[RFC,3/6] batman-adv: Adds IPv6 to DAT and generic struct in distributed-arp-table.c

  From: Mihail Costea <mihail.costea90@gmail.com>

Adds IPv6 functionality to the generic struct.

Signed-off-by: Mihail Costea <mihail.costea90@gmail.com>
Signed-off-by: Stefan Popa <Stefan.A.Popa@intel.com>
Reviewed-by: Stefan Popa <Stefan.A.Popa@intel.com>

---
 distributed-arp-table.c |   12 +++++++++---
 distributed-arp-table.h |    2 +-
 types.h                 |    6 +++++-
 3 files changed, 15 insertions(+), 5 deletions(-)
  

On Mon, Jul 08, 2013 at 03:12:42AM +0300, mihail.costea2005@gmail.com wrote:
> From: Mihail Costea <mihail.costea90@gmail.com>
> 
> Adds IPv6 functionality to the generic struct.

You can be a bit more verbose here :)
Not everybody will understand what this patch is meant for.

> 
> Signed-off-by: Mihail Costea <mihail.costea90@gmail.com>
> Signed-off-by: Stefan Popa <Stefan.A.Popa@intel.com>
> Reviewed-by: Stefan Popa <Stefan.A.Popa@intel.com>
> 
> ---
>  distributed-arp-table.c |   12 +++++++++---
>  distributed-arp-table.h |    2 +-
>  types.h                 |    6 +++++-
>  3 files changed, 15 insertions(+), 5 deletions(-)
> 
> diff --git a/distributed-arp-table.c b/distributed-arp-table.c
> index b2a4fe5..f941913 100644
> --- a/distributed-arp-table.c
> +++ b/distributed-arp-table.c
> @@ -36,6 +36,12 @@ static struct batadv_dat_type_info batadv_dat_types_info[] = {
>  		.size = sizeof(__be32),
>  		.str_fmt = "%pI4",
>  	},
> +#if IS_ENABLED(CONFIG_IPV6)
> +	{
> +		.size = sizeof(struct in6_addr),
> +		.str_fmt = "%pI6c",
> +	},
> +#endif
>  };
>  
>  static void batadv_dat_purge(struct work_struct *work);
> @@ -845,8 +851,8 @@ int batadv_dat_cache_seq_print_text(struct seq_file *seq, void *offset)
>  		goto out;
>  
>  	seq_printf(seq, "Distributed ARP Table (%s):\n", net_dev->name);
> -	seq_printf(seq, "          %-7s          %-13s %5s\n", "IPv4", "MAC",
> -		   "last-seen");
> +	seq_printf(seq, "                       %-26s %-15s %5s\n",
> +		   "IPv4/IPv6", "MAC", "last-seen");
>  

At this point I'd suggest to switch from "IPv4/IPv6" to "Key".

>  	for (i = 0; i < hash->size; i++) {
>  		head = &hash->table[i];
> @@ -859,7 +865,7 @@ int batadv_dat_cache_seq_print_text(struct seq_file *seq, void *offset)
>  			last_seen_msecs = last_seen_msecs % 60000;
>  			last_seen_secs = last_seen_msecs / 1000;
>  
> -			seq_printf(seq, " * %15s %14pM %6i:%02i\n",
> +			seq_printf(seq, " * %40s %15pM %6i:%02i\n",
>  				   batadv_dat_data_to_str(dat_entry->data,
>  							  dat_entry->type,
>  							  dbg_data,
> diff --git a/distributed-arp-table.h b/distributed-arp-table.h
> index 21d7b24..d029b4b 100644
> --- a/distributed-arp-table.h
> +++ b/distributed-arp-table.h
> @@ -28,7 +28,7 @@
>  #include <linux/if_arp.h>
>  
>  #define BATADV_DAT_ADDR_MAX ((batadv_dat_addr_t)~(batadv_dat_addr_t)0)
> -#define BATADV_DAT_DATA_MAX_LEN 16
> +#define BATADV_DAT_DATA_MAX_LEN 40
>  
>  void batadv_dat_status_update(struct net_device *net_dev);
>  bool batadv_dat_snoop_outgoing_pkt_request(struct batadv_priv *bat_priv,
> diff --git a/types.h b/types.h
> index 69c187e..60d2d64 100644
> --- a/types.h
> +++ b/types.h
> @@ -953,10 +953,14 @@ struct batadv_dat_entry {
>  
>  /**
>   * batadv_dat_types - types used in batadv_dat_entry for IP
> - * @BATADV_DAT_IPv4: IPv4 address type
> + * @BATADV_DAT_IPV4: IPv4 address type

You should use the correct string in the previous patch already (I think you
overlooked the comment while fixing the var names).

> + * @BATADV_DAT_IPV6: IPv6 address type
>   */
>  enum batadv_dat_types {
>  	BATADV_DAT_IPV4 = 0,
> +#if IS_ENABLED(CONFIG_IPV6)
> +	BATADV_DAT_IPV6 = 1,
> +#endif
>  };
>  
>  /**
> -- 
> 1.7.10.4