[B.A.T.M.A.N.] [PATCH 1/3] Staging: batman-adv: add routing debug log accessible via debugfs

From: Marek Lindner lindner_marek@yahoo.de

All routing debug messages are saved in a ring buffer that can be read via the debugfs file "log". Note that CONFIG_BATMAN_ADV_DEBUG must be activated to have the debug logs compiled in.

Signed-off-by: Marek Lindner lindner_marek@yahoo.de Signed-off-by: Sven Eckelmann sven.eckelmann@gmx.de --- drivers/staging/batman-adv/aggregation.c | 5 +- drivers/staging/batman-adv/bat_debugfs.c | 190 ++++++++++++++++++++++++ drivers/staging/batman-adv/bat_sysfs.c | 54 +++++++ drivers/staging/batman-adv/bitarray.c | 7 +- drivers/staging/batman-adv/hard-interface.c | 4 +- drivers/staging/batman-adv/icmp_socket.c | 8 +- drivers/staging/batman-adv/main.c | 11 -- drivers/staging/batman-adv/main.h | 31 +++-- drivers/staging/batman-adv/originator.c | 16 ++- drivers/staging/batman-adv/routing.c | 60 +++++--- drivers/staging/batman-adv/send.c | 25 +++- drivers/staging/batman-adv/translation-table.c | 21 ++- drivers/staging/batman-adv/types.h | 12 ++- 13 files changed, 371 insertions(+), 73 deletions(-)

diff --git a/drivers/staging/batman-adv/aggregation.c b/drivers/staging/batman-adv/aggregation.c index 3a5c349..9862d16 100644 --- a/drivers/staging/batman-adv/aggregation.c +++ b/drivers/staging/batman-adv/aggregation.c @@ -106,11 +106,14 @@ static void new_aggregated_packet(unsigned char *packet_buff, { struct forw_packet *forw_packet_aggr; unsigned long flags; + /* FIXME: each batman_if will be attached to a softif */ + struct bat_priv *bat_priv = netdev_priv(soft_device);

/* own packet should always be scheduled */ if (!own_packet) { if (!atomic_dec_not_zero(&batman_queue_left)) { - bat_dbg(DBG_BATMAN, "batman packet queue full\n"); + bat_dbg(DBG_BATMAN, bat_priv, + "batman packet queue full\n"); return; } } diff --git a/drivers/staging/batman-adv/bat_debugfs.c b/drivers/staging/batman-adv/bat_debugfs.c index fafca9f..f818d5e 100644 --- a/drivers/staging/batman-adv/bat_debugfs.c +++ b/drivers/staging/batman-adv/bat_debugfs.c @@ -31,6 +31,193 @@

static struct dentry *bat_debugfs;

+#ifdef CONFIG_BATMAN_ADV_DEBUG +#define LOG_BUFF_MASK (log_buff_len-1) +#define LOG_BUFF(idx) (debug_log->log_buff[(idx) & LOG_BUFF_MASK]) + +static int log_buff_len = LOG_BUF_LEN; + +static void emit_log_char(struct debug_log *debug_log, char c) +{ + LOG_BUFF(debug_log->log_end) = c; + debug_log->log_end++; + + if (debug_log->log_end - debug_log->log_start > log_buff_len) + debug_log->log_start = debug_log->log_end - log_buff_len; +} + +static int fdebug_log(struct debug_log *debug_log, char *fmt, ...) +{ + int printed_len; + va_list args; + static char debug_log_buf[256]; + char *p; + unsigned long flags; + + if (!debug_log) + return 0; + + spin_lock_irqsave(&debug_log->lock, flags); + va_start(args, fmt); + printed_len = vscnprintf(debug_log_buf, sizeof(debug_log_buf), + fmt, args); + va_end(args); + + for (p = debug_log_buf; *p != 0; p++) + emit_log_char(debug_log, *p); + + spin_unlock_irqrestore(&debug_log->lock, flags); + + wake_up(&debug_log->queue_wait); + + return 0; +} + +int debug_log(struct bat_priv *bat_priv, char *fmt, ...) +{ + va_list args; + char tmp_log_buf[256]; + + va_start(args, fmt); + vscnprintf(tmp_log_buf, sizeof(tmp_log_buf), fmt, args); + fdebug_log(bat_priv->debug_log, "[%10u] %s", + (jiffies / HZ), tmp_log_buf); + va_end(args); + + return 0; +} + +static int log_open(struct inode *inode, struct file *file) +{ + file->private_data = inode->i_private; + inc_module_count(); + return 0; +} + +static int log_release(struct inode *inode, struct file *file) +{ + dec_module_count(); + return 0; +} + +static ssize_t log_read(struct file *file, char __user *buf, + size_t count, loff_t *ppos) +{ + struct bat_priv *bat_priv = (struct bat_priv *)file->private_data; + struct debug_log *debug_log = bat_priv->debug_log; + int error, i = 0; + char c; + unsigned long flags; + + if ((file->f_flags & O_NONBLOCK) && + !(debug_log->log_end - debug_log->log_start)) + return -EAGAIN; + + if ((!buf) || (count < 0)) + return -EINVAL; + + if (count == 0) + return 0; + + if (!access_ok(VERIFY_WRITE, buf, count)) + return -EFAULT; + + error = wait_event_interruptible(debug_log->queue_wait, + (debug_log->log_start - debug_log->log_end)); + + if (error) + return error; + + spin_lock_irqsave(&debug_log->lock, flags); + + while ((!error) && (i < count) && + (debug_log->log_start != debug_log->log_end)) { + c = LOG_BUFF(debug_log->log_start); + + debug_log->log_start++; + + spin_unlock_irqrestore(&debug_log->lock, flags); + + error = __put_user(c, buf); + + spin_lock_irqsave(&debug_log->lock, flags); + + buf++; + i++; + + } + + spin_unlock_irqrestore(&debug_log->lock, flags); + + if (!error) + return i; + + return error; +} + +static unsigned int log_poll(struct file *file, poll_table *wait) +{ + struct bat_priv *bat_priv = (struct bat_priv *)file->private_data; + struct debug_log *debug_log = bat_priv->debug_log; + + poll_wait(file, &debug_log->queue_wait, wait); + + if (debug_log->log_end - debug_log->log_start) + return POLLIN | POLLRDNORM; + + return 0; +} + +static const struct file_operations log_fops = { + .open = log_open, + .release = log_release, + .read = log_read, + .poll = log_poll, +}; + +static int debug_log_setup(struct bat_priv *bat_priv) +{ + struct dentry *d; + + if (!bat_priv->debug_dir) + goto err; + + bat_priv->debug_log = kzalloc(sizeof(struct debug_log), GFP_ATOMIC); + if (!bat_priv->debug_log) + goto err; + + spin_lock_init(&bat_priv->debug_log->lock); + init_waitqueue_head(&bat_priv->debug_log->queue_wait); + + d = debugfs_create_file("log", S_IFREG | S_IRUSR, + bat_priv->debug_dir, bat_priv, &log_fops); + if (d) + goto err; + + return 0; + +err: + return 1; +} + +static void debug_log_cleanup(struct bat_priv *bat_priv) +{ + kfree(bat_priv->debug_log); + bat_priv->debug_log = NULL; +} +#else /* CONFIG_BATMAN_ADV_DEBUG */ +static int debug_log_setup(struct bat_priv *bat_priv) +{ + bat_priv->debug_log = NULL; + return 0; +} + +static void debug_log_cleanup(struct bat_priv *bat_priv) +{ + return; +} +#endif + static int originators_open(struct inode *inode, struct file *file) { struct net_device *net_dev = (struct net_device *)inode->i_private; @@ -114,6 +301,7 @@ int debugfs_add_meshif(struct net_device *dev) goto out;

bat_socket_setup(bat_priv); + debug_log_setup(bat_priv);

for (bat_debug = mesh_debuginfos; *bat_debug; ++bat_debug) { file = debugfs_create_file(((*bat_debug)->attr).name, @@ -143,6 +331,8 @@ void debugfs_del_meshif(struct net_device *dev) { struct bat_priv *bat_priv = netdev_priv(dev);

+ debug_log_cleanup(bat_priv); + if (bat_debugfs) { debugfs_remove_recursive(bat_priv->debug_dir); bat_priv->debug_dir = NULL; diff --git a/drivers/staging/batman-adv/bat_sysfs.c b/drivers/staging/batman-adv/bat_sysfs.c index 4e9c71d..65e1465 100644 --- a/drivers/staging/batman-adv/bat_sysfs.c +++ b/drivers/staging/batman-adv/bat_sysfs.c @@ -229,18 +229,70 @@ static ssize_t store_orig_interval(struct kobject *kobj, struct attribute *attr, return count; }

+#ifdef CONFIG_BATMAN_ADV_DEBUG +static ssize_t show_log_level(struct kobject *kobj, struct attribute *attr, + char *buff) +{ + struct device *dev = to_dev(kobj->parent); + struct bat_priv *bat_priv = netdev_priv(to_net_dev(dev)); + int log_level = atomic_read(&bat_priv->log_level); + + return sprintf(buff, "%d\n", log_level); +} + +static ssize_t store_log_level(struct kobject *kobj, struct attribute *attr, + char *buff, size_t count) +{ + struct device *dev = to_dev(kobj->parent); + struct net_device *net_dev = to_net_dev(dev); + struct bat_priv *bat_priv = netdev_priv(net_dev); + unsigned long log_level_tmp; + int ret; + + ret = strict_strtoul(buff, 10, &log_level_tmp); + if (ret) { + printk(KERN_INFO "batman-adv:Invalid parameter for 'log_level' setting on mesh %s received: %s\n", + net_dev->name, buff); + return -EINVAL; + } + + if (log_level_tmp > 3) { + printk(KERN_INFO "batman-adv:New log level too big: %li (max: %i)\n", + log_level_tmp, 3); + return -EINVAL; + } + + if (atomic_read(&bat_priv->log_level) == log_level_tmp) + return count; + + printk(KERN_INFO + "batman-adv:Changing log level from: %i to: %li on mesh: %s\n", + atomic_read(&bat_priv->log_level), + log_level_tmp, net_dev->name); + + atomic_set(&bat_priv->log_level, (unsigned)log_level_tmp); + return count; +} +#endif + static BAT_ATTR(aggregated_ogms, S_IRUGO | S_IWUSR, show_aggr_ogms, store_aggr_ogms); static BAT_ATTR(bonding, S_IRUGO | S_IWUSR, show_bond, store_bond); static BAT_ATTR(vis_mode, S_IRUGO | S_IWUSR, show_vis_mode, store_vis_mode); static BAT_ATTR(orig_interval, S_IRUGO | S_IWUSR, show_orig_interval, store_orig_interval); +#ifdef CONFIG_BATMAN_ADV_DEBUG +static BAT_ATTR(log_level, S_IRUGO | S_IWUSR, show_log_level, store_log_level); +#endif

static struct bat_attribute *mesh_attrs[] = { &bat_attr_aggregated_ogms, &bat_attr_bonding, &bat_attr_vis_mode, &bat_attr_orig_interval, +#ifdef CONFIG_BATMAN_ADV_DEBUG + &bat_attr_log_level, +#endif NULL, };

@@ -257,6 +309,8 @@ int sysfs_add_meshif(struct net_device *dev) atomic_set(&bat_priv->bonding_enabled, 0); atomic_set(&bat_priv->vis_mode, VIS_TYPE_CLIENT_UPDATE); atomic_set(&bat_priv->orig_interval, 1000); + atomic_set(&bat_priv->log_level, 0); + bat_priv->primary_if = NULL; bat_priv->num_ifaces = 0;

diff --git a/drivers/staging/batman-adv/bitarray.c b/drivers/staging/batman-adv/bitarray.c index c10fe03..dd4193c 100644 --- a/drivers/staging/batman-adv/bitarray.c +++ b/drivers/staging/batman-adv/bitarray.c @@ -128,6 +128,9 @@ static void bit_reset_window(TYPE_OF_WORD *seq_bits) char bit_get_packet(TYPE_OF_WORD *seq_bits, int32_t seq_num_diff, int8_t set_mark) { + /* FIXME: each orig_node->batman_if will be attached to a softif */ + struct bat_priv *bat_priv = netdev_priv(soft_device); + /* sequence number is slightly older. We already got a sequence number * higher than this one, so we just mark it. */

@@ -152,7 +155,7 @@ char bit_get_packet(TYPE_OF_WORD *seq_bits, int32_t seq_num_diff,

if ((seq_num_diff >= TQ_LOCAL_WINDOW_SIZE) || (seq_num_diff < EXPECTED_SEQNO_RANGE)) { - bat_dbg(DBG_BATMAN, + bat_dbg(DBG_BATMAN, bat_priv, "We missed a lot of packets (%i) !\n", seq_num_diff - 1); bit_reset_window(seq_bits); @@ -169,7 +172,7 @@ char bit_get_packet(TYPE_OF_WORD *seq_bits, int32_t seq_num_diff, if ((seq_num_diff <= -TQ_LOCAL_WINDOW_SIZE) || (seq_num_diff >= EXPECTED_SEQNO_RANGE)) {

- bat_dbg(DBG_BATMAN, + bat_dbg(DBG_BATMAN, bat_priv, "Other host probably restarted!\n");

bit_reset_window(seq_bits); diff --git a/drivers/staging/batman-adv/hard-interface.c b/drivers/staging/batman-adv/hard-interface.c index ba7ddfc..b5a0f1b 100644 --- a/drivers/staging/batman-adv/hard-interface.c +++ b/drivers/staging/batman-adv/hard-interface.c @@ -443,6 +443,8 @@ static int batman_skb_recv_finish(struct sk_buff *skb) int batman_skb_recv(struct sk_buff *skb, struct net_device *dev, struct packet_type *ptype, struct net_device *orig_dev) { + /* FIXME: each orig_node->batman_if will be attached to a softif */ + struct bat_priv *bat_priv = netdev_priv(soft_device); struct batman_packet *batman_packet; struct batman_if *batman_if; struct net_device_stats *stats; @@ -490,7 +492,7 @@ int batman_skb_recv(struct sk_buff *skb, struct net_device *dev, batman_packet = (struct batman_packet *)skb->data;

if (batman_packet->version != COMPAT_VERSION) { - bat_dbg(DBG_BATMAN, + bat_dbg(DBG_BATMAN, bat_priv, "Drop packet: incompatible batman version (%i)\n", batman_packet->version); goto err_free; diff --git a/drivers/staging/batman-adv/icmp_socket.c b/drivers/staging/batman-adv/icmp_socket.c index 08a5f7b..eea4ed7 100644 --- a/drivers/staging/batman-adv/icmp_socket.c +++ b/drivers/staging/batman-adv/icmp_socket.c @@ -154,6 +154,8 @@ static ssize_t bat_socket_read(struct file *file, char __user *buf, static ssize_t bat_socket_write(struct file *file, const char __user *buff, size_t len, loff_t *off) { + /* FIXME: each orig_node->batman_if will be attached to a softif */ + struct bat_priv *bat_priv = netdev_priv(soft_device); struct socket_client *socket_client = (struct socket_client *)file->private_data; struct icmp_packet_rr icmp_packet; @@ -164,7 +166,7 @@ static ssize_t bat_socket_write(struct file *file, const char __user *buff, unsigned long flags;

if (len < sizeof(struct icmp_packet)) { - bat_dbg(DBG_BATMAN, "batman-adv:" + bat_dbg(DBG_BATMAN, bat_priv, "Error - can't send packet from char device: " "invalid packet size\n"); return -EINVAL; @@ -180,14 +182,14 @@ static ssize_t bat_socket_write(struct file *file, const char __user *buff, return -EFAULT;

if (icmp_packet.packet_type != BAT_ICMP) { - bat_dbg(DBG_BATMAN, "batman-adv:" + bat_dbg(DBG_BATMAN, bat_priv, "Error - can't send packet from char device: " "got bogus packet type (expected: BAT_ICMP)\n"); return -EINVAL; }

if (icmp_packet.msg_type != ECHO_REQUEST) { - bat_dbg(DBG_BATMAN, "batman-adv:" + bat_dbg(DBG_BATMAN, bat_priv, "Error - can't send packet from char device: " "got bogus message type (expected: ECHO_REQUEST)\n"); return -EINVAL; diff --git a/drivers/staging/batman-adv/main.c b/drivers/staging/batman-adv/main.c index d7e2960..5477d42 100644 --- a/drivers/staging/batman-adv/main.c +++ b/drivers/staging/batman-adv/main.c @@ -59,17 +59,6 @@ static struct packet_type batman_adv_packet_type __read_mostly = {

struct workqueue_struct *bat_event_workqueue;

-#ifdef CONFIG_BATMAN_ADV_DEBUG -int debug; - -module_param(debug, int, 0644); - -int bat_debug_type(int type) -{ - return debug & type; -} -#endif - int init_module(void) { int retval; diff --git a/drivers/staging/batman-adv/main.h b/drivers/staging/batman-adv/main.h index e308673..dc42d44 100644 --- a/drivers/staging/batman-adv/main.h +++ b/drivers/staging/batman-adv/main.h @@ -91,20 +91,8 @@ * broadcasting / etc */ #define DBG_ROUTES 2 /* route or hna added / changed / deleted */

-#ifdef CONFIG_BATMAN_ADV_DEBUG -extern int debug; +#define LOG_BUF_LEN 8192 /* has to be a power of 2 */

-extern int bat_debug_type(int type); -#define bat_dbg(type, fmt, arg...) do { \ - if (bat_debug_type(type)) \ - printk(KERN_DEBUG "batman-adv:" fmt, ## arg); \ - } \ - while (0) -#else /* !CONFIG_BATMAN_ADV_DEBUG */ -#define bat_dbg(type, fmt, arg...) do { \ - } \ - while (0) -#endif

/* * Vis @@ -166,4 +154,21 @@ int is_my_mac(uint8_t *addr); int is_bcast(uint8_t *addr); int is_mcast(uint8_t *addr);

+#ifdef CONFIG_BATMAN_ADV_DEBUG +extern int debug_log(struct bat_priv *bat_priv, char *fmt, ...); + +#define bat_dbg(type, bat_priv, fmt, arg...) \ + do { \ + if (atomic_read(&bat_priv->log_level) & type) \ + debug_log(bat_priv, fmt, ## arg); \ + } \ + while (0) +#else /* !CONFIG_BATMAN_ADV_DEBUG */ +static inline void bat_dbg(char type __attribute__((unused)), + struct bat_priv *bat_priv __attribute__((unused)), + char *fmt __attribute__((unused)), ...) +{ +} +#endif + #endif /* _NET_BATMAN_ADV_MAIN_H_ */ diff --git a/drivers/staging/batman-adv/originator.c b/drivers/staging/batman-adv/originator.c index 26bbf2d..3febdb8 100644 --- a/drivers/staging/batman-adv/originator.c +++ b/drivers/staging/batman-adv/originator.c @@ -60,9 +60,12 @@ struct neigh_node * create_neighbor(struct orig_node *orig_node, struct orig_node *orig_neigh_node, uint8_t *neigh, struct batman_if *if_incoming) { + /* FIXME: each orig_node->batman_if will be attached to a softif */ + struct bat_priv *bat_priv = netdev_priv(soft_device); struct neigh_node *neigh_node;

- bat_dbg(DBG_BATMAN, "Creating new last-hop neighbor of originator\n"); + bat_dbg(DBG_BATMAN, bat_priv, + "Creating new last-hop neighbor of originator\n");

neigh_node = kzalloc(sizeof(struct neigh_node), GFP_ATOMIC); if (!neigh_node) @@ -129,7 +132,8 @@ struct orig_node *get_orig_node(uint8_t *addr) if (orig_node != NULL) return orig_node;

- bat_dbg(DBG_BATMAN, "Creating new originator: %pM\n", addr); + bat_dbg(DBG_BATMAN, bat_priv, + "Creating new originator: %pM\n", addr);

orig_node = kzalloc(sizeof(struct orig_node), GFP_ATOMIC); if (!orig_node) @@ -182,6 +186,8 @@ free_orig_node: static bool purge_orig_neighbors(struct orig_node *orig_node, struct neigh_node **best_neigh_node) { + /* FIXME: each orig_node->batman_if will be attached to a softif */ + struct bat_priv *bat_priv = netdev_priv(soft_device); struct list_head *list_pos, *list_pos_tmp; struct neigh_node *neigh_node; bool neigh_purged = false; @@ -199,13 +205,13 @@ static bool purge_orig_neighbors(struct orig_node *orig_node,

if (neigh_node->if_incoming->if_status == IF_TO_BE_REMOVED) - bat_dbg(DBG_BATMAN, + bat_dbg(DBG_BATMAN, bat_priv, "neighbor purge: originator %pM, " "neighbor: %pM, iface: %s\n", orig_node->orig, neigh_node->addr, neigh_node->if_incoming->dev); else - bat_dbg(DBG_BATMAN, + bat_dbg(DBG_BATMAN, bat_priv, "neighbor timeout: originator %pM, " "neighbor: %pM, last_valid: %lu\n", orig_node->orig, neigh_node->addr, @@ -232,7 +238,7 @@ static bool purge_orig_node(struct orig_node *orig_node) if (time_after(jiffies, orig_node->last_valid + 2 * PURGE_TIMEOUT * HZ)) {

- bat_dbg(DBG_BATMAN, + bat_dbg(DBG_BATMAN, bat_priv, "Originator timeout: originator %pM, last_valid %lu\n", orig_node->orig, (orig_node->last_valid / HZ)); return true; diff --git a/drivers/staging/batman-adv/routing.c b/drivers/staging/batman-adv/routing.c index 127cfbf..418ae09 100644 --- a/drivers/staging/batman-adv/routing.c +++ b/drivers/staging/batman-adv/routing.c @@ -77,24 +77,27 @@ static void update_route(struct orig_node *orig_node, struct neigh_node *neigh_node, unsigned char *hna_buff, int hna_buff_len) { + /* FIXME: each orig_node->batman_if will be attached to a softif */ + struct bat_priv *bat_priv = netdev_priv(soft_device); + /* route deleted */ if ((orig_node->router != NULL) && (neigh_node == NULL)) {

- bat_dbg(DBG_ROUTES, "Deleting route towards: %pM\n", + bat_dbg(DBG_ROUTES, bat_priv, "Deleting route towards: %pM\n", orig_node->orig); hna_global_del_orig(orig_node, "originator timed out");

/* route added */ } else if ((orig_node->router == NULL) && (neigh_node != NULL)) {

- bat_dbg(DBG_ROUTES, + bat_dbg(DBG_ROUTES, bat_priv, "Adding route towards: %pM (via %pM)\n", orig_node->orig, neigh_node->addr); hna_global_add_orig(orig_node, hna_buff, hna_buff_len);

/* route changed */ } else { - bat_dbg(DBG_ROUTES, + bat_dbg(DBG_ROUTES, bat_priv, "Changing route towards: %pM " "(now via %pM - was via %pM)\n", orig_node->orig, neigh_node->addr, @@ -125,6 +128,8 @@ static int is_bidirectional_neigh(struct orig_node *orig_node, struct batman_packet *batman_packet, struct batman_if *if_incoming) { + /* FIXME: each orig_node->batman_if will be attached to a softif */ + struct bat_priv *bat_priv = netdev_priv(soft_device); struct neigh_node *neigh_node = NULL, *tmp_neigh_node = NULL; unsigned char total_count;

@@ -211,7 +216,7 @@ static int is_bidirectional_neigh(struct orig_node *orig_node, orig_neigh_node->tq_asym_penalty) / (TQ_MAX_VALUE * TQ_MAX_VALUE));

- bat_dbg(DBG_BATMAN, + bat_dbg(DBG_BATMAN, bat_priv, "bidirectional: " "orig = %-15pM neigh = %-15pM => own_bcast = %2i, " "real recv = %2i, local tq: %3i, asym_penalty: %3i, " @@ -234,10 +239,12 @@ static void update_orig(struct orig_node *orig_node, struct ethhdr *ethhdr, unsigned char *hna_buff, int hna_buff_len, char is_duplicate) { + /* FIXME: get bat_priv */ + struct bat_priv *bat_priv = netdev_priv(soft_device); struct neigh_node *neigh_node = NULL, *tmp_neigh_node = NULL; int tmp_hna_buff_len;

- bat_dbg(DBG_BATMAN, "update_originator(): " + bat_dbg(DBG_BATMAN, bat_priv, "update_originator(): " "Searching and updating originator entry of received packet\n");

list_for_each_entry(tmp_neigh_node, &orig_node->neigh_list, list) { @@ -269,7 +276,7 @@ static void update_orig(struct orig_node *orig_node, struct ethhdr *ethhdr, if (!neigh_node) return; } else - bat_dbg(DBG_BATMAN, + bat_dbg(DBG_BATMAN, bat_priv, "Updating existing last-hop neighbor of originator\n");

orig_node->flags = batman_packet->flags; @@ -321,13 +328,16 @@ update_hna: static int window_protected(int32_t seq_num_diff, unsigned long *last_reset) { + /* FIXME: each orig_node->batman_if will be attached to a softif */ + struct bat_priv *bat_priv = netdev_priv(soft_device); + if ((seq_num_diff <= -TQ_LOCAL_WINDOW_SIZE) || (seq_num_diff >= EXPECTED_SEQNO_RANGE)) { if (time_after(jiffies, *last_reset + msecs_to_jiffies(RESET_PROTECTION_MS))) {

*last_reset = jiffies; - bat_dbg(DBG_BATMAN, + bat_dbg(DBG_BATMAN, bat_priv, "old packet received, start protection\n");

return 0; @@ -349,6 +359,8 @@ static char count_real_packets(struct ethhdr *ethhdr, struct batman_packet *batman_packet, struct batman_if *if_incoming) { + /* FIXME: each orig_node->batman_if will be attached to a softif */ + struct bat_priv *bat_priv = netdev_priv(soft_device); struct orig_node *orig_node; struct neigh_node *tmp_neigh_node; char is_duplicate = 0; @@ -387,7 +399,8 @@ static char count_real_packets(struct ethhdr *ethhdr, }

if (need_update) { - bat_dbg(DBG_BATMAN, "updating last_seqno: old %d, new %d\n", + bat_dbg(DBG_BATMAN, bat_priv, + "updating last_seqno: old %d, new %d\n", orig_node->last_real_seqno, batman_packet->seqno); orig_node->last_real_seqno = batman_packet->seqno; } @@ -540,7 +553,8 @@ void receive_bat_packet(struct ethhdr *ethhdr, is_single_hop_neigh = (compare_orig(ethhdr->h_source, batman_packet->orig) ? 1 : 0);

- bat_dbg(DBG_BATMAN, "Received BATMAN packet via NB: %pM, IF: %s [%s] " + bat_dbg(DBG_BATMAN, bat_priv, + "Received BATMAN packet via NB: %pM, IF: %s [%s] " "(from OG: %pM, via prev OG: %pM, seqno %d, tq %d, " "TTL %d, V %d, IDF %d)\n", ethhdr->h_source, if_incoming->dev, if_incoming->addr_str, @@ -569,14 +583,14 @@ void receive_bat_packet(struct ethhdr *ethhdr, }

if (batman_packet->version != COMPAT_VERSION) { - bat_dbg(DBG_BATMAN, + bat_dbg(DBG_BATMAN, bat_priv, "Drop packet: incompatible batman version (%i)\n", batman_packet->version); return; }

if (is_my_addr) { - bat_dbg(DBG_BATMAN, + bat_dbg(DBG_BATMAN, bat_priv, "Drop packet: received my own broadcast (sender: %pM" ")\n", ethhdr->h_source); @@ -584,7 +598,7 @@ void receive_bat_packet(struct ethhdr *ethhdr, }

if (is_broadcast) { - bat_dbg(DBG_BATMAN, "Drop packet: " + bat_dbg(DBG_BATMAN, bat_priv, "Drop packet: " "ignoring all packets with broadcast source addr (sender: %pM" ")\n", ethhdr->h_source); return; @@ -614,13 +628,13 @@ void receive_bat_packet(struct ethhdr *ethhdr, bit_packet_count(word); }

- bat_dbg(DBG_BATMAN, "Drop packet: " + bat_dbg(DBG_BATMAN, bat_priv, "Drop packet: " "originator packet from myself (via neighbor)\n"); return; }

if (is_my_oldorig) { - bat_dbg(DBG_BATMAN, + bat_dbg(DBG_BATMAN, bat_priv, "Drop packet: ignoring all rebroadcast echos (sender: " "%pM)\n", ethhdr->h_source); return; @@ -633,14 +647,14 @@ void receive_bat_packet(struct ethhdr *ethhdr, is_duplicate = count_real_packets(ethhdr, batman_packet, if_incoming);

if (is_duplicate == -1) { - bat_dbg(DBG_BATMAN, + bat_dbg(DBG_BATMAN, bat_priv, "Drop packet: packet within seqno protection time " "(sender: %pM)\n", ethhdr->h_source); return; }

if (batman_packet->tq == 0) { - bat_dbg(DBG_BATMAN, + bat_dbg(DBG_BATMAN, bat_priv, "Drop packet: originator packet with tq equal 0\n"); return; } @@ -653,7 +667,7 @@ void receive_bat_packet(struct ethhdr *ethhdr, !(compare_orig(batman_packet->orig, batman_packet->prev_sender)) && (compare_orig(orig_node->router->addr, orig_node->router->orig_node->router->addr))) { - bat_dbg(DBG_BATMAN, + bat_dbg(DBG_BATMAN, bat_priv, "Drop packet: ignoring all rebroadcast packets that " "may make me loop (sender: %pM)\n", ethhdr->h_source); return; @@ -670,7 +684,8 @@ void receive_bat_packet(struct ethhdr *ethhdr, * don't route towards it */ if (!is_single_hop_neigh && (orig_neigh_node->router == NULL)) { - bat_dbg(DBG_BATMAN, "Drop packet: OGM via unknown neighbor!\n"); + bat_dbg(DBG_BATMAN, bat_priv, + "Drop packet: OGM via unknown neighbor!\n"); return; }

@@ -697,24 +712,25 @@ void receive_bat_packet(struct ethhdr *ethhdr, schedule_forward_packet(orig_node, ethhdr, batman_packet, 1, hna_buff_len, if_incoming);

- bat_dbg(DBG_BATMAN, "Forwarding packet: " + bat_dbg(DBG_BATMAN, bat_priv, "Forwarding packet: " "rebroadcast neighbor packet with direct link flag\n"); return; }

/* multihop originator */ if (!is_bidirectional) { - bat_dbg(DBG_BATMAN, + bat_dbg(DBG_BATMAN, bat_priv, "Drop packet: not received via bidirectional link\n"); return; }

if (is_duplicate) { - bat_dbg(DBG_BATMAN, "Drop packet: duplicate packet received\n"); + bat_dbg(DBG_BATMAN, bat_priv, + "Drop packet: duplicate packet received\n"); return; }

- bat_dbg(DBG_BATMAN, + bat_dbg(DBG_BATMAN, bat_priv, "Forwarding packet: rebroadcast originator packet\n"); schedule_forward_packet(orig_node, ethhdr, batman_packet, 0, hna_buff_len, if_incoming); diff --git a/drivers/staging/batman-adv/send.c b/drivers/staging/batman-adv/send.c index d4b92ef..8e8c0b6 100644 --- a/drivers/staging/batman-adv/send.c +++ b/drivers/staging/batman-adv/send.c @@ -126,6 +126,8 @@ void send_raw_packet(unsigned char *pack_buff, int pack_buff_len, static void send_packet_to_if(struct forw_packet *forw_packet, struct batman_if *batman_if) { + /* FIXME: each batman_if will be attached to a softif */ + struct bat_priv *bat_priv = netdev_priv(soft_device); char *fwd_str; uint8_t packet_num; int16_t buff_pos; @@ -155,7 +157,7 @@ static void send_packet_to_if(struct forw_packet *forw_packet, fwd_str = (packet_num > 0 ? "Forwarding" : (forw_packet->own ? "Sending own" : "Forwarding")); - bat_dbg(DBG_BATMAN, + bat_dbg(DBG_BATMAN, bat_priv, "%s %spacket (originator %pM, seqno %d, TQ %d, TTL %d," " IDF %s) on interface %s [%s]\n", fwd_str, (packet_num > 0 ? "aggregated " : ""), @@ -180,6 +182,8 @@ static void send_packet_to_if(struct forw_packet *forw_packet, /* send a batman packet */ static void send_packet(struct forw_packet *forw_packet) { + /* FIXME: each batman_if will be attached to a softif */ + struct bat_priv *bat_priv = netdev_priv(soft_device); struct batman_if *batman_if; struct batman_packet *batman_packet = (struct batman_packet *)(forw_packet->packet_buff); @@ -200,7 +204,7 @@ static void send_packet(struct forw_packet *forw_packet) (forw_packet->own && (forw_packet->if_incoming->if_num > 0))) {

/* FIXME: what about aggregated packets ? */ - bat_dbg(DBG_BATMAN, + bat_dbg(DBG_BATMAN, bat_priv, "%s packet (originator %pM, seqno %d, TTL %d) " "on interface %s [%s]\n", (forw_packet->own ? "Sending own" : "Forwarding"), @@ -313,7 +317,7 @@ void schedule_forward_packet(struct orig_node *orig_node, unsigned long send_time;

if (batman_packet->ttl <= 1) { - bat_dbg(DBG_BATMAN, "ttl exceeded\n"); + bat_dbg(DBG_BATMAN, bat_priv, "ttl exceeded\n"); return; }

@@ -342,7 +346,8 @@ void schedule_forward_packet(struct orig_node *orig_node, /* apply hop penalty */ batman_packet->tq = hop_penalty(batman_packet->tq);

- bat_dbg(DBG_BATMAN, "Forwarding packet: tq_orig: %i, tq_avg: %i, " + bat_dbg(DBG_BATMAN, bat_priv, + "Forwarding packet: tq_orig: %i, tq_avg: %i, " "tq_forw: %i, ttl_orig: %i, ttl_forw: %i\n", in_tq, tq_avg, batman_packet->tq, in_ttl - 1, batman_packet->ttl); @@ -402,9 +407,11 @@ int add_bcast_packet_to_list(struct sk_buff *skb) { struct forw_packet *forw_packet; struct bcast_packet *bcast_packet; + /* FIXME: each batman_if will be attached to a softif */ + struct bat_priv *bat_priv = netdev_priv(soft_device);

if (!atomic_dec_not_zero(&bcast_queue_left)) { - bat_dbg(DBG_BATMAN, "bcast packet queue full\n"); + bat_dbg(DBG_BATMAN, bat_priv, "bcast packet queue full\n"); goto out; }

@@ -516,15 +523,19 @@ out:

void purge_outstanding_packets(struct batman_if *batman_if) { + /* FIXME: each batman_if will be attached to a softif */ + struct bat_priv *bat_priv = netdev_priv(soft_device); struct forw_packet *forw_packet; struct hlist_node *tmp_node, *safe_tmp_node; unsigned long flags;

if (batman_if) - bat_dbg(DBG_BATMAN, "purge_outstanding_packets(): %s\n", + bat_dbg(DBG_BATMAN, bat_priv, + "purge_outstanding_packets(): %s\n", batman_if->dev); else - bat_dbg(DBG_BATMAN, "purge_outstanding_packets()\n"); + bat_dbg(DBG_BATMAN, bat_priv, + "purge_outstanding_packets()\n");

/* free bcast list */ spin_lock_irqsave(&forw_bcast_list_lock, flags); diff --git a/drivers/staging/batman-adv/translation-table.c b/drivers/staging/batman-adv/translation-table.c index 9e3c845..992fc7c 100644 --- a/drivers/staging/batman-adv/translation-table.c +++ b/drivers/staging/batman-adv/translation-table.c @@ -60,6 +60,8 @@ int hna_local_init(void)

void hna_local_add(uint8_t *addr) { + /* FIXME: each orig_node->batman_if will be attached to a softif */ + struct bat_priv *bat_priv = netdev_priv(soft_device); struct hna_local_entry *hna_local_entry; struct hna_global_entry *hna_global_entry; struct hashtable_t *swaphash; @@ -80,15 +82,15 @@ void hna_local_add(uint8_t *addr) MAC-flooding. */ if ((num_hna + 1 > (ETH_DATA_LEN - BAT_PACKET_LEN) / ETH_ALEN) || (num_hna + 1 > 255)) { - bat_dbg(DBG_ROUTES, + bat_dbg(DBG_ROUTES, bat_priv, "Can't add new local hna entry (%pM): " "number of local hna entries exceeds packet size\n", addr); return; }

- bat_dbg(DBG_ROUTES, "Creating new local hna entry: %pM\n", - addr); + bat_dbg(DBG_ROUTES, bat_priv, + "Creating new local hna entry: %pM\n", addr);

hna_local_entry = kmalloc(sizeof(struct hna_local_entry), GFP_ATOMIC); if (!hna_local_entry) @@ -223,7 +225,9 @@ static void _hna_local_del(void *data) static void hna_local_del(struct hna_local_entry *hna_local_entry, char *message) { - bat_dbg(DBG_ROUTES, "Deleting local hna entry (%pM): %s\n", + /* FIXME: each orig_node->batman_if will be attached to a softif */ + struct bat_priv *bat_priv = netdev_priv(soft_device); + bat_dbg(DBG_ROUTES, bat_priv, "Deleting local hna entry (%pM): %s\n", hna_local_entry->addr, message);

hash_remove(hna_local_hash, hna_local_entry->addr); @@ -293,6 +297,8 @@ int hna_global_init(void) void hna_global_add_orig(struct orig_node *orig_node, unsigned char *hna_buff, int hna_buff_len) { + /* FIXME: each orig_node->batman_if will be attached to a softif */ + struct bat_priv *bat_priv = netdev_priv(soft_device); struct hna_global_entry *hna_global_entry; struct hna_local_entry *hna_local_entry; struct hashtable_t *swaphash; @@ -319,7 +325,7 @@ void hna_global_add_orig(struct orig_node *orig_node,

memcpy(hna_global_entry->addr, hna_ptr, ETH_ALEN);

- bat_dbg(DBG_ROUTES, + bat_dbg(DBG_ROUTES, bat_priv, "Creating new global hna entry: " "%pM (via %pM)\n", hna_global_entry->addr, orig_node->orig); @@ -428,7 +434,10 @@ int hna_global_seq_print_text(struct seq_file *seq, void *offset) static void _hna_global_del_orig(struct hna_global_entry *hna_global_entry, char *message) { - bat_dbg(DBG_ROUTES, "Deleting global hna entry %pM (via %pM): %s\n", + /* FIXME: each orig_node->batman_if will be attached to a softif */ + struct bat_priv *bat_priv = netdev_priv(soft_device); + bat_dbg(DBG_ROUTES, bat_priv, + "Deleting global hna entry %pM (via %pM): %s\n", hna_global_entry->addr, hna_global_entry->orig_node->orig, message);

diff --git a/drivers/staging/batman-adv/types.h b/drivers/staging/batman-adv/types.h index 82602d0..21d0717 100644 --- a/drivers/staging/batman-adv/types.h +++ b/drivers/staging/batman-adv/types.h @@ -21,8 +21,6 @@

- - #ifndef _NET_BATMAN_ADV_TYPES_H_ #define _NET_BATMAN_ADV_TYPES_H_

@@ -114,7 +112,9 @@ struct bat_priv { atomic_t bonding_enabled; atomic_t vis_mode; atomic_t orig_interval; + atomic_t log_level; char num_ifaces; + struct debug_log *debug_log; struct batman_if *primary_if; struct kobject *mesh_obj; struct dentry *debug_dir; @@ -172,4 +172,12 @@ struct if_list_entry { struct hlist_node list; };

+struct debug_log { + char log_buff[LOG_BUF_LEN]; + unsigned long log_start; + unsigned long log_end; + spinlock_t lock; + wait_queue_head_t queue_wait; +}; + #endif /* _NET_BATMAN_ADV_TYPES_H_ */