diff options
Diffstat (limited to 'net/irda/irlmp_frame.c')
-rw-r--r-- | net/irda/irlmp_frame.c | 122 |
1 files changed, 61 insertions, 61 deletions
diff --git a/net/irda/irlmp_frame.c b/net/irda/irlmp_frame.c index 39761a1d18f..559302d3fe6 100644 --- a/net/irda/irlmp_frame.c +++ b/net/irda/irlmp_frame.c @@ -1,5 +1,5 @@ /********************************************************************* - * + * * Filename: irlmp_frame.c * Version: 0.9 * Description: IrLMP frame implementation @@ -8,18 +8,18 @@ * Created at: Tue Aug 19 02:09:59 1997 * Modified at: Mon Dec 13 13:41:12 1999 * Modified by: Dag Brattli <dagb@cs.uit.no> - * + * * Copyright (c) 1998-1999 Dag Brattli <dagb@cs.uit.no> * All Rights Reserved. * Copyright (c) 2000-2003 Jean Tourrilhes <jt@hpl.hp.com> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of * the License, or (at your option) any later version. * * Neither Dag Brattli nor University of Tromsų admit liability nor - * provide warranty for any of this software. This material is + * provide warranty for any of this software. This material is * provided "AS-IS" and at no charge. * ********************************************************************/ @@ -34,7 +34,7 @@ #include <net/irda/irlmp_frame.h> #include <net/irda/discovery.h> -static struct lsap_cb *irlmp_find_lsap(struct lap_cb *self, __u8 dlsap, +static struct lsap_cb *irlmp_find_lsap(struct lap_cb *self, __u8 dlsap, __u8 slsap, int status, hashbin_t *); inline void irlmp_send_data_pdu(struct lap_cb *self, __u8 dlsap, __u8 slsap, @@ -56,18 +56,18 @@ inline void irlmp_send_data_pdu(struct lap_cb *self, __u8 dlsap, __u8 slsap, * Send Link Control Frame to IrLAP */ void irlmp_send_lcf_pdu(struct lap_cb *self, __u8 dlsap, __u8 slsap, - __u8 opcode, struct sk_buff *skb) + __u8 opcode, struct sk_buff *skb) { __u8 *frame; - + IRDA_DEBUG(2, "%s()\n", __FUNCTION__); IRDA_ASSERT(self != NULL, return;); IRDA_ASSERT(self->magic == LMP_LAP_MAGIC, return;); IRDA_ASSERT(skb != NULL, return;); - + frame = skb->data; - + frame[0] = dlsap | CONTROL_BIT; frame[1] = slsap; @@ -87,14 +87,14 @@ void irlmp_send_lcf_pdu(struct lap_cb *self, __u8 dlsap, __u8 slsap, * Used by IrLAP to pass received data frames to IrLMP layer * */ -void irlmp_link_data_indication(struct lap_cb *self, struct sk_buff *skb, +void irlmp_link_data_indication(struct lap_cb *self, struct sk_buff *skb, int unreliable) { struct lsap_cb *lsap; __u8 slsap_sel; /* Source (this) LSAP address */ __u8 dlsap_sel; /* Destination LSAP address */ __u8 *fp; - + IRDA_DEBUG(4, "%s()\n", __FUNCTION__); IRDA_ASSERT(self != NULL, return;); @@ -104,11 +104,11 @@ void irlmp_link_data_indication(struct lap_cb *self, struct sk_buff *skb, fp = skb->data; /* - * The next statements may be confusing, but we do this so that + * The next statements may be confusing, but we do this so that * destination LSAP of received frame is source LSAP in our view */ - slsap_sel = fp[0] & LSAP_MASK; - dlsap_sel = fp[1]; + slsap_sel = fp[0] & LSAP_MASK; + dlsap_sel = fp[1]; /* * Check if this is an incoming connection, since we must deal with @@ -118,11 +118,11 @@ void irlmp_link_data_indication(struct lap_cb *self, struct sk_buff *skb, IRDA_DEBUG(3, "%s(), incoming connection, " "source LSAP=%d, dest LSAP=%d\n", __FUNCTION__, slsap_sel, dlsap_sel); - + /* Try to find LSAP among the unconnected LSAPs */ lsap = irlmp_find_lsap(self, dlsap_sel, slsap_sel, CONNECT_CMD, irlmp->unconnected_lsaps); - + /* Maybe LSAP was already connected, so try one more time */ if (!lsap) { IRDA_DEBUG(1, "%s(), incoming connection for LSAP already connected\n", __FUNCTION__); @@ -130,9 +130,9 @@ void irlmp_link_data_indication(struct lap_cb *self, struct sk_buff *skb, self->lsaps); } } else - lsap = irlmp_find_lsap(self, dlsap_sel, slsap_sel, 0, + lsap = irlmp_find_lsap(self, dlsap_sel, slsap_sel, 0, self->lsaps); - + if (lsap == NULL) { IRDA_DEBUG(2, "IrLMP, Sorry, no LSAP for received frame!\n"); IRDA_DEBUG(2, "%s(), slsap_sel = %02x, dlsap_sel = %02x\n", @@ -146,8 +146,8 @@ void irlmp_link_data_indication(struct lap_cb *self, struct sk_buff *skb, return; } - /* - * Check if we received a control frame? + /* + * Check if we received a control frame? */ if (fp[0] & CONTROL_BIT) { switch (fp[2]) { @@ -161,7 +161,7 @@ void irlmp_link_data_indication(struct lap_cb *self, struct sk_buff *skb, case DISCONNECT: IRDA_DEBUG(4, "%s(), Disconnect indication!\n", __FUNCTION__); - irlmp_do_lsap_event(lsap, LM_DISCONNECT_INDICATION, + irlmp_do_lsap_event(lsap, LM_DISCONNECT_INDICATION, skb); break; case ACCESSMODE_CMD: @@ -181,7 +181,7 @@ void irlmp_link_data_indication(struct lap_cb *self, struct sk_buff *skb, irlmp_udata_indication(lsap, skb); else irlmp_do_lsap_event(lsap, LM_UDATA_INDICATION, skb); - } else { + } else { /* Optimize and bypass the state machine if possible */ if (lsap->lsap_state == LSAP_DATA_TRANSFER_READY) irlmp_data_indication(lsap, skb); @@ -193,7 +193,7 @@ void irlmp_link_data_indication(struct lap_cb *self, struct sk_buff *skb, /* * Function irlmp_link_unitdata_indication (self, skb) * - * + * * */ #ifdef CONFIG_IRDA_ULTRA @@ -205,7 +205,7 @@ void irlmp_link_unitdata_indication(struct lap_cb *self, struct sk_buff *skb) __u8 pid; /* Protocol identifier */ __u8 *fp; unsigned long flags; - + IRDA_DEBUG(4, "%s()\n", __FUNCTION__); IRDA_ASSERT(self != NULL, return;); @@ -215,13 +215,13 @@ void irlmp_link_unitdata_indication(struct lap_cb *self, struct sk_buff *skb) fp = skb->data; /* - * The next statements may be confusing, but we do this so that + * The next statements may be confusing, but we do this so that * destination LSAP of received frame is source LSAP in our view */ - slsap_sel = fp[0] & LSAP_MASK; + slsap_sel = fp[0] & LSAP_MASK; dlsap_sel = fp[1]; pid = fp[2]; - + if (pid & 0x80) { IRDA_DEBUG(0, "%s(), extension in PID not supp!\n", __FUNCTION__); @@ -233,7 +233,7 @@ void irlmp_link_unitdata_indication(struct lap_cb *self, struct sk_buff *skb) IRDA_DEBUG(0, "%s(), dropping frame!\n", __FUNCTION__); return; } - + /* Search the connectionless LSAP */ spin_lock_irqsave(&irlmp->unconnected_lsaps->hb_spinlock, flags); lsap = (struct lsap_cb *) hashbin_get_first(irlmp->unconnected_lsaps); @@ -241,10 +241,10 @@ void irlmp_link_unitdata_indication(struct lap_cb *self, struct sk_buff *skb) /* * Check if source LSAP and dest LSAP selectors and PID match. */ - if ((lsap->slsap_sel == slsap_sel) && - (lsap->dlsap_sel == dlsap_sel) && - (lsap->pid == pid)) - { + if ((lsap->slsap_sel == slsap_sel) && + (lsap->dlsap_sel == dlsap_sel) && + (lsap->pid == pid)) + { break; } lsap = (struct lsap_cb *) hashbin_get_next(irlmp->unconnected_lsaps); @@ -262,12 +262,12 @@ void irlmp_link_unitdata_indication(struct lap_cb *self, struct sk_buff *skb) /* * Function irlmp_link_disconnect_indication (reason, userdata) * - * IrLAP has disconnected + * IrLAP has disconnected * */ -void irlmp_link_disconnect_indication(struct lap_cb *lap, - struct irlap_cb *irlap, - LAP_REASON reason, +void irlmp_link_disconnect_indication(struct lap_cb *lap, + struct irlap_cb *irlap, + LAP_REASON reason, struct sk_buff *skb) { IRDA_DEBUG(2, "%s()\n", __FUNCTION__); @@ -278,8 +278,8 @@ void irlmp_link_disconnect_indication(struct lap_cb *lap, lap->reason = reason; lap->daddr = DEV_ADDR_ANY; - /* FIXME: must do something with the skb if any */ - + /* FIXME: must do something with the skb if any */ + /* * Inform station state machine */ @@ -292,9 +292,9 @@ void irlmp_link_disconnect_indication(struct lap_cb *lap, * Incoming LAP connection! * */ -void irlmp_link_connect_indication(struct lap_cb *self, __u32 saddr, +void irlmp_link_connect_indication(struct lap_cb *self, __u32 saddr, __u32 daddr, struct qos_info *qos, - struct sk_buff *skb) + struct sk_buff *skb) { IRDA_DEBUG(4, "%s()\n", __FUNCTION__); @@ -314,7 +314,7 @@ void irlmp_link_connect_indication(struct lap_cb *self, __u32 saddr, * LAP connection confirmed! * */ -void irlmp_link_connect_confirm(struct lap_cb *self, struct qos_info *qos, +void irlmp_link_connect_confirm(struct lap_cb *self, struct qos_info *qos, struct sk_buff *skb) { IRDA_DEBUG(4, "%s()\n", __FUNCTION__); @@ -359,7 +359,7 @@ void irlmp_link_connect_confirm(struct lap_cb *self, struct qos_info *qos, * * Jean II */ -void irlmp_link_discovery_indication(struct lap_cb *self, +void irlmp_link_discovery_indication(struct lap_cb *self, discovery_t *discovery) { IRDA_ASSERT(self != NULL, return;); @@ -367,7 +367,7 @@ void irlmp_link_discovery_indication(struct lap_cb *self, /* Add to main log, cleanup */ irlmp_add_discovery(irlmp->cachelog, discovery); - + /* Just handle it the same way as a discovery confirm, * bypass the LM_LAP state machine (see below) */ irlmp_discovery_confirm(irlmp->cachelog, DISCOVERY_PASSIVE); @@ -387,7 +387,7 @@ void irlmp_link_discovery_confirm(struct lap_cb *self, hashbin_t *log) IRDA_ASSERT(self != NULL, return;); IRDA_ASSERT(self->magic == LMP_LAP_MAGIC, return;); - + /* Add to main log, cleanup */ irlmp_add_discovery_log(irlmp->cachelog, log); @@ -420,7 +420,7 @@ static inline void irlmp_update_cache(struct lap_cb *lap, * Find handle associated with destination and source LSAP * * Any IrDA connection (LSAP/TSAP) is uniquely identified by - * 3 parameters, the local lsap, the remote lsap and the remote address. + * 3 parameters, the local lsap, the remote lsap and the remote address. * We may initiate multiple connections to the same remote service * (they will have different local lsap), a remote device may initiate * multiple connections to the same local service (they will have @@ -433,20 +433,20 @@ static inline void irlmp_update_cache(struct lap_cb *lap, */ static struct lsap_cb *irlmp_find_lsap(struct lap_cb *self, __u8 dlsap_sel, __u8 slsap_sel, int status, - hashbin_t *queue) + hashbin_t *queue) { struct lsap_cb *lsap; unsigned long flags; - - /* + + /* * Optimize for the common case. We assume that the last frame * received is in the same connection as the last one, so check in * cache first to avoid the linear search */ #ifdef CONFIG_IRDA_CACHE_LAST_LSAP - if ((self->cache.valid) && - (self->cache.slsap_sel == slsap_sel) && - (self->cache.dlsap_sel == dlsap_sel)) + if ((self->cache.valid) && + (self->cache.slsap_sel == slsap_sel) && + (self->cache.dlsap_sel == dlsap_sel)) { return (self->cache.lsap); } @@ -456,14 +456,14 @@ static struct lsap_cb *irlmp_find_lsap(struct lap_cb *self, __u8 dlsap_sel, lsap = (struct lsap_cb *) hashbin_get_first(queue); while (lsap != NULL) { - /* - * If this is an incoming connection, then the destination - * LSAP selector may have been specified as LM_ANY so that + /* + * If this is an incoming connection, then the destination + * LSAP selector may have been specified as LM_ANY so that * any client can connect. In that case we only need to check * if the source LSAP (in our view!) match! */ - if ((status == CONNECT_CMD) && - (lsap->slsap_sel == slsap_sel) && + if ((status == CONNECT_CMD) && + (lsap->slsap_sel == slsap_sel) && (lsap->dlsap_sel == LSAP_ANY)) { /* This is where the dest lsap sel is set on incoming * lsaps */ @@ -473,8 +473,8 @@ static struct lsap_cb *irlmp_find_lsap(struct lap_cb *self, __u8 dlsap_sel, /* * Check if source LSAP and dest LSAP selectors match. */ - if ((lsap->slsap_sel == slsap_sel) && - (lsap->dlsap_sel == dlsap_sel)) + if ((lsap->slsap_sel == slsap_sel) && + (lsap->dlsap_sel == dlsap_sel)) break; lsap = (struct lsap_cb *) hashbin_get_next(queue); |