, &(sa->sat_addr)) < 0) - return -EADDRINUSE; - - /* - * We now have an address on the local network, and - * the AARP code will defend it for us until we take it - * down. We don't set up any routes right now, because - * ATCP will install them manually via SIOCADDRT. - */ - break; - - case SIOCDARP: - if (!capable(CAP_NET_ADMIN)) - return -EPERM; - if (sa->sat_family != AF_APPLETALK) - return -EINVAL; - if (!atif) - return -EADDRNOTAVAIL; - - /* give to aarp module to remove proxy entry */ - aarp_proxy_remove(atif->dev, &(sa->sat_addr)); - return 0; - } - - return put_user_ifreq(&atreq, arg); -} - -static int atrtr_ioctl_addrt(struct rtentry *rt) -{ - struct net_device *dev = NULL; - - if (rt->rt_dev) { - char name[IFNAMSIZ]; - - if (copy_from_user(name, rt->rt_dev, IFNAMSIZ-1)) - return -EFAULT; - name[IFNAMSIZ-1] = '\0'; - - dev = __dev_get_by_name(&init_net, name); - if (!dev) - return -ENODEV; - } - return atrtr_create(rt, dev); -} - -/* Routing ioctl() calls */ -static int atrtr_ioctl(unsigned int cmd, void __user *arg) -{ - struct rtentry rt; - - if (copy_from_user(&rt, arg, sizeof(rt))) - return -EFAULT; - - switch (cmd) { - case SIOCDELRT: - if (rt.rt_dst.sa_family != AF_APPLETALK) - return -EINVAL; - return atrtr_delete(&((struct sockaddr_at *) - &rt.rt_dst)->sat_addr); - - case SIOCADDRT: - return atrtr_ioctl_addrt(&rt); - } - return -EINVAL; -} - -/**************************************************************************\ -* * -* Handling for system calls applied via the various interfaces to an * -* AppleTalk socket object. * -* * -\**************************************************************************/ - -/* - * Checksum: This is 'optional'. It's quite likely also a good - * candidate for assembler hackery 8) - */ -static unsigned long atalk_sum_partial(const unsigned char *data, - int len, unsigned long sum) -{ - /* This ought to be unwrapped neatly. I'll trust gcc for now */ - while (len--) { - sum += *data++; - sum = rol16(sum, 1); - } - return sum; -} - -/* Checksum skb data -- similar to skb_checksum */ -static unsigned long atalk_sum_skb(const struct sk_buff *skb, int offset, - int len, unsigned long sum) -{ - int start = skb_headlen(skb); - struct sk_buff *frag_iter; - int i, copy; - - /* checksum stuff in header space */ - if ((copy = start - offset) > 0) { - if (copy > len) - copy = len; - sum = atalk_sum_partial(skb->data + offset, copy, sum); - if ((len -= copy) == 0) - return sum; - - offset += copy; - } - - /* checksum stuff in frags */ - for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { - int end; - const skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; - WARN_ON(start > offset + len); - - end = start + skb_frag_size(frag); - if ((copy = end - offset) > 0) { - u8 *vaddr; - - if (copy > len) - copy = len; - vaddr = kmap_atomic(skb_frag_page(frag)); - sum = atalk_sum_partial(vaddr + skb_frag_off(frag) + - offset - start, copy, sum); - kunmap_atomic(vaddr); - - if (!(len -= copy)) - return sum; - offset += copy; - } - start = end; - } - - skb_walk_frags(skb, frag_iter) { - int end; - - WARN_ON(start > offset + len); - - end = start + frag_iter->len; - if ((copy = end - offset) > 0) { - if (copy > len) - copy = len; - sum = atalk_sum_skb(frag_iter, offset - start, - copy, sum); - if ((len -= copy) == 0) - return sum; - offset += copy; - } - start = end; - } - - BUG_ON(len > 0); - - return sum; -} - -static __be16 atalk_checksum(const struct sk_buff *skb, int len) -{ - unsigned long sum; - - /* skip header 4 bytes */ - sum = atalk_sum_skb(skb, 4, len-4, 0); - - /* Use 0xFFFF for 0. 0 itself means none */ - return sum ? htons((unsigned short)sum) : htons(0xFFFF); -} - -static struct proto ddp_proto = { - .name = "DDP", - .owner = THIS_MODULE, - .obj_size = sizeof(struct atalk_sock), -}; - -/* - * Create a socket. Initialise the socket, blank the addresses - * set the state. - */ -static int atalk_create(struct net *net, struct socket *sock, int protocol, - int kern) -{ - struct sock *sk; - int rc = -ESOCKTNOSUPPORT; - - if (!net_eq(net, &init_net)) - return -EAFNOSUPPORT; - - /* - * We permit SOCK_DGRAM and RAW is an extension. It is trivial to do - * and gives you the full ELAP frame. Should be handy for CAP 8) - */ - if (sock->type != SOCK_RAW && sock->type != SOCK_DGRAM) - goto out; - - rc = -EPERM; - if (sock->type == SOCK_RAW && !kern && !capable(CAP_NET_RAW)) - goto out; - - rc = -ENOMEM; - sk = sk_alloc(net, PF_APPLETALK, GFP_KERNEL, &ddp_proto, kern); - if (!sk) - goto out; - rc = 0; - sock->ops = &atalk_dgram_ops; - sock_init_data(sock, sk); - - /* Checksums on by default */ - sock_set_flag(sk, SOCK_ZAPPED); -out: - return rc; -} - -/* Free a socket. No work needed */ -static int atalk_release(struct socket *sock) -{ - struct sock *sk = sock->sk; - - if (sk) { - sock_hold(sk); - lock_sock(sk); - - sock_orphan(sk); - sock->sk = NULL; - atalk_destroy_socket(sk); - - release_sock(sk); - sock_put(sk); - } - return 0; -} - -/** - * atalk_pick_and_bind_port - Pick a source port when one is not given - * @sk: socket to insert into the tables - * @sat: address to search for - * - * Pick a source port when one is not given. If we can find a suitable free - * one, we insert the socket into the tables using it. - * - * This whole operation must be atomic. - */ -static int atalk_pick_and_bind_port(struct sock *sk, struct sockaddr_at *sat) -{ - int retval; - - write_lock_bh(&atalk_sockets_lock); - - for (sat->sat_port = ATPORT_RESERVED; - sat->sat_port < ATPORT_LAST; - sat->sat_port++) { - struct sock *s; - - sk_for_each(s, &atalk_sockets) { - struct atalk_sock *at = at_sk(s); - - if (at->src_net == sat->sat_addr.s_net && - at->src_node == sat->sat_addr.s_node && - at->src_port == sat->sat_port) - goto try_next_port; - } - - /* Wheee, it's free, assign and insert. */ - __atalk_insert_socket(sk); - at_sk(sk)->src_port = sat->sat_port; - retval = 0; - goto out; - -try_next_port:; - } - - retval = -EBUSY; -out: - write_unlock_bh(&atalk_sockets_lock); - return retval; -} - -static int atalk_autobind(struct sock *sk) -{ - struct atalk_sock *at = at_sk(sk); - struct sockaddr_at sat; - struct atalk_addr *ap = atalk_find_primary(); - int n = -EADDRNOTAVAIL; - - if (!ap || ap->s_net == htons(ATADDR_ANYNET)) - goto out; - - at->src_net = sat.sat_addr.s_net = ap->s_net; - at->src_node = sat.sat_addr.s_node = ap->s_node; - - n = atalk_pick_and_bind_port(sk, &sat); - if (!n) - sock_reset_flag(sk, SOCK_ZAPPED); -out: - return n; -} - -/* Set the address 'our end' of the connection */ -static int atalk_bind(struct socket *sock, struct sockaddr_unsized *uaddr, int addr_len) -{ - struct sockaddr_at *addr = (struct sockaddr_at *)uaddr; - struct sock *sk = sock->sk; - struct atalk_sock *at = at_sk(sk); - int err; - - if (!sock_flag(sk, SOCK_ZAPPED) || - addr_len != sizeof(struct sockaddr_at)) - return -EINVAL; - - if (addr->sat_family != AF_APPLETALK) - return -EAFNOSUPPORT; - - lock_sock(sk); - if (addr->sat_addr.s_net == htons(ATADDR_ANYNET)) { - struct atalk_addr *ap = atalk_find_primary(); - - err = -EADDRNOTAVAIL; - if (!ap) - goto out; - - at->src_net = addr->sat_addr.s_net = ap->s_net; - at->src_node = addr->sat_addr.s_node = ap->s_node; - } else { - err = -EADDRNOTAVAIL; - if (!atalk_find_interface(addr->sat_addr.s_net, - addr->sat_addr.s_node)) - goto out; - - at->src_net = addr->sat_addr.s_net; - at->src_node = addr->sat_addr.s_node; - } - - if (addr->sat_port == ATADDR_ANYPORT) { - err = atalk_pick_and_bind_port(sk, addr); - - if (err < 0) - goto out; - } else { - at->src_port = addr->sat_port; - - err = -EADDRINUSE; - if (atalk_find_or_insert_socket(sk, addr)) - goto out; - } - - sock_reset_flag(sk, SOCK_ZAPPED); - err = 0; -out: - release_sock(sk); - return err; -} - -/* Set the address we talk to */ -static int atalk_connect(struct socket *sock, struct sockaddr_unsized *uaddr, - int addr_len, int flags) -{ - struct sock *sk = sock->sk; - struct atalk_sock *at = at_sk(sk); - struct sockaddr_at *addr; - int err; - - sk->sk_state = TCP_CLOSE; - sock->state = SS_UNCONNECTED; - - if (addr_len != sizeof(*addr)) - return -EINVAL; - - addr = (struct sockaddr_at *)uaddr; - - if (addr->sat_family != AF_APPLETALK) - return -EAFNOSUPPORT; - - if (addr->sat_addr.s_node == ATADDR_BCAST && - !sock_flag(sk, SOCK_BROADCAST)) { -#if 1 - pr_warn("atalk_connect: %s is broken and did not set SO_BROADCAST.\n", - current->comm); -#else - return -EACCES; -#endif - } - - lock_sock(sk); - err = -EBUSY; - if (sock_flag(sk, SOCK_ZAPPED)) - if (atalk_autobind(sk) < 0) - goto out; - - err = -ENETUNREACH; - if (!atrtr_get_dev(&addr->sat_addr)) - goto out; - - at->dest_port = addr->sat_port; - at->dest_net = addr->sat_addr.s_net; - at->dest_node = addr->sat_addr.s_node; - - sock->state = SS_CONNECTED; - sk->sk_state = TCP_ESTABLISHED; - err = 0; -out: - release_sock(sk); - return err; -} - -/* - * Find the name of an AppleTalk socket. Just copy the right - * fields into the sockaddr. - */ -static int atalk_getname(struct socket *sock, struct sockaddr *uaddr, - int peer) -{ - struct sockaddr_at sat; - struct sock *sk = sock->sk; - struct atalk_sock *at = at_sk(sk); - int err; - - lock_sock(sk); - err = -ENOBUFS; - if (sock_flag(sk, SOCK_ZAPPED)) - if (atalk_autobind(sk) < 0) - goto out; - - memset(&sat, 0, sizeof(sat)); - - if (peer) { - err = -ENOTCONN; - if (sk->sk_state != TCP_ESTABLISHED) - goto out; - - sat.sat_addr.s_net = at->dest_net; - sat.sat_addr.s_node = at->dest_node; - sat.sat_port = at->dest_port; - } else { - sat.sat_addr.s_net = at->src_net; - sat.sat_addr.s_node = at->src_node; - sat.sat_port = at->src_port; - } - - sat.sat_family = AF_APPLETALK; - memcpy(uaddr, &sat, sizeof(sat)); - err = sizeof(struct sockaddr_at); - -out: - release_sock(sk); - return err; -} - -static int atalk_route_packet(struct sk_buff *skb, struct net_device *dev, - struct ddpehdr *ddp, __u16 len_hops, int origlen) -{ - struct atalk_route *rt; - struct atalk_addr ta; - - /* - * Don't route multicast, etc., packets, or packets sent to "this - * network" - */ - if (skb->pkt_type != PACKET_HOST || !ddp->deh_dnet) { - /* - * FIXME: - * - * Can it ever happen that a packet is from a PPP iface and - * needs to be broadcast onto the default network? - */ - if (dev->type == ARPHRD_PPP) - printk(KERN_DEBUG "AppleTalk: didn't forward broadcast " - "packet received from PPP iface\n"); - goto free_it; - } - - ta.s_net = ddp->deh_dnet; - ta.s_node = ddp->deh_dnode; - - /* Route the packet */ - rt = atrtr_find(&ta); - /* increment hops count */ - len_hops += 1 << 10; - if (!rt || !(len_hops & (15 << 10))) - goto free_it; - - /* FIXME: use skb->cb to be able to use shared skbs */ - - /* - * Route goes through another gateway, so set the target to the - * gateway instead. - */ - - if (rt->flags & RTF_GATEWAY) { - ta.s_net = rt->gateway.s_net; - ta.s_node = rt->gateway.s_node; - } - - /* Fix up skb->len field */ - skb_trim(skb, min_t(unsigned int, origlen, - (rt->dev->hard_header_len + - ddp_dl->header_length + (len_hops & 1023)))); - - /* FIXME: use skb->cb to be able to use shared skbs */ - ddp->deh_len_hops = htons(len_hops); - - /* - * Send the buffer onwards - * - * Now we must always be careful. If it's come from LocalTalk to - * EtherTalk it might not fit - * - * Order matters here: If a packet has to be copied to make a new - * headroom (rare hopefully) then it won't need unsharing. - * - * Note. ddp-> becomes invalid at the realloc. - */ - if (skb_headroom(skb) < 22) { - /* 22 bytes - 12 ether, 2 len, 3 802.2 5 snap */ - struct sk_buff *nskb = skb_realloc_headroom(skb, 32); - kfree_skb(skb); - skb = nskb; - } else - skb = skb_unshare(skb, GFP_ATOMIC); - - /* - * If the buffer didn't vanish into the lack of space bitbucket we can - * send it. - */ - if (skb == NULL) - goto drop; - - if (aarp_send_ddp(rt->dev, skb, &ta, NULL) == NET_XMIT_DROP) - return NET_RX_DROP; - return NET_RX_SUCCESS; -free_it: - kfree_skb(skb); -drop: - return NET_RX_DROP; -} - -/** - * atalk_rcv - Receive a packet (in skb) from device dev - * @skb: packet received - * @dev: network device where the packet comes from - * @pt: packet type - * @orig_dev: the original receive net device - * - * Receive a packet (in skb) from device dev. This has come from the SNAP - * decoder, and on entry skb->transport_header is the DDP header, skb->len - * is the DDP header, skb->len is the DDP length. The physical headers - * have been extracted. PPP should probably pass frames marked as for this - * layer. [ie ARPHRD_ETHERTALK] - */ -static int atalk_rcv(struct sk_buff *skb, struct net_device *dev, - struct packet_type *pt, struct net_device *orig_dev) -{ - struct ddpehdr *ddp; - struct sock *sock; - struct atalk_iface *atif; - struct sockaddr_at tosat; - int origlen; - __u16 len_hops; - - if (!net_eq(dev_net(dev), &init_net)) - goto drop; - - /* Don't mangle buffer if shared */ - if (!(skb = skb_share_check(skb, GFP_ATOMIC))) - goto out; - - /* Size check and make sure header is contiguous */ - if (!pskb_may_pull(skb, sizeof(*ddp))) - goto drop; - - ddp = ddp_hdr(skb); - - len_hops = ntohs(ddp->deh_len_hops); - - /* Trim buffer in case of stray trailing data */ - origlen = skb->len; - skb_trim(skb, min_t(unsigned int, skb->len, len_hops & 1023)); - - /* - * Size check to see if ddp->deh_len was crap - * (Otherwise we'll detonate most spectacularly - * in the middle of atalk_checksum() or recvmsg()). - */ - if (skb->len < sizeof(*ddp) || skb->len < (len_hops & 1023)) { - pr_debug("AppleTalk: dropping corrupted frame (deh_len=%u, " - "skb->len=%u)\n", len_hops & 1023, skb->len); - goto drop; - } - - /* - * Any checksums. Note we don't do htons() on this == is assumed to be - * valid for net byte orders all over the networking code... - */ - if (ddp->deh_sum && - atalk_checksum(skb, len_hops & 1023) != ddp->deh_sum) - /* Not a valid AppleTalk frame - dustbin time */ - goto drop; - - /* Check the packet is aimed at us */ - if (!ddp->deh_dnet) /* Net 0 is 'this network' */ - atif = atalk_find_anynet(ddp->deh_dnode, dev); - else - atif = atalk_find_interface(ddp->deh_dnet, ddp->deh_dnode); - - if (!atif) { - /* Not ours, so we route the packet via the correct - * AppleTalk iface - */ - return atalk_route_packet(skb, dev, ddp, len_hops, origlen); - } - - /* - * Which socket - atalk_search_socket() looks for a *full match* - * of the tuple. - */ - tosat.sat_addr.s_net = ddp->deh_dnet; - tosat.sat_addr.s_node = ddp->deh_dnode; - tosat.sat_port = ddp->deh_dport; - - sock = atalk_search_socket(&tosat, atif); - if (!sock) /* But not one of our sockets */ - goto drop; - - /* Queue packet (standard) */ - if (sock_queue_rcv_skb(sock, skb) < 0) - goto drop; - - return NET_RX_SUCCESS; - -drop: - kfree_skb(skb); -out: - return NET_RX_DROP; - -} - -/* - * Receive a LocalTalk frame. We make some demands on the caller here. - * Caller must provide enough headroom on the packet to pull the short - * header and append a long one. - */ -static int ltalk_rcv(struct sk_buff *skb, struct net_device *dev, - struct packet_type *pt, struct net_device *orig_dev) -{ - if (!net_eq(dev_net(dev), &init_net)) - goto freeit; - - /* Expand any short form frames */ - if (skb_mac_header(skb)[2] == 1) { - struct ddpehdr *ddp; - /* Find our address */ - struct atalk_addr *ap = atalk_find_dev_addr(dev); - - if (!ap || skb->len < sizeof(__be16) || skb->len > 1023) - goto freeit; - - /* Don't mangle buffer if shared */ - if (!(skb = skb_share_check(skb, GFP_ATOMIC))) - return 0; - - /* - * The push leaves us with a ddephdr not an shdr, and - * handily the port bytes in the right place preset. - */ - ddp = skb_push(skb, sizeof(*ddp) - 4); - - /* Now fill in the long header */ - - /* - * These two first. The mac overlays the new source/dest - * network information so we MUST copy these before - * we write the network numbers ! - */ - - ddp->deh_dnode = skb_mac_header(skb)[0]; /* From physical header */ - ddp->deh_snode = skb_mac_header(skb)[1]; /* From physical header */ - - ddp->deh_dnet = ap->s_net; /* Network number */ - ddp->deh_snet = ap->s_net; - ddp->deh_sum = 0; /* No checksum */ - /* - * Not sure about this bit... - */ - /* Non routable, so force a drop if we slip up later */ - ddp->deh_len_hops = htons(skb->len + (DDP_MAXHOPS << 10)); - } - skb_reset_transport_header(skb); - - return atalk_rcv(skb, dev, pt, orig_dev); -freeit: - kfree_skb(skb); - return 0; -} - -static int atalk_sendmsg(struct socket *sock, struct msghdr *msg, size_t len) -{ - struct sock *sk = sock->sk; - struct atalk_sock *at = at_sk(sk); - DECLARE_SOCKADDR(struct sockaddr_at *, usat, msg->msg_name); - int flags = msg->msg_flags; - int loopback = 0; - struct sockaddr_at local_satalk, gsat; - struct sk_buff *skb; - struct net_device *dev; - struct ddpehdr *ddp; - int size, hard_header_len; - struct atalk_route *rt, *rt_lo = NULL; - int err; - - if (flags & ~(MSG_DONTWAIT|MSG_CMSG_COMPAT)) - return -EINVAL; - - if (len > DDP_MAXSZ) - return -EMSGSIZE; - - lock_sock(sk); - if (usat) { - err = -EBUSY; - if (sock_flag(sk, SOCK_ZAPPED)) - if (atalk_autobind(sk) < 0) - goto out; - - err = -EINVAL; - if (msg->msg_namelen < sizeof(*usat) || - usat->sat_family != AF_APPLETALK) - goto out; - - err = -EPERM; - /* netatalk didn't implement this check */ - if (usat->sat_addr.s_node == ATADDR_BCAST && - !sock_flag(sk, SOCK_BROADCAST)) { - goto out; - } - } else { - err = -ENOTCONN; - if (sk->sk_state != TCP_ESTABLISHED) - goto out; - usat = &local_satalk; - usat->sat_family = AF_APPLETALK; - usat->sat_port = at->dest_port; - usat->sat_addr.s_node = at->dest_node; - usat->sat_addr.s_net = at->dest_net; - } - - /* Build a packet */ - net_dbg_ratelimited("SK %p: Got address.\n", sk); - - /* For headers */ - size = sizeof(struct ddpehdr) + len + ddp_dl->header_length; - - if (usat->sat_addr.s_net || usat->sat_addr.s_node == ATADDR_ANYNODE) { - rt = atrtr_find(&usat->sat_addr); - } else { - struct atalk_addr at_hint; - - at_hint.s_node = 0; - at_hint.s_net = at->src_net; - - rt = atrtr_find(&at_hint); - } - err = -ENETUNREACH; - if (!rt) - goto out; - - dev = rt->dev; - - net_dbg_ratelimited("SK %p: Size needed %d, device %s\n", - sk, size, dev->name); - - hard_header_len = dev->hard_header_len; - /* Leave room for loopback hardware header if necessary */ - if (usat->sat_addr.s_node == ATADDR_BCAST && - (dev->flags & IFF_LOOPBACK || !(rt->flags & RTF_GATEWAY))) { - struct atalk_addr at_lo; - - at_lo.s_node = 0; - at_lo.s_net = 0; - - rt_lo = atrtr_find(&at_lo); - - if (rt_lo && rt_lo->dev->hard_header_len > hard_header_len) - hard_header_len = rt_lo->dev->hard_header_len; - } - - size += hard_header_len; - release_sock(sk); - skb = sock_alloc_send_skb(sk, size, (flags & MSG_DONTWAIT), &err); - lock_sock(sk); - if (!skb) - goto out; - - skb_reserve(skb, ddp_dl->header_length); - skb_reserve(skb, hard_header_len); - skb->dev = dev; - - net_dbg_ratelimited("SK %p: Begin build.\n", sk); - - ddp = skb_put(skb, sizeof(struct ddpehdr)); - ddp->deh_len_hops = htons(len + sizeof(*ddp)); - ddp->deh_dnet = usat->sat_addr.s_net; - ddp->deh_snet = at->src_net; - ddp->deh_dnode = usat->sat_addr.s_node; - ddp->deh_snode = at->src_node; - ddp->deh_dport = usat->sat_port; - ddp->deh_sport = at->src_port; - - net_dbg_ratelimited("SK %p: Copy user data (%zd bytes).\n", sk, len); - - err = memcpy_from_msg(skb_put(skb, len), msg, len); - if (err) { - kfree_skb(skb); - err = -EFAULT; - goto out; - } - - if (sk->sk_no_check_tx) - ddp->deh_sum = 0; - else - ddp->deh_sum = atalk_checksum(skb, len + sizeof(*ddp)); - - /* - * Loopback broadcast packets to non gateway targets (ie routes - * to group we are in) - */ - if (ddp->deh_dnode == ATADDR_BCAST && - !(rt->flags & RTF_GATEWAY) && !(dev->flags & IFF_LOOPBACK)) { - struct sk_buff *skb2 = skb_copy(skb, GFP_KERNEL); - - if (skb2) { - loopback = 1; - net_dbg_ratelimited("SK %p: send out(copy).\n", sk); - /* - * If it fails it is queued/sent above in the aarp queue - */ - aarp_send_ddp(dev, skb2, &usat->sat_addr, NULL); - } - } - - if (dev->flags & IFF_LOOPBACK || loopback) { - net_dbg_ratelimited("SK %p: Loop back.\n", sk); - /* loop back */ - skb_orphan(skb); - if (ddp->deh_dnode == ATADDR_BCAST) { - if (!rt_lo) { - kfree_skb(skb); - err = -ENETUNREACH; - goto out; - } - dev = rt_lo->dev; - skb->dev = dev; - } - ddp_dl->request(ddp_dl, skb, dev->dev_addr); - } else { - net_dbg_ratelimited("SK %p: send out.\n", sk); - if (rt->flags & RTF_GATEWAY) { - gsat.sat_addr = rt->gateway; - usat = &gsat; - } - - /* - * If it fails it is queued/sent above in the aarp queue - */ - aarp_send_ddp(dev, skb, &usat->sat_addr, NULL); - } - net_dbg_ratelimited("SK %p: Done write (%zd).\n", sk, len); - -out: - release_sock(sk); - return err ? : len; -} - -static int atalk_recvmsg(struct socket *sock, struct msghdr *msg, size_t size, - int flags) -{ - struct sock *sk = sock->sk; - struct ddpehdr *ddp; - int copied = 0; - int offset = 0; - int err = 0; - struct sk_buff *skb; - - skb = skb_recv_datagram(sk, flags, &err); - lock_sock(sk); - - if (!skb) - goto out; - - /* FIXME: use skb->cb to be able to use shared skbs */ - ddp = ddp_hdr(skb); - copied = ntohs(ddp->deh_len_hops) & 1023; - - if (sk->sk_type != SOCK_RAW) { - offset = sizeof(*ddp); - copied -= offset; - } - - if (copied > size) { - copied = size; - msg->msg_flags |= MSG_TRUNC; - } - err = skb_copy_datagram_msg(skb, offset, msg, copied); - - if (!err && msg->msg_name) { - DECLARE_SOCKADDR(struct sockaddr_at *, sat, msg->msg_name); - sat->sat_family = AF_APPLETALK; - sat->sat_port = ddp->deh_sport; - sat->sat_addr.s_node = ddp->deh_snode; - sat->sat_addr.s_net = ddp->deh_snet; - msg->msg_namelen = sizeof(*sat); - } - - skb_free_datagram(sk, skb); /* Free the datagram. */ - -out: - release_sock(sk); - return err ? : copied; -} - - -/* - * AppleTalk ioctl calls. - */ -static int atalk_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) -{ - int rc = -ENOIOCTLCMD; - struct sock *sk = sock->sk; - void __user *argp = (void __user *)arg; - - switch (cmd) { - /* Protocol layer */ - case TIOCOUTQ: { - long amount = sk->sk_sndbuf - sk_wmem_alloc_get(sk); - - if (amount < 0) - amount = 0; - rc = put_user(amount, (int __user *)argp); - break; - } - case TIOCINQ: { - struct sk_buff *skb; - long amount = 0; - - spin_lock_irq(&sk->sk_receive_queue.lock); - skb = skb_peek(&sk->sk_receive_queue); - if (skb) - amount = skb->len - sizeof(struct ddpehdr); - spin_unlock_irq(&sk->sk_receive_queue.lock); - rc = put_user(amount, (int __user *)argp); - break; - } - /* Routing */ - case SIOCADDRT: - case SIOCDELRT: - rc = -EPERM; - if (capable(CAP_NET_ADMIN)) - rc = atrtr_ioctl(cmd, argp); - break; - /* Interface */ - case SIOCGIFADDR: - case SIOCSIFADDR: - case SIOCGIFBRDADDR: - case SIOCATALKDIFADDR: - case SIOCDIFADDR: - case SIOCSARP: /* proxy AARP */ - case SIOCDARP: /* proxy AARP */ - rtnl_lock(); - rc = atif_ioctl(cmd, argp); - rtnl_unlock(); - break; - } - - return rc; -} - - -#ifdef CONFIG_COMPAT -static int atalk_compat_routing_ioctl(struct sock *sk, unsigned int cmd, - struct compat_rtentry __user *ur) -{ - compat_uptr_t rtdev; - struct rtentry rt; - - if (copy_from_user(&rt.rt_dst, &ur->rt_dst, - 3 * sizeof(struct sockaddr)) || - get_user(rt.rt_flags, &ur->rt_flags) || - get_user(rt.rt_metric, &ur->rt_metric) || - get_user(rt.rt_mtu, &ur->rt_mtu) || - get_user(rt.rt_window, &ur->rt_window) || - get_user(rt.rt_irtt, &ur->rt_irtt) || - get_user(rtdev, &ur->rt_dev)) - return -EFAULT; - - switch (cmd) { - case SIOCDELRT: - if (rt.rt_dst.sa_family != AF_APPLETALK) - return -EINVAL; - return atrtr_delete(&((struct sockaddr_at *) - &rt.rt_dst)->sat_addr); - - case SIOCADDRT: - rt.rt_dev = compat_ptr(rtdev); - return atrtr_ioctl_addrt(&rt); - default: - return -EINVAL; - } -} -static int atalk_compat_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) -{ - void __user *argp = compat_ptr(arg); - struct sock *sk = sock->sk; - - switch (cmd) { - case SIOCADDRT: - case SIOCDELRT: - return atalk_compat_routing_ioctl(sk, cmd, argp); - /* - * SIOCATALKDIFADDR is a SIOCPROTOPRIVATE ioctl number, so we - * cannot handle it in common code. The data we access if ifreq - * here is compatible, so we can simply call the native - * handler. - */ - case SIOCATALKDIFADDR: - return atalk_ioctl(sock, cmd, (unsigned long)argp); - default: - return -ENOIOCTLCMD; - } -} -#endif /* CONFIG_COMPAT */ - - -static const struct net_proto_family atalk_family_ops = { - .family = PF_APPLETALK, - .create = atalk_create, - .owner = THIS_MODULE, -}; - -static const struct proto_ops atalk_dgram_ops = { - .family = PF_APPLETALK, - .owner = THIS_MODULE, - .release = atalk_release, - .bind = atalk_bind, - .connect = atalk_connect, - .socketpair = sock_no_socketpair, - .accept = sock_no_accept, - .getname = atalk_getname, - .poll = datagram_poll, - .ioctl = atalk_ioctl, - .gettstamp = sock_gettstamp, -#ifdef CONFIG_COMPAT - .compat_ioctl = atalk_compat_ioctl, -#endif - .listen = sock_no_listen, - .shutdown = sock_no_shutdown, - .sendmsg = atalk_sendmsg, - .recvmsg = atalk_recvmsg, - .mmap = sock_no_mmap, -}; - -static struct notifier_block ddp_notifier = { - .notifier_call = ddp_device_event, -}; - -static struct packet_type ltalk_packet_type __read_mostly = { - .type = cpu_to_be16(ETH_P_LOCALTALK), - .func = ltalk_rcv, -}; - -static struct packet_type ppptalk_packet_type __read_mostly = { - .type = cpu_to_be16(ETH_P_PPPTALK), - .func = atalk_rcv, -}; - -static unsigned char ddp_snap_id[] = { 0x08, 0x00, 0x07, 0x80, 0x9B }; - -/* Export symbols for use by drivers when AppleTalk is a module */ -EXPORT_SYMBOL(atrtr_get_dev); -EXPORT_SYMBOL(atalk_find_dev_addr); - -/* Called by proto.c on kernel start up */ -static int __init atalk_init(void) -{ - int rc; - - rc = proto_register(&ddp_proto, 0); - if (rc) - goto out; - - rc = sock_register(&atalk_family_ops); - if (rc) - goto out_proto; - - ddp_dl = register_snap_client(ddp_snap_id, atalk_rcv); - if (!ddp_dl) { - pr_crit("Unable to register DDP with SNAP.\n"); - rc = -ENOMEM; - goto out_sock; - } - - dev_add_pack(<alk_packet_type); - dev_add_pack(&ppptalk_packet_type); - - rc = register_netdevice_notifier(&ddp_notifier); - if (rc) - goto out_snap; - - rc = aarp_proto_init(); - if (rc) - goto out_dev; - - rc = atalk_proc_init(); - if (rc) - goto out_aarp; - - rc = atalk_register_sysctl(); - if (rc) - goto out_proc; -out: - return rc; -out_proc: - atalk_proc_exit(); -out_aarp: - aarp_cleanup_module(); -out_dev: - unregister_netdevice_notifier(&ddp_notifier); -out_snap: - dev_remove_pack(&ppptalk_packet_type); - dev_remove_pack(<alk_packet_type); - unregister_snap_client(ddp_dl); -out_sock: - sock_unregister(PF_APPLETALK); -out_proto: - proto_unregister(&ddp_proto); - goto out; -} -module_init(atalk_init); - -/* - * No explicit module reference count manipulation is needed in the - * protocol. Socket layer sets module reference count for us - * and interfaces reference counting is done - * by the network device layer. - * - * Ergo, before the AppleTalk module can be removed, all AppleTalk - * sockets should be closed from user space. - */ -static void __exit atalk_exit(void) -{ -#ifdef CONFIG_SYSCTL - atalk_unregister_sysctl(); -#endif /* CONFIG_SYSCTL */ - atalk_proc_exit(); - aarp_cleanup_module(); /* General aarp clean-up. */ - unregister_netdevice_notifier(&ddp_notifier); - dev_remove_pack(<alk_packet_type); - dev_remove_pack(&ppptalk_packet_type); - unregister_snap_client(ddp_dl); - sock_unregister(PF_APPLETALK); - proto_unregister(&ddp_proto); -} -module_exit(atalk_exit); - -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Alan Cox "); -MODULE_DESCRIPTION("AppleTalk 0.20\n"); -MODULE_ALIAS_NETPROTO(PF_APPLETALK); diff --git a/net/appletalk/sysctl_net_atalk.c b/net/appletalk/sysctl_net_atalk.c deleted file mode 100644 index 7aebfe903242..000000000000 --- a/net/appletalk/sysctl_net_atalk.c +++ /dev/null @@ -1,58 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * sysctl_net_atalk.c: sysctl interface to net AppleTalk subsystem. - * - * Begun April 1, 1996, Mike Shaver. - * Added /proc/sys/net/atalk directory entry (empty =) ). [MS] - * Dynamic registration, added aarp entries. (5/30/97 Chris Horn) - */ - -#include -#include -#include - -static struct ctl_table atalk_table[] = { - { - .procname = "aarp-expiry-time", - .data = &sysctl_aarp_expiry_time, - .maxlen = sizeof(int), - .mode = 0644, - .proc_handler = proc_dointvec_jiffies, - }, - { - .procname = "aarp-tick-time", - .data = &sysctl_aarp_tick_time, - .maxlen = sizeof(int), - .mode = 0644, - .proc_handler = proc_dointvec_jiffies, - }, - { - .procname = "aarp-retransmit-limit", - .data = &sysctl_aarp_retransmit_limit, - .maxlen = sizeof(int), - .mode = 0644, - .proc_handler = proc_dointvec, - }, - { - .procname = "aarp-resolve-time", - .data = &sysctl_aarp_resolve_time, - .maxlen = sizeof(int), - .mode = 0644, - .proc_handler = proc_dointvec_jiffies, - }, -}; - -static struct ctl_table_header *atalk_table_header; - -int __init atalk_register_sysctl(void) -{ - atalk_table_header = register_net_sysctl(&init_net, "net/appletalk", atalk_table); - if (!atalk_table_header) - return -ENOMEM; - return 0; -} - -void atalk_unregister_sysctl(void) -{ - unregister_net_sysctl_table(atalk_table_header); -} diff --git a/arch/arm/configs/ixp4xx_defconfig b/arch/arm/configs/ixp4xx_defconfig index 01d72580bcc5..418ef909572b 100644 --- a/arch/arm/configs/ixp4xx_defconfig +++ b/arch/arm/configs/ixp4xx_defconfig @@ -55,7 +55,6 @@ CONFIG_ATM=y CONFIG_ATM_BR2684=m CONFIG_BRIDGE=m CONFIG_VLAN_8021Q=m -CONFIG_ATALK=m CONFIG_DEV_APPLETALK=m CONFIG_IPDDP=m CONFIG_IPDDP_ENCAP=y diff --git a/arch/m68k/configs/amiga_defconfig b/arch/m68k/configs/amiga_defconfig index aadff466830f..93b1cb632b19 100644 --- a/arch/m68k/configs/amiga_defconfig +++ b/arch/m68k/configs/amiga_defconfig @@ -236,7 +236,6 @@ CONFIG_RDS=m CONFIG_RDS_TCP=m CONFIG_L2TP=m CONFIG_BRIDGE=m -CONFIG_ATALK=m CONFIG_DNS_RESOLVER=y CONFIG_BATMAN_ADV=m # CONFIG_BATMAN_ADV_BATMAN_V is not set diff --git a/arch/m68k/configs/apollo_defconfig b/arch/m68k/configs/apollo_defconfig index ea9487a39884..6edfa55c8b9f 100644 --- a/arch/m68k/configs/apollo_defconfig +++ b/arch/m68k/configs/apollo_defconfig @@ -232,7 +232,6 @@ CONFIG_RDS=m CONFIG_RDS_TCP=m CONFIG_L2TP=m CONFIG_BRIDGE=m -CONFIG_ATALK=m CONFIG_DNS_RESOLVER=y CONFIG_BATMAN_ADV=m # CONFIG_BATMAN_ADV_BATMAN_V is not set diff --git a/arch/m68k/configs/atari_defconfig b/arch/m68k/configs/atari_defconfig index a70127ac7a2d..f8808aac9e63 100644 --- a/arch/m68k/configs/atari_defconfig +++ b/arch/m68k/configs/atari_defconfig @@ -239,7 +239,6 @@ CONFIG_RDS=m CONFIG_RDS_TCP=m CONFIG_L2TP=m CONFIG_BRIDGE=m -CONFIG_ATALK=m CONFIG_DNS_RESOLVER=y CONFIG_BATMAN_ADV=m # CONFIG_BATMAN_ADV_BATMAN_V is not set diff --git a/arch/m68k/configs/bvme6000_defconfig b/arch/m68k/configs/bvme6000_defconfig index 83da79382538..067ecf850201 100644 --- a/arch/m68k/configs/bvme6000_defconfig +++ b/arch/m68k/configs/bvme6000_defconfig @@ -229,7 +229,6 @@ CONFIG_RDS=m CONFIG_RDS_TCP=m CONFIG_L2TP=m CONFIG_BRIDGE=m -CONFIG_ATALK=m CONFIG_DNS_RESOLVER=y CONFIG_BATMAN_ADV=m # CONFIG_BATMAN_ADV_BATMAN_V is not set diff --git a/arch/m68k/configs/hp300_defconfig b/arch/m68k/configs/hp300_defconfig index cea5ab74b3b1..aa93c67caa43 100644 --- a/arch/m68k/configs/hp300_defconfig +++ b/arch/m68k/configs/hp300_defconfig @@ -231,7 +231,6 @@ CONFIG_RDS=m CONFIG_RDS_TCP=m CONFIG_L2TP=m CONFIG_BRIDGE=m -CONFIG_ATALK=m CONFIG_DNS_RESOLVER=y CONFIG_BATMAN_ADV=m # CONFIG_BATMAN_ADV_BATMAN_V is not set diff --git a/arch/m68k/configs/mac_defconfig b/arch/m68k/configs/mac_defconfig index 26406777376d..79d2e0383484 100644 --- a/arch/m68k/configs/mac_defconfig +++ b/arch/m68k/configs/mac_defconfig @@ -230,7 +230,6 @@ CONFIG_RDS=m CONFIG_RDS_TCP=m CONFIG_L2TP=m CONFIG_BRIDGE=m -CONFIG_ATALK=m CONFIG_DNS_RESOLVER=y CONFIG_BATMAN_ADV=m # CONFIG_BATMAN_ADV_BATMAN_V is not set diff --git a/arch/m68k/configs/multi_defconfig b/arch/m68k/configs/multi_defconfig index 8357491645ad..b13889268ff5 100644 --- a/arch/m68k/configs/multi_defconfig +++ b/arch/m68k/configs/multi_defconfig @@ -250,7 +250,6 @@ CONFIG_RDS=m CONFIG_RDS_TCP=m CONFIG_L2TP=m CONFIG_BRIDGE=m -CONFIG_ATALK=m CONFIG_DNS_RESOLVER=y CONFIG_BATMAN_ADV=m # CONFIG_BATMAN_ADV_BATMAN_V is not set diff --git a/arch/m68k/configs/mvme147_defconfig b/arch/m68k/configs/mvme147_defconfig index fe94f95862e7..cd773d2509bb 100644 --- a/arch/m68k/configs/mvme147_defconfig +++ b/arch/m68k/configs/mvme147_defconfig @@ -228,7 +228,6 @@ CONFIG_RDS=m CONFIG_RDS_TCP=m CONFIG_L2TP=m CONFIG_BRIDGE=m -CONFIG_ATALK=m CONFIG_DNS_RESOLVER=y CONFIG_BATMAN_ADV=m # CONFIG_BATMAN_ADV_BATMAN_V is not set diff --git a/arch/m68k/configs/mvme16x_defconfig b/arch/m68k/configs/mvme16x_defconfig index ba67cacc079e..af921f24a5c8 100644 --- a/arch/m68k/configs/mvme16x_defconfig +++ b/arch/m68k/configs/mvme16x_defconfig @@ -229,7 +229,6 @@ CONFIG_RDS=m CONFIG_RDS_TCP=m CONFIG_L2TP=m CONFIG_BRIDGE=m -CONFIG_ATALK=m CONFIG_DNS_RESOLVER=y CONFIG_BATMAN_ADV=m # CONFIG_BATMAN_ADV_BATMAN_V is not set diff --git a/arch/m68k/configs/q40_defconfig b/arch/m68k/configs/q40_defconfig index 552399979e4b..f2eb67618e97 100644 --- a/arch/m68k/configs/q40_defconfig +++ b/arch/m68k/configs/q40_defconfig @@ -230,7 +230,6 @@ CONFIG_RDS=m CONFIG_RDS_TCP=m CONFIG_L2TP=m CONFIG_BRIDGE=m -CONFIG_ATALK=m CONFIG_DNS_RESOLVER=y CONFIG_BATMAN_ADV=m # CONFIG_BATMAN_ADV_BATMAN_V is not set diff --git a/arch/m68k/configs/sun3_defconfig b/arch/m68k/configs/sun3_defconfig index b4f3935d3d18..108dac7ed55e 100644 --- a/arch/m68k/configs/sun3_defconfig +++ b/arch/m68k/configs/sun3_defconfig @@ -225,7 +225,6 @@ CONFIG_RDS=m CONFIG_RDS_TCP=m CONFIG_L2TP=m CONFIG_BRIDGE=m -CONFIG_ATALK=m CONFIG_DNS_RESOLVER=y CONFIG_BATMAN_ADV=m # CONFIG_BATMAN_ADV_BATMAN_V is not set diff --git a/arch/m68k/configs/sun3x_defconfig b/arch/m68k/configs/sun3x_defconfig index bb519520ae6e..1e1d946cbe23 100644 --- a/arch/m68k/configs/sun3x_defconfig +++ b/arch/m68k/configs/sun3x_defconfig @@ -226,7 +226,6 @@ CONFIG_RDS=m CONFIG_RDS_TCP=m CONFIG_L2TP=m CONFIG_BRIDGE=m -CONFIG_ATALK=m CONFIG_DNS_RESOLVER=y CONFIG_BATMAN_ADV=m # CONFIG_BATMAN_ADV_BATMAN_V is not set diff --git a/arch/mips/configs/gpr_defconfig b/arch/mips/configs/gpr_defconfig index 47016655a089..7834569a8314 100644 --- a/arch/mips/configs/gpr_defconfig +++ b/arch/mips/configs/gpr_defconfig @@ -91,7 +91,6 @@ CONFIG_ATM_BR2684=m CONFIG_BRIDGE=m CONFIG_VLAN_8021Q=m CONFIG_LLC2=m -CONFIG_ATALK=m CONFIG_DEV_APPLETALK=m CONFIG_IPDDP=m CONFIG_IPDDP_ENCAP=y diff --git a/arch/mips/configs/malta_defconfig b/arch/mips/configs/malta_defconfig index 61c9d5cd1a75..89d7c47ca7f0 100644 --- a/arch/mips/configs/malta_defconfig +++ b/arch/mips/configs/malta_defconfig @@ -170,7 +170,6 @@ CONFIG_IP_SCTP=m CONFIG_BRIDGE=m CONFIG_VLAN_8021Q=m CONFIG_VLAN_8021Q_GVRP=y -CONFIG_ATALK=m CONFIG_DEV_APPLETALK=m CONFIG_IPDDP=m CONFIG_IPDDP_ENCAP=y diff --git a/arch/mips/configs/malta_kvm_defconfig b/arch/mips/configs/malta_kvm_defconfig index f862fbc7fbb7..39c69af12adc 100644 --- a/arch/mips/configs/malta_kvm_defconfig +++ b/arch/mips/configs/malta_kvm_defconfig @@ -174,7 +174,6 @@ CONFIG_IP_SCTP=m CONFIG_BRIDGE=m CONFIG_VLAN_8021Q=m CONFIG_VLAN_8021Q_GVRP=y -CONFIG_ATALK=m CONFIG_DEV_APPLETALK=m CONFIG_IPDDP=m CONFIG_IPDDP_ENCAP=y diff --git a/arch/mips/configs/malta_qemu_32r6_defconfig b/arch/mips/configs/malta_qemu_32r6_defconfig index 14cdd23f1acb..5feb1dc43bae 100644 --- a/arch/mips/configs/malta_qemu_32r6_defconfig +++ b/arch/mips/configs/malta_qemu_32r6_defconfig @@ -46,7 +46,6 @@ CONFIG_INET6_IPCOMP=m CONFIG_IPV6_TUNNEL=m CONFIG_BRIDGE=m CONFIG_VLAN_8021Q=m -CONFIG_ATALK=m CONFIG_DEV_APPLETALK=m CONFIG_IPDDP=m CONFIG_IPDDP_ENCAP=y diff --git a/arch/mips/configs/maltaaprp_defconfig b/arch/mips/configs/maltaaprp_defconfig index 2943593264b9..a69fb992b82a 100644 --- a/arch/mips/configs/maltaaprp_defconfig +++ b/arch/mips/configs/maltaaprp_defconfig @@ -48,7 +48,6 @@ CONFIG_INET6_IPCOMP=m CONFIG_IPV6_TUNNEL=m CONFIG_BRIDGE=m CONFIG_VLAN_8021Q=m -CONFIG_ATALK=m CONFIG_DEV_APPLETALK=m CONFIG_IPDDP=m CONFIG_IPDDP_ENCAP=y diff --git a/arch/mips/configs/maltasmvp_defconfig b/arch/mips/configs/maltasmvp_defconfig index 47226fca0548..689edb56c055 100644 --- a/arch/mips/configs/maltasmvp_defconfig +++ b/arch/mips/configs/maltasmvp_defconfig @@ -49,7 +49,6 @@ CONFIG_INET6_IPCOMP=m CONFIG_IPV6_TUNNEL=m CONFIG_BRIDGE=m CONFIG_VLAN_8021Q=m -CONFIG_ATALK=m CONFIG_DEV_APPLETALK=m CONFIG_IPDDP=m CONFIG_IPDDP_ENCAP=y diff --git a/arch/mips/configs/maltasmvp_eva_defconfig b/arch/mips/configs/maltasmvp_eva_defconfig index 09187a78409f..a56db606b2d8 100644 --- a/arch/mips/configs/maltasmvp_eva_defconfig +++ b/arch/mips/configs/maltasmvp_eva_defconfig @@ -50,7 +50,6 @@ CONFIG_INET6_IPCOMP=m CONFIG_IPV6_TUNNEL=m CONFIG_BRIDGE=m CONFIG_VLAN_8021Q=m -CONFIG_ATALK=m CONFIG_DEV_APPLETALK=m CONFIG_IPDDP=m CONFIG_IPDDP_ENCAP=y diff --git a/arch/mips/configs/maltaup_defconfig b/arch/mips/configs/maltaup_defconfig index a80783097c1e..ee10762ab593 100644 --- a/arch/mips/configs/maltaup_defconfig +++ b/arch/mips/configs/maltaup_defconfig @@ -47,7 +47,6 @@ CONFIG_INET6_IPCOMP=m CONFIG_IPV6_TUNNEL=m CONFIG_BRIDGE=m CONFIG_VLAN_8021Q=m -CONFIG_ATALK=m CONFIG_DEV_APPLETALK=m CONFIG_IPDDP=m CONFIG_IPDDP_ENCAP=y diff --git a/arch/mips/configs/maltaup_xpa_defconfig b/arch/mips/configs/maltaup_xpa_defconfig index e660c503654e..0e207bb0f794 100644 --- a/arch/mips/configs/maltaup_xpa_defconfig +++ b/arch/mips/configs/maltaup_xpa_defconfig @@ -171,7 +171,6 @@ CONFIG_IP_SCTP=m CONFIG_BRIDGE=m CONFIG_VLAN_8021Q=m CONFIG_VLAN_8021Q_GVRP=y -CONFIG_ATALK=m CONFIG_DEV_APPLETALK=m CONFIG_IPDDP=m CONFIG_IPDDP_ENCAP=y diff --git a/arch/mips/configs/mtx1_defconfig b/arch/mips/configs/mtx1_defconfig index a1c374bd4785..46b40784a828 100644 --- a/arch/mips/configs/mtx1_defconfig +++ b/arch/mips/configs/mtx1_defconfig @@ -136,7 +136,6 @@ CONFIG_ATM_BR2684=m CONFIG_BRIDGE=m CONFIG_VLAN_8021Q=m CONFIG_LLC2=m -CONFIG_ATALK=m CONFIG_DEV_APPLETALK=m CONFIG_IPDDP=m CONFIG_IPDDP_ENCAP=y diff --git a/arch/powerpc/configs/ppc6xx_defconfig b/arch/powerpc/configs/ppc6xx_defconfig index c9bdaed06d03..f528cab1c6cf 100644 --- a/arch/powerpc/configs/ppc6xx_defconfig +++ b/arch/powerpc/configs/ppc6xx_defconfig @@ -228,7 +228,6 @@ CONFIG_ATM=m CONFIG_ATM_BR2684=m CONFIG_BRIDGE=m CONFIG_VLAN_8021Q=m -CONFIG_ATALK=m CONFIG_DEV_APPLETALK=m CONFIG_IPDDP=m CONFIG_IPDDP_ENCAP=y diff --git a/arch/sh/configs/landisk_defconfig b/arch/sh/configs/landisk_defconfig index 4c39a23e6e0d..2b7e10c9acee 100644 --- a/arch/sh/configs/landisk_defconfig +++ b/arch/sh/configs/landisk_defconfig @@ -24,7 +24,6 @@ CONFIG_IP_ADVANCED_ROUTER=y CONFIG_IP_PNP=y # CONFIG_IPV6 is not set CONFIG_NETFILTER=y -CONFIG_ATALK=m CONFIG_BLK_DEV_LOOP=y CONFIG_BLK_DEV_RAM=y CONFIG_ATA=y -- 2.54.0