skb_get_hash() triggers a (harmless) warn when neither skb->sk or skb->dev is set. In case of nf-generated tcp reset, both sk and dev are NULL: WARNING: .. net/core/flow_dissector.c:1104 [..] skb_flow_dissect_flow_keys include/linux/skbuff.h:1536 [inline] skb_get_hash inclu...
skbuff_fclone_cache : skbuff_head_cache;4243if(sk_memalloc_socks() && (flags &SKB_ALLOC_RX))44gfp_mask |=__GFP_MEMALLOC;4546/*Get the HEAD 从cache上分配, 如果cache上无法分配,则从内存中申请*/47skb = kmem_cache_alloc_node(cache, gfp_ma dev_alloc_skb:分配skb,通常被设备驱动用在中断...
根据其目标决定是流入本机数据还是转发给其他主机，如果是流入本机的数据，则数据会从内核空间进入用户空...
1/*将skb传递到上层*/2staticint__netif_receive_skb_core(structsk_buff *skb,boolpfmemalloc)3{4structpacket_type *ptype, *pt_prev;5rx_handler_func_t *rx_handler;6structnet_device *orig_dev;7booldeliver_exact =false;8intret =NET_RX_DROP;9__be16 type;1011/*记录收包时间,netdev_tstamp...
I have created an invitation controller that is quite vanilla: And I created a link that triggers that request like so: The issue I am having is that when I get thrown into pry in that action, it does...Small differences in SHA1 hashes A project I am working on uses Apache Shiro...
HashMap可以看成做数组和链表结合组成的复合结构,数组被分为一个个桶(bucket),通过哈希值决定了键值对在这个数组的寻址;哈希值相同的键值对,则以链表形式存储,如果链表大小超过阈值(TREEIFY_THRESHOLD,默认 8),链表就会被改造成树形结构(红黑树)。转化成红黑树这一过程叫做树形化 树形化还是扩容? 根据哈希表中元素...
The coordinates are set as the xywh hash on the URL in the order X Offset, Y Offset, Width, Height (e.g. 240p-00001.jpg#xywh=1708,480,427,240 is offset 1708px from the left, 480px from the top and is 427x240px. If you want to include images per frame, this is also possible...
hpwdt i7core_edac edac_core shpchp ext4 jbd2 mbcache sr_mod cdrom sd_mod crc_t10dif qla2xxx scsi_transport_fc scsi_tgt pata_acpi ata_generic ata_piix hpsa radeon ttm drm_kms_helper drm i2c_algo_bit i2c_core dm_mirror dm_region_hash dm_log dm_mod [last unloaded: scsi_wait_scan...
return &ptype_base[ntohs(pt->type) & PTYPE_HASH_MASK]; //否则,挂在ptype_base[type&15]上面,即对应协议的list_head上面。 }好了,上面的可以一带而过了,下面主要看看__netif_receive_skb_core的实现,其实就是对上面注册的结构体packet_type的处理。 此函数主要以下四个功能: 1)处理 ptype_all 上...
[SK_BUFF]: Introduce skb_network_offset() For the quite common 'skb->nh.raw - skb->data' sequence. Signed-off-by: Arnaldo Carvalho de Melo <[EMAIL PROTECTED]> Signed-off-by: David S. Miller <[EMAIL PROTECTED]> --- drivers/isdn/i4l/isdn_net.c | 2 +- drivers/net/atl1/atl1_...