tcp_timewait_state_process identifier - Linux source code next-20260811

Projects

linux

Versions

FIXME
- FIXME
  - next-20260811

Defined in 1 files as a prototype:

include/net/tcp.h, line 476 (as a prototype)

Defined in 1 files as a function:

net/ipv4/tcp_minisocks.c, line 101 (as a function)

Referenced in 2 files:

Smatch caller information:

net/ipv4/tcp_ipv4.c tcp_v4_rcv() -> tcp_timewait_state_process()

Type	Parameter	Key	Value
PARAM_VALUE	0	tw	4096-ptr_max
PARAM_VALUE	1	skb	4096-ptr_max
PARAM_VALUE	1	skb->_skb_refdst	1-u64max
PARAM_VALUE	1	skb->cb	4096-ptr_max
PARAM_VALUE	1	skb->data->doff	5-15
PARAM_VALUE	1	skb->dev	4096-ptr_max
PARAM_VALUE	1	skb->dev->ethtool_ops->create_rxfh_context	0-s64max
PARAM_VALUE	1	skb->dev->ethtool_ops->get_link_ext_state	0-s64max
PARAM_VALUE	1	skb->dev->ethtool_ops->get_mm_stats	0-s64max
PARAM_VALUE	1	skb->dev->ethtool_ops->modify_rxfh_context	0-s64max
PARAM_VALUE	1	skb->dev->ethtool_ops->remove_rxfh_context	0-s64max
PARAM_VALUE	1	skb->dev->ethtool_ops->rxfh_max_num_contexts	0-4294967295
PARAM_VALUE	1	skb->dev->ethtool_ops->supported_coalesce_params	0-s64max
PARAM_VALUE	1	skb->dev->ip6_ptr->mc_query_work.wq->dfl_pwq	0-s64max
PARAM_VALUE	1	skb->dev->ip6_ptr->mc_query_work.wq->saved_max_active	s32min-s32max
PARAM_VALUE	1	skb->dev->ip6_ptr->mc_query_work.wq->saved_min_active	s32min-s32max
PARAM_VALUE	1	skb->dev->ip6_ptr->mc_report_work.wq->dfl_pwq	0-s64max
PARAM_VALUE	1	skb->dev->ip6_ptr->mc_report_work.wq->saved_max_active	s32min-s32max
PARAM_VALUE	1	skb->dev->ip6_ptr->mc_report_work.wq->saved_min_active	s32min-s32max
PARAM_VALUE	1	skb->dev->ip6_ptr->stats.proc_dir_entry	0,4806605944481423360
PARAM_VALUE	1	skb->dev->linkwatch_dev_tracker->alloc_stack_handle	0-4294967295
PARAM_VALUE	1	skb->dev->linkwatch_dev_tracker->free_stack_handle	0-4294967295
PARAM_VALUE	1	skb->dev->nd_net.net	4096-ptr_max
PARAM_VALUE	1	skb->dev->nd_net.net->ipv4.fqdir->f->frag_expire	0,663510801442193408,1753052602134376448,4007388366431105024,8876081723503042560
PARAM_VALUE	1	skb->dev->nd_net.net->ipv4.fqdir->f->qsize	0,304,320
PARAM_VALUE	1	skb->dev->nd_net.net->mib.tcp_statistics	4096-ptr_max
PARAM_VALUE	1	skb->dev->nd_net.net->mib.tcp_statistics->mibs	4096-ptr_max
PARAM_VALUE	1	skb->dev->ndisc_ops->fill_addr_option	4096-ptr_max
PARAM_VALUE	1	skb->dev->ndisc_ops->parse_options	4096-ptr_max
PARAM_VALUE	1	skb->dev->ndisc_ops->update	4096-ptr_max
PARAM_VALUE	1	skb->dev->rtnl_link_ops->maxtype	0-6,8-10,15,18,20,22,24,34,50
PARAM_VALUE	1	skb->dev->rtnl_link_ops->priv_size	0,8,32,40,48,56,88,112,120,144,160,224,240,256,296,616,624,728,744,1056,1128,1336,1616,2176,2240,2272,2560,3296,3544,3552,9688-u64max
PARAM_VALUE	1	skb->extensions	0
PARAM_VALUE	1	skb->ip_summed	0,2-3
PARAM_VALUE	1	skb->next->sk->ns_tracker->alloc_stack_handle	0-4294967295
PARAM_VALUE	1	skb->next->sk->ns_tracker->dead	0-1
PARAM_VALUE	1	skb->next->sk->ns_tracker->free_stack_handle	0-4294967295
PARAM_VALUE	1	skb->next->sk->sk_peer_cred->process_keyring->user->qnbytes	s32min-s32max
PARAM_VALUE	1	skb->next->sk->sk_peer_cred->process_keyring->user->qnkeys	s32min-s32max
PARAM_VALUE	1	skb->next->sk->sk_peer_cred->request_key_auth->user->qnbytes	s32min-s32max
PARAM_VALUE	1	skb->next->sk->sk_peer_cred->request_key_auth->user->qnkeys	s32min-s32max
PARAM_VALUE	1	skb->next->sk->sk_peer_cred->session_keyring->user->qnbytes	s32min-s32max
PARAM_VALUE	1	skb->next->sk->sk_peer_cred->session_keyring->user->qnkeys	s32min-s32max
PARAM_VALUE	1	skb->next->sk->sk_peer_cred->thread_keyring->user->qnbytes	s32min-s32max
PARAM_VALUE	1	skb->next->sk->sk_peer_cred->thread_keyring->user->qnkeys	s32min-s32max
PARAM_VALUE	1	skb->pkt_type	0
PARAM_VALUE	1	skb->sk->__req_common.skc_flags	0
PARAM_VALUE	1	skb->sk->__req_common.skc_listener	0
PARAM_VALUE	1	skb->sk->__req_common.skc_tw_dr	0
PARAM_VALUE	1	skb->sk->__sk_common.skc_u16hashes	0-u32max
PARAM_VALUE	1	skb->sk->ns_tracker->alloc_stack_handle	0-4294967295
PARAM_VALUE	1	skb->sk->ns_tracker->dead	0-1
PARAM_VALUE	1	skb->sk->ns_tracker->free_stack_handle	0-4294967295
PARAM_VALUE	1	*skb->dev->name	0-255
PARAM_VALUE	2	th	4096-ptr_max
PARAM_VALUE	3	tw_isn	6086690063918841856
PARAM_VALUE	4	drop_reason	7069657898640039936
BUF_SIZE	1	skb	(-1)-s32max
BUF_SIZE	1	skb	(-1)-s32max
BUF_SIZE	2	th	1-s32max
BUF_SIZE	2	th	1-s32max
CAPPED_DATA	1	skb	1
CAPPED_DATA	1	skb->dev->nd_net.net	1
DATA_SOURCE	1	skb	$0
FUZZY_MAX	1	skb->data->doff	5
CONSTRAINT	1	skb	<=49
RX_PATH
TASK_NOT_RUNNING
HOST_DATA	1	skb->csum	0-4294967040[c]
HOST_DATA	1	skb->csum_offset	0-u16max
HOST_DATA	1	skb->next->prev->csum_offset	0-u16max
HOST_DATA	1	skb->next->prev->data_len	0-u32max[c]
HOST_DATA	1	skb->next->prev->len	1-u32max[c]
HOST_DATA	1	skb->next->prev->tstamp	500000002-4294967299794967295[c]
HOST_DATA	1	skb->prev->csum_offset	0-u16max
HOST_DATA	1	skb->prev->data_len	0-u32max[c]
HOST_DATA	1	skb->prev->len	0-u32max[c]
HOST_DATA	1	skb->prev->tstamp	500000002-4294967299794967295[c]
HOST_DATA	1	skb->protocol	1-255
HOST_DATA	1	skb->tstamp	500000002-4294967299794967295[c]
HOST_DATA	1	skb->users.refs.counter	s32min-0,2-s32max
HOST_DATA	1	*skb->data	0-255
USER_DATA	2	th->ack	0-1[u]
USER_DATA	2	th->ack_seq	0-u32max[u]
USER_DATA	2	th->ae	0-1[u]
USER_DATA	2	th->check	0-u16max[u]
USER_DATA	2	th->cwr	0-1[u]
USER_DATA	2	th->dest	0-u16max[u]
USER_DATA	2	th->doff	0-15[u]
USER_DATA	2	th->ece	0-1[u]
USER_DATA	2	th->fin	0-1[u]
USER_DATA	2	th->psh	0-1[u]
USER_DATA	2	th->res1	0-7[u]
USER_DATA	2	th->rst	0-1[u]
USER_DATA	2	th->seq	0-u32max[u]
USER_DATA	2	th->source	0-u16max[u]
USER_DATA	2	th->syn	0-1[u]
USER_DATA	2	th->urg	0-1[u]
USER_DATA	2	th->urg_ptr	0-u16max[u]
USER_DATA	2	th->window	0-u16max[u]
NO_OVERFLOW_SIMPLE	1	skb->data_len
NO_OVERFLOW_SIMPLE	1	skb->dev->group
NO_OVERFLOW_SIMPLE	1	skb->dev->num_tc
NO_OVERFLOW_SIMPLE	1	skb->dev->proto_down
NO_OVERFLOW_SIMPLE	1	skb->dev->real_num_rx_queues
NO_OVERFLOW_SIMPLE	1	skb->dev->real_num_tx_queues
NO_OVERFLOW_SIMPLE	1	skb->dev->stats.rx_bytes
NO_OVERFLOW_SIMPLE	1	skb->dev->stats.tx_bytes
NO_OVERFLOW_SIMPLE	1	skb->dev->tx_queue_len
NO_OVERFLOW_SIMPLE	1	skb->end
NO_OVERFLOW_SIMPLE	1	skb->len
NO_OVERFLOW_SIMPLE	1	skb->next->data_len
NO_OVERFLOW_SIMPLE	1	skb->next->end
NO_OVERFLOW_SIMPLE	1	skb->next->len
NO_OVERFLOW_SIMPLE	1	skb->next->tail
NO_OVERFLOW_SIMPLE	1	skb->next->truesize
NO_OVERFLOW_SIMPLE	1	skb->prev->end
NO_OVERFLOW_SIMPLE	1	skb->prev->len
NO_OVERFLOW_SIMPLE	1	skb->prev->tail
NO_OVERFLOW_SIMPLE	1	skb->prev->truesize
NO_OVERFLOW_SIMPLE	1	skb->sk->sk_backlog.len
NO_OVERFLOW_SIMPLE	1	skb->tail
NO_OVERFLOW_SIMPLE	1	skb->truesize
UNITS	1	skb	unit_byte
UNITS	2	th	unit_byte
USER_PTR	2	th
HALF_LOCKED2		rcu_read

net/ipv6/tcp_ipv6.c tcp_v6_rcv() -> tcp_timewait_state_process()

Type	Parameter	Key	Value
PARAM_VALUE	0	tw	4096-ptr_max
PARAM_VALUE	1	skb	4096-ptr_max
PARAM_VALUE	1	skb->_skb_refdst	1-u64max
PARAM_VALUE	1	skb->cb	4096-ptr_max
PARAM_VALUE	1	skb->data->doff	5-15
PARAM_VALUE	1	skb->dev	4096-ptr_max
PARAM_VALUE	1	skb->dev->ethtool_ops->create_rxfh_context	0-s64max
PARAM_VALUE	1	skb->dev->ethtool_ops->get_link_ext_state	0-s64max
PARAM_VALUE	1	skb->dev->ethtool_ops->get_mm_stats	0-s64max
PARAM_VALUE	1	skb->dev->ethtool_ops->modify_rxfh_context	0-s64max
PARAM_VALUE	1	skb->dev->ethtool_ops->remove_rxfh_context	0-s64max
PARAM_VALUE	1	skb->dev->ethtool_ops->rxfh_max_num_contexts	0-4294967295
PARAM_VALUE	1	skb->dev->ethtool_ops->supported_coalesce_params	0-s64max
PARAM_VALUE	1	skb->dev->ip6_ptr->mc_query_work.wq->dfl_pwq	0-s64max
PARAM_VALUE	1	skb->dev->ip6_ptr->mc_query_work.wq->saved_max_active	s32min-s32max
PARAM_VALUE	1	skb->dev->ip6_ptr->mc_query_work.wq->saved_min_active	s32min-s32max
PARAM_VALUE	1	skb->dev->ip6_ptr->mc_report_work.wq->dfl_pwq	0-s64max
PARAM_VALUE	1	skb->dev->ip6_ptr->mc_report_work.wq->saved_max_active	s32min-s32max
PARAM_VALUE	1	skb->dev->ip6_ptr->mc_report_work.wq->saved_min_active	s32min-s32max
PARAM_VALUE	1	skb->dev->ip6_ptr->stats.proc_dir_entry	0,4806605944481423360
PARAM_VALUE	1	skb->dev->linkwatch_dev_tracker->alloc_stack_handle	0-4294967295
PARAM_VALUE	1	skb->dev->linkwatch_dev_tracker->free_stack_handle	0-4294967295
PARAM_VALUE	1	skb->dev->nd_net.net->ipv4.fqdir->f->frag_expire	0,663510801442193408,1753052602134376448,4007388366431105024,8876081723503042560
PARAM_VALUE	1	skb->dev->nd_net.net->ipv4.fqdir->f->qsize	0,304,320
PARAM_VALUE	1	skb->dev->nd_net.net->mib.tcp_statistics	4096-ptr_max
PARAM_VALUE	1	skb->dev->nd_net.net->mib.tcp_statistics->mibs	4096-ptr_max
PARAM_VALUE	1	skb->dev->ndisc_ops->fill_addr_option	4096-ptr_max
PARAM_VALUE	1	skb->dev->ndisc_ops->parse_options	4096-ptr_max
PARAM_VALUE	1	skb->dev->ndisc_ops->update	4096-ptr_max
PARAM_VALUE	1	skb->dev->rtnl_link_ops->maxtype	0-6,8-10,15,18,20,22,24,34,50
PARAM_VALUE	1	skb->dev->rtnl_link_ops->priv_size	0,8,32,40,48,56,88,112,120,144,160,224,240,256,296,616,624,728,744,1056,1128,1336,1616,2176,2240,2272,2560,3296,3544,3552,9688-u64max
PARAM_VALUE	1	skb->extensions	0
PARAM_VALUE	1	skb->ip_summed	0,2-3
PARAM_VALUE	1	skb->next->sk->ns_tracker->alloc_stack_handle	0-4294967295
PARAM_VALUE	1	skb->next->sk->ns_tracker->dead	0-1
PARAM_VALUE	1	skb->next->sk->ns_tracker->free_stack_handle	0-4294967295
PARAM_VALUE	1	skb->next->sk->sk_peer_cred->process_keyring->user->qnbytes	s32min-s32max
PARAM_VALUE	1	skb->next->sk->sk_peer_cred->process_keyring->user->qnkeys	s32min-s32max
PARAM_VALUE	1	skb->next->sk->sk_peer_cred->request_key_auth->user->qnbytes	s32min-s32max
PARAM_VALUE	1	skb->next->sk->sk_peer_cred->request_key_auth->user->qnkeys	s32min-s32max
PARAM_VALUE	1	skb->next->sk->sk_peer_cred->session_keyring->user->qnbytes	s32min-s32max
PARAM_VALUE	1	skb->next->sk->sk_peer_cred->session_keyring->user->qnkeys	s32min-s32max
PARAM_VALUE	1	skb->next->sk->sk_peer_cred->thread_keyring->user->qnbytes	s32min-s32max
PARAM_VALUE	1	skb->next->sk->sk_peer_cred->thread_keyring->user->qnkeys	s32min-s32max
PARAM_VALUE	1	skb->pkt_type	0
PARAM_VALUE	1	skb->sk->__req_common.skc_flags	0
PARAM_VALUE	1	skb->sk->__req_common.skc_listener	0
PARAM_VALUE	1	skb->sk->__req_common.skc_tw_dr	0
PARAM_VALUE	1	skb->sk->__sk_common.skc_u16hashes	0-u32max
PARAM_VALUE	1	skb->sk->ns_tracker->alloc_stack_handle	0-4294967295
PARAM_VALUE	1	skb->sk->ns_tracker->dead	0-1
PARAM_VALUE	1	skb->sk->ns_tracker->free_stack_handle	0-4294967295
PARAM_VALUE	1	*skb->dev->name	0-255
PARAM_VALUE	2	th	4096-ptr_max
PARAM_VALUE	3	tw_isn	5097920825913884672
PARAM_VALUE	4	drop_reason	254621965447065600
BUF_SIZE	1	skb	(-1)-s32max
BUF_SIZE	1	skb	(-1)-s32max
BUF_SIZE	2	th	1-s32max
BUF_SIZE	2	th	1-s32max
CAPPED_DATA	1	skb	1
CAPPED_DATA	1	skb->dev->nd_net.net	1
DATA_SOURCE	1	skb	$0
FUZZY_MAX	1	skb->data->doff	5
RX_PATH
TASK_NOT_RUNNING
HOST_DATA	1	skb->csum_offset	0-u16max
HOST_DATA	1	skb->next->csum_offset	0
HOST_DATA	1	skb->next->data_len	0-u32max[c]
HOST_DATA	1	skb->next->len	0-u32max[c]
HOST_DATA	1	skb->next->prev->csum_offset	0-u16max
HOST_DATA	1	skb->next->prev->data_len	0-u32max[c]
HOST_DATA	1	skb->next->prev->len	1-u32max[c]
HOST_DATA	1	skb->next->prev->tstamp	500000002-4294967299794967295[c]
HOST_DATA	1	skb->prev->csum_offset	0-u16max
HOST_DATA	1	skb->prev->data_len	0-u32max[c]
HOST_DATA	1	skb->prev->len	0-u32max[c]
HOST_DATA	1	skb->prev->tstamp	500000002-4294967299794967295[c]
HOST_DATA	1	skb->protocol	1-255
HOST_DATA	1	skb->tstamp	500000002-4294967299794967295[c]
HOST_DATA	1	skb->users.refs.counter	s32min-0,2-s32max
HOST_DATA	1	*skb->data	0-255
USER_DATA	2	th->ack	0-1[u]
USER_DATA	2	th->ack_seq	0-u32max[u]
USER_DATA	2	th->ae	0-1[u]
USER_DATA	2	th->check	0-u16max[u]
USER_DATA	2	th->cwr	0-1[u]
USER_DATA	2	th->dest	0-u16max[u]
USER_DATA	2	th->doff	0-15[u]
USER_DATA	2	th->ece	0-1[u]
USER_DATA	2	th->fin	0-1[u]
USER_DATA	2	th->psh	0-1[u]
USER_DATA	2	th->res1	0-7[u]
USER_DATA	2	th->rst	0-1[u]
USER_DATA	2	th->seq	0-u32max[u]
USER_DATA	2	th->source	0-u16max[u]
USER_DATA	2	th->syn	0-1[u]
USER_DATA	2	th->urg	0-1[u]
USER_DATA	2	th->urg_ptr	0-u16max[u]
USER_DATA	2	th->window	0-u16max[u]
NO_OVERFLOW_SIMPLE	1	skb->data_len
NO_OVERFLOW_SIMPLE	1	skb->dev->group
NO_OVERFLOW_SIMPLE	1	skb->dev->num_tc
NO_OVERFLOW_SIMPLE	1	skb->dev->proto_down
NO_OVERFLOW_SIMPLE	1	skb->dev->real_num_rx_queues
NO_OVERFLOW_SIMPLE	1	skb->dev->real_num_tx_queues
NO_OVERFLOW_SIMPLE	1	skb->dev->stats.rx_bytes
NO_OVERFLOW_SIMPLE	1	skb->dev->stats.tx_bytes
NO_OVERFLOW_SIMPLE	1	skb->dev->tx_queue_len
NO_OVERFLOW_SIMPLE	1	skb->end
NO_OVERFLOW_SIMPLE	1	skb->len
NO_OVERFLOW_SIMPLE	1	skb->next->data_len
NO_OVERFLOW_SIMPLE	1	skb->next->end
NO_OVERFLOW_SIMPLE	1	skb->next->len
NO_OVERFLOW_SIMPLE	1	skb->next->tail
NO_OVERFLOW_SIMPLE	1	skb->next->truesize
NO_OVERFLOW_SIMPLE	1	skb->prev->data_len
NO_OVERFLOW_SIMPLE	1	skb->prev->end
NO_OVERFLOW_SIMPLE	1	skb->prev->len
NO_OVERFLOW_SIMPLE	1	skb->prev->tail
NO_OVERFLOW_SIMPLE	1	skb->prev->truesize
NO_OVERFLOW_SIMPLE	1	skb->sk->sk_backlog.len
NO_OVERFLOW_SIMPLE	1	skb->tail
NO_OVERFLOW_SIMPLE	1	skb->truesize
UNITS	1	skb	unit_byte
UNITS	2	th	unit_byte
USER_PTR	2	th