diff options
Diffstat (limited to 'net/batman-adv/gateway_common.c')
| -rw-r--r-- | net/batman-adv/gateway_common.c | 162 |
1 files changed, 1 insertions, 161 deletions
diff --git a/net/batman-adv/gateway_common.c b/net/batman-adv/gateway_common.c index 6a964a773f57..2dd36ef03c84 100644 --- a/net/batman-adv/gateway_common.c +++ b/net/batman-adv/gateway_common.c @@ -9,124 +9,15 @@ #include <linux/atomic.h> #include <linux/byteorder/generic.h> -#include <linux/errno.h> -#include <linux/kstrtox.h> -#include <linux/limits.h> -#include <linux/math64.h> -#include <linux/netdevice.h> #include <linux/stddef.h> -#include <linux/string.h> +#include <linux/types.h> #include <uapi/linux/batadv_packet.h> #include <uapi/linux/batman_adv.h> #include "gateway_client.h" -#include "log.h" #include "tvlv.h" /** - * batadv_parse_throughput() - parse supplied string buffer to extract - * throughput information - * @net_dev: the soft interface net device - * @buff: string buffer to parse - * @description: text shown when throughput string cannot be parsed - * @throughput: pointer holding the returned throughput information - * - * Return: false on parse error and true otherwise. - */ -bool batadv_parse_throughput(struct net_device *net_dev, char *buff, - const char *description, u32 *throughput) -{ - enum batadv_bandwidth_units bw_unit_type = BATADV_BW_UNIT_KBIT; - u64 lthroughput; - char *tmp_ptr; - int ret; - - if (strlen(buff) > 4) { - tmp_ptr = buff + strlen(buff) - 4; - - if (strncasecmp(tmp_ptr, "mbit", 4) == 0) - bw_unit_type = BATADV_BW_UNIT_MBIT; - - if (strncasecmp(tmp_ptr, "kbit", 4) == 0 || - bw_unit_type == BATADV_BW_UNIT_MBIT) - *tmp_ptr = '\0'; - } - - ret = kstrtou64(buff, 10, <hroughput); - if (ret) { - batadv_err(net_dev, - "Invalid throughput speed for %s: %s\n", - description, buff); - return false; - } - - switch (bw_unit_type) { - case BATADV_BW_UNIT_MBIT: - /* prevent overflow */ - if (U64_MAX / 10 < lthroughput) { - batadv_err(net_dev, - "Throughput speed for %s too large: %s\n", - description, buff); - return false; - } - - lthroughput *= 10; - break; - case BATADV_BW_UNIT_KBIT: - default: - lthroughput = div_u64(lthroughput, 100); - break; - } - - if (lthroughput > U32_MAX) { - batadv_err(net_dev, - "Throughput speed for %s too large: %s\n", - description, buff); - return false; - } - - *throughput = lthroughput; - - return true; -} - -/** - * batadv_parse_gw_bandwidth() - parse supplied string buffer to extract - * download and upload bandwidth information - * @net_dev: the soft interface net device - * @buff: string buffer to parse - * @down: pointer holding the returned download bandwidth information - * @up: pointer holding the returned upload bandwidth information - * - * Return: false on parse error and true otherwise. - */ -static bool batadv_parse_gw_bandwidth(struct net_device *net_dev, char *buff, - u32 *down, u32 *up) -{ - char *slash_ptr; - bool ret; - - slash_ptr = strchr(buff, '/'); - if (slash_ptr) - *slash_ptr = 0; - - ret = batadv_parse_throughput(net_dev, buff, "download gateway speed", - down); - if (!ret) - return false; - - /* we also got some upload info */ - if (slash_ptr) { - ret = batadv_parse_throughput(net_dev, slash_ptr + 1, - "upload gateway speed", up); - if (!ret) - return false; - } - - return true; -} - -/** * batadv_gw_tvlv_container_update() - update the gw tvlv container after * gateway setting change * @bat_priv: the bat priv with all the soft interface information @@ -156,57 +47,6 @@ void batadv_gw_tvlv_container_update(struct batadv_priv *bat_priv) } /** - * batadv_gw_bandwidth_set() - Parse and set download/upload gateway bandwidth - * from supplied string buffer - * @net_dev: netdev struct of the soft interface - * @buff: the buffer containing the user data - * @count: number of bytes in the buffer - * - * Return: 'count' on success or a negative error code in case of failure - */ -ssize_t batadv_gw_bandwidth_set(struct net_device *net_dev, char *buff, - size_t count) -{ - struct batadv_priv *bat_priv = netdev_priv(net_dev); - u32 down_curr; - u32 up_curr; - u32 down_new = 0; - u32 up_new = 0; - bool ret; - - down_curr = (unsigned int)atomic_read(&bat_priv->gw.bandwidth_down); - up_curr = (unsigned int)atomic_read(&bat_priv->gw.bandwidth_up); - - ret = batadv_parse_gw_bandwidth(net_dev, buff, &down_new, &up_new); - if (!ret) - return -EINVAL; - - if (!down_new) - down_new = 1; - - if (!up_new) - up_new = down_new / 5; - - if (!up_new) - up_new = 1; - - if (down_curr == down_new && up_curr == up_new) - return count; - - batadv_gw_reselect(bat_priv); - batadv_info(net_dev, - "Changing gateway bandwidth from: '%u.%u/%u.%u MBit' to: '%u.%u/%u.%u MBit'\n", - down_curr / 10, down_curr % 10, up_curr / 10, up_curr % 10, - down_new / 10, down_new % 10, up_new / 10, up_new % 10); - - atomic_set(&bat_priv->gw.bandwidth_down, down_new); - atomic_set(&bat_priv->gw.bandwidth_up, up_new); - batadv_gw_tvlv_container_update(bat_priv); - - return count; -} - -/** * batadv_gw_tvlv_ogm_handler_v1() - process incoming gateway tvlv container * @bat_priv: the bat priv with all the soft interface information * @orig: the orig_node of the ogm |