__ip_options_echo identifier - Linux source code next-20260811

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linux

Versions

FIXME
- FIXME
  - next-20260811

Defined in 1 files as a prototype:

include/net/ip.h, line 767 (as a prototype)

Defined in 1 files as a function:

net/ipv4/ip_options.c, line 77 (as a function)

Referenced in 4 files:

Smatch caller information:

net/ipv4/tcp_ipv4.c tcp_v4_save_options() -> __ip_options_echo()

Type	Parameter	Key	Value
PARAM_VALUE	1	dopt	4096-ptr_max
PARAM_VALUE	2	skb	4096-ptr_max
PARAM_VALUE	2	skb->cb	4096-ptr_max
PARAM_VALUE	2	skb->dev->ethtool_ops->rxfh_max_num_contexts	0-4294967295
PARAM_VALUE	2	skb->dev->ethtool_ops->supported_coalesce_params	0-s64max
PARAM_VALUE	2	skb->dev->ip6_ptr->mc_query_work.wq->dfl_pwq	0-s64max
PARAM_VALUE	2	skb->dev->ip6_ptr->mc_query_work.wq->saved_max_active	s32min-s32max
PARAM_VALUE	2	skb->dev->ip6_ptr->mc_query_work.wq->saved_min_active	s32min-s32max
PARAM_VALUE	2	skb->dev->ip6_ptr->mc_report_work.wq->dfl_pwq	0-s64max
PARAM_VALUE	2	skb->dev->ip6_ptr->mc_report_work.wq->saved_max_active	s32min-s32max
PARAM_VALUE	2	skb->dev->ip6_ptr->mc_report_work.wq->saved_min_active	s32min-s32max
PARAM_VALUE	2	skb->dev->ip6_ptr->stats.proc_dir_entry	0,4806605944481423360
PARAM_VALUE	2	skb->dev->linkwatch_dev_tracker->alloc_stack_handle	0-4294967295
PARAM_VALUE	2	skb->dev->linkwatch_dev_tracker->free_stack_handle	0-4294967295
PARAM_VALUE	2	skb->dev->nd_net.net->ipv4.fqdir->f->frag_expire	0,663510801442193408,1753052602134376448,4007388366431105024,8876081723503042560
PARAM_VALUE	2	skb->dev->nd_net.net->ipv4.fqdir->f->qsize	0,304,320
PARAM_VALUE	2	skb->dev->ndisc_ops->fill_addr_option	4096-ptr_max
PARAM_VALUE	2	skb->dev->ndisc_ops->parse_options	4096-ptr_max
PARAM_VALUE	2	skb->dev->ndisc_ops->update	4096-ptr_max
PARAM_VALUE	2	skb->dev->rtnl_link_ops->maxtype	0-6,8-10,15,18,20,22,24,34,50
PARAM_VALUE	2	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	2	skb->next->sk->ns_tracker->alloc_stack_handle	0-4294967295
PARAM_VALUE	2	skb->next->sk->ns_tracker->dead	0-1
PARAM_VALUE	2	skb->next->sk->ns_tracker->free_stack_handle	0-4294967295
PARAM_VALUE	2	skb->next->sk->sk_peer_cred->process_keyring->user->qnbytes	s32min-s32max
PARAM_VALUE	2	skb->next->sk->sk_peer_cred->process_keyring->user->qnkeys	s32min-s32max
PARAM_VALUE	2	skb->next->sk->sk_peer_cred->request_key_auth->user->qnbytes	s32min-s32max
PARAM_VALUE	2	skb->next->sk->sk_peer_cred->request_key_auth->user->qnkeys	s32min-s32max
PARAM_VALUE	2	skb->next->sk->sk_peer_cred->session_keyring->user->qnbytes	s32min-s32max
PARAM_VALUE	2	skb->next->sk->sk_peer_cred->session_keyring->user->qnkeys	s32min-s32max
PARAM_VALUE	2	skb->next->sk->sk_peer_cred->thread_keyring->user->qnbytes	s32min-s32max
PARAM_VALUE	2	skb->next->sk->sk_peer_cred->thread_keyring->user->qnkeys	s32min-s32max
PARAM_VALUE	2	skb->sk->__sk_common.skc_net.net->xfrm.nat_keepalive_work.wq->dfl_pwq	0-s64max
PARAM_VALUE	2	skb->sk->__sk_common.skc_net.net->xfrm.nat_keepalive_work.wq->saved_max_active	s32min-s32max
PARAM_VALUE	2	skb->sk->__sk_common.skc_net.net->xfrm.nat_keepalive_work.wq->saved_min_active	s32min-s32max
PARAM_VALUE	2	skb->sk->ns_tracker->alloc_stack_handle	0-4294967295
PARAM_VALUE	2	skb->sk->ns_tracker->dead	0-1
PARAM_VALUE	2	skb->sk->ns_tracker->free_stack_handle	0-4294967295
PARAM_VALUE	2	skb->sk->sk_peer_cred->process_keyring->user->qnbytes	s32min-s32max
PARAM_VALUE	2	skb->sk->sk_peer_cred->process_keyring->user->qnkeys	s32min-s32max
PARAM_VALUE	2	skb->sk->sk_peer_cred->request_key_auth->user->qnbytes	s32min-s32max
PARAM_VALUE	2	skb->sk->sk_peer_cred->request_key_auth->user->qnkeys	s32min-s32max
PARAM_VALUE	2	skb->sk->sk_peer_cred->session_keyring->user->qnbytes	s32min-s32max
PARAM_VALUE	2	skb->sk->sk_peer_cred->session_keyring->user->qnkeys	s32min-s32max
PARAM_VALUE	2	skb->sk->sk_peer_cred->thread_keyring->user->qnbytes	s32min-s32max
PARAM_VALUE	2	skb->sk->sk_peer_cred->thread_keyring->user->qnkeys	s32min-s32max
PARAM_VALUE	3	sopt	4096-ptr_max
PARAM_VALUE	3	sopt->optlen	1-255
BUF_SIZE	1	dopt	17-271
BUF_SIZE	2	skb	(-1)-s32max
BUF_SIZE	2	skb	(-1)-s32max
BUF_SIZE	3	sopt	16
DATA_SOURCE	0	net	$0
DATA_SOURCE	2	skb	$1
RX_PATH
TASK_NOT_RUNNING
HOST_DATA	2	skb->csum	0-4294967040[c]
HOST_DATA	2	skb->csum_offset	0-u16max
HOST_DATA	2	skb->data_len	0-u32max[c]
HOST_DATA	2	skb->len	0-u32max[c]
HOST_DATA	2	skb->prev->csum_offset	0-u16max
HOST_DATA	2	skb->prev->data_len	0-u32max[c]
HOST_DATA	2	skb->prev->len	1-u32max[c]
HOST_DATA	2	skb->prev->tstamp	500000002-4294967299794967295[c]
HOST_DATA	2	skb->truesize	0-u32max
HOST_DATA	2	skb->users.refs.counter	s32min-0,2-s32max
HOST_DATA	2	*skb->data	0-255
NO_OVERFLOW_SIMPLE	2	skb->data_len
NO_OVERFLOW_SIMPLE	2	skb->dev->group
NO_OVERFLOW_SIMPLE	2	skb->dev->num_tc
NO_OVERFLOW_SIMPLE	2	skb->dev->real_num_rx_queues
NO_OVERFLOW_SIMPLE	2	skb->dev->real_num_tx_queues
NO_OVERFLOW_SIMPLE	2	skb->dev->stats.rx_bytes
NO_OVERFLOW_SIMPLE	2	skb->dev->stats.tx_bytes
NO_OVERFLOW_SIMPLE	2	skb->dev->tx_queue_len
NO_OVERFLOW_SIMPLE	2	skb->end
NO_OVERFLOW_SIMPLE	2	skb->len
NO_OVERFLOW_SIMPLE	2	skb->next->end
NO_OVERFLOW_SIMPLE	2	skb->next->len
NO_OVERFLOW_SIMPLE	2	skb->next->tail
NO_OVERFLOW_SIMPLE	2	skb->prev->end
NO_OVERFLOW_SIMPLE	2	skb->prev->len
NO_OVERFLOW_SIMPLE	2	skb->prev->tail
NO_OVERFLOW_SIMPLE	2	skb->sk->sk_backlog.len
NO_OVERFLOW_SIMPLE	2	skb->tail
NO_OVERFLOW_SIMPLE	2	skb->truesize
UNITS	0	net	unit_byte
HALF_LOCKED2		&sk_listener->sk_lock.slock
HALF_LOCKED2		bh
HALF_LOCKED2		rcu_read
HALF_LOCKED2		sk_listener

net/ipv4/syncookies.c tcp_v4_save_options() -> __ip_options_echo()

Type	Parameter	Key	Value
PARAM_VALUE	0	net->ipv4.sysctl_tcp_syncookies	1-255
PARAM_VALUE	1	dopt	4096-ptr_max
PARAM_VALUE	2	skb	4096-ptr_max
PARAM_VALUE	2	skb->cb	4096-ptr_max
PARAM_VALUE	2	skb->ip_summed	0,2-3
PARAM_VALUE	2	skb->next->sk->ns_tracker->alloc_stack_handle	0-4294967295
PARAM_VALUE	2	skb->next->sk->ns_tracker->dead	0-1
PARAM_VALUE	2	skb->next->sk->ns_tracker->free_stack_handle	0-4294967295
PARAM_VALUE	2	skb->next->sk->sk_peer_cred->process_keyring->user->qnbytes	s32min-s32max
PARAM_VALUE	2	skb->next->sk->sk_peer_cred->process_keyring->user->qnkeys	s32min-s32max
PARAM_VALUE	2	skb->next->sk->sk_peer_cred->request_key_auth->user->qnbytes	s32min-s32max
PARAM_VALUE	2	skb->next->sk->sk_peer_cred->request_key_auth->user->qnkeys	s32min-s32max
PARAM_VALUE	2	skb->next->sk->sk_peer_cred->session_keyring->user->qnbytes	s32min-s32max
PARAM_VALUE	2	skb->next->sk->sk_peer_cred->session_keyring->user->qnkeys	s32min-s32max
PARAM_VALUE	2	skb->next->sk->sk_peer_cred->thread_keyring->user->qnbytes	s32min-s32max
PARAM_VALUE	2	skb->next->sk->sk_peer_cred->thread_keyring->user->qnkeys	s32min-s32max
PARAM_VALUE	2	skb->sk	0
PARAM_VALUE	2	skb->sk->__sk_common.skc_net.net->xfrm.nat_keepalive_work.wq->dfl_pwq	0-s64max
PARAM_VALUE	2	skb->sk->__sk_common.skc_net.net->xfrm.nat_keepalive_work.wq->saved_max_active	s32min-s32max
PARAM_VALUE	2	skb->sk->__sk_common.skc_net.net->xfrm.nat_keepalive_work.wq->saved_min_active	s32min-s32max
PARAM_VALUE	2	skb->sk->ns_tracker->alloc_stack_handle	0-4294967295
PARAM_VALUE	2	skb->sk->ns_tracker->dead	0-1
PARAM_VALUE	2	skb->sk->ns_tracker->free_stack_handle	0-4294967295
PARAM_VALUE	2	skb->sk->sk_peer_cred->process_keyring->user->qnbytes	s32min-s32max
PARAM_VALUE	2	skb->sk->sk_peer_cred->process_keyring->user->qnkeys	s32min-s32max
PARAM_VALUE	2	skb->sk->sk_peer_cred->request_key_auth->user->qnbytes	s32min-s32max
PARAM_VALUE	2	skb->sk->sk_peer_cred->request_key_auth->user->qnkeys	s32min-s32max
PARAM_VALUE	2	skb->sk->sk_peer_cred->session_keyring->user->qnbytes	s32min-s32max
PARAM_VALUE	2	skb->sk->sk_peer_cred->session_keyring->user->qnkeys	s32min-s32max
PARAM_VALUE	2	skb->sk->sk_peer_cred->thread_keyring->user->qnbytes	s32min-s32max
PARAM_VALUE	2	skb->sk->sk_peer_cred->thread_keyring->user->qnkeys	s32min-s32max
PARAM_VALUE	2	*skb->dev->name	0-255
PARAM_VALUE	3	sopt	4096-ptr_max
PARAM_VALUE	3	sopt->optlen	1-255
BUF_SIZE	1	dopt	17-271
BUF_SIZE	2	skb	(-1)-s32max
BUF_SIZE	2	skb	(-1)-s32max
BUF_SIZE	3	sopt	16
DATA_SOURCE	0	net	$0
DATA_SOURCE	2	skb	$1
RX_PATH
TASK_NOT_RUNNING
HOST_DATA	2	skb->csum	0-4294967040[c]
HOST_DATA	2	skb->csum_offset	0-u16max
HOST_DATA	2	skb->data_len	0-u32max[c]
HOST_DATA	2	skb->len	0-u32max[c]
HOST_DATA	2	skb->prev->csum_offset	0-u16max
HOST_DATA	2	skb->prev->data_len	0-u32max[c]
HOST_DATA	2	skb->prev->len	1-u32max[c]
HOST_DATA	2	skb->prev->tstamp	500000002-4294967299794967295[c]
HOST_DATA	2	skb->tstamp	500000002-4294967299794967295[c]
HOST_DATA	2	skb->users.refs.counter	s32min-0,2-s32max
HOST_DATA	2	*skb->data	0-255
NO_OVERFLOW_SIMPLE	2	skb->data_len
NO_OVERFLOW_SIMPLE	2	skb->dev->group
NO_OVERFLOW_SIMPLE	2	skb->dev->num_tc
NO_OVERFLOW_SIMPLE	2	skb->dev->proto_down
NO_OVERFLOW_SIMPLE	2	skb->dev->real_num_rx_queues
NO_OVERFLOW_SIMPLE	2	skb->dev->real_num_tx_queues
NO_OVERFLOW_SIMPLE	2	skb->dev->stats.rx_bytes
NO_OVERFLOW_SIMPLE	2	skb->dev->stats.tx_bytes
NO_OVERFLOW_SIMPLE	2	skb->dev->tx_queue_len
NO_OVERFLOW_SIMPLE	2	skb->end
NO_OVERFLOW_SIMPLE	2	skb->len
NO_OVERFLOW_SIMPLE	2	skb->next->data_len
NO_OVERFLOW_SIMPLE	2	skb->next->end
NO_OVERFLOW_SIMPLE	2	skb->next->len
NO_OVERFLOW_SIMPLE	2	skb->next->tail
NO_OVERFLOW_SIMPLE	2	skb->next->truesize
NO_OVERFLOW_SIMPLE	2	skb->prev->end
NO_OVERFLOW_SIMPLE	2	skb->prev->len
NO_OVERFLOW_SIMPLE	2	skb->prev->tail
NO_OVERFLOW_SIMPLE	2	skb->prev->truesize
NO_OVERFLOW_SIMPLE	2	skb->sk->sk_backlog.len
NO_OVERFLOW_SIMPLE	2	skb->tail
NO_OVERFLOW_SIMPLE	2	skb->truesize
UNITS	0	net	unit_byte
UNITS	2	skb	unit_byte
HALF_LOCKED2		&sk->sk_lock.slock
HALF_LOCKED2		sk

net/ipv4/ip_sockglue.c ip_options_echo() -> __ip_options_echo()

Type	Parameter	Key	Value
PARAM_VALUE	1	dopt	1189513578680512512
PARAM_VALUE	2	skb	4096-ptr_max
PARAM_VALUE	2	skb->cb	4096-ptr_max
PARAM_VALUE	2	skb->sk->ns_tracker->alloc_stack_handle	0-4294967295
PARAM_VALUE	2	skb->sk->ns_tracker->dead	0-1
PARAM_VALUE	2	skb->sk->ns_tracker->free_stack_handle	0-4294967295
PARAM_VALUE	2	skb->tstamp_type	0
PARAM_VALUE	3	sopt	4096-ptr_max
BUF_SIZE	1	dopt	56
BUF_SIZE	1	dopt	56
BUF_SIZE	2	skb	(-1),1-s32max
BUF_SIZE	2	skb	(-1),1-s32max
DATA_SOURCE	0	net	$0
DATA_SOURCE	1	dopt	$1
DATA_SOURCE	2	skb	$2
RX_PATH
TASK_NOT_RUNNING

net/ipv4/icmp.c __icmp_send() -> __ip_options_echo()

Type	Parameter	Key	Value
PARAM_VALUE	1	dopt	9159443850083201080
PARAM_VALUE	2	skb	4096-ptr_max
PARAM_VALUE	2	skb->dev	0,4096-ptr_max
PARAM_VALUE	2	skb->dev->nd_net.net->ipv4.fqdir->f->frag_expire	0,663510801442193408,1753052602134376448,4007388366431105024,8876081723503042560
PARAM_VALUE	2	skb->dev->nd_net.net->ipv4.fqdir->f->qsize	0,304,320
PARAM_VALUE	2	skb->dev->ndisc_ops->fill_addr_option	4096-ptr_max
PARAM_VALUE	2	skb->dev->ndisc_ops->parse_options	4096-ptr_max
PARAM_VALUE	2	skb->dev->ndisc_ops->update	4096-ptr_max
PARAM_VALUE	2	skb->dev->rtnl_link_ops->maxtype	0-6,8-10,15,18,20,22,24,34,50
PARAM_VALUE	2	skb->dev->rtnl_link_ops->priv_size	0,8,32,40,48,56,88,112,120,144,160,224,240,256,296,616,624,728,736,744,1056,1128,1336,1616,2176,2240,2272,2560,3296,3544,3552,3720,9688-u64max
PARAM_VALUE	2	skb->head	0-ptr_max
PARAM_VALUE	2	skb->pkt_type	0
PARAM_VALUE	2	*skb->dev->name	0-255
PARAM_VALUE	3	sopt	4096-ptr_max
BUF_SIZE	2	skb	(-1)-s32max
BUF_SIZE	2	skb	(-1)-s32max
CAPPED_DATA	2	skb	1
CAPPED_DATA	2	skb->head	1
DATA_SOURCE	2	skb	$0
PREEMPT_ADD			<- disables preempt
RX_PATH
TASK_NOT_RUNNING
HOST_DATA	2	skb->csum	0-4294967040[c]
HOST_DATA	2	skb->csum_offset	0-u16max
HOST_DATA	2	skb->data_len	0-u32max[c]
HOST_DATA	2	skb->inner_protocol	1-255
HOST_DATA	2	skb->len	0-u32max[c]
HOST_DATA	2	skb->next->csum_offset	0-u16max
HOST_DATA	2	skb->next->data_len	0-u32max[c]
HOST_DATA	2	skb->next->len	1-u32max[c]
HOST_DATA	2	skb->prev->csum_offset	0-u16max
HOST_DATA	2	skb->prev->data_len	0-u32max[c]
HOST_DATA	2	skb->prev->len	0-u32max[c]
HOST_DATA	2	skb->prev->truesize	0-u32max
HOST_DATA	2	skb->prev->tstamp	500000002-4294967299794967295[c]
HOST_DATA	2	skb->prev->users.refs.counter	s32min-0,2-s32max
HOST_DATA	2	skb->protocol	1-255
HOST_DATA	2	skb->truesize	0-u32max
HOST_DATA	2	skb->tstamp	500000002-4294967299794967295[c]
HOST_DATA	2	skb->users.refs.counter	s32min-0,2-s32max
HOST_DATA	2	*skb->data	0-255
NO_OVERFLOW_SIMPLE	2	skb->data_len
NO_OVERFLOW_SIMPLE	2	skb->dev->group
NO_OVERFLOW_SIMPLE	2	skb->dev->num_tc
NO_OVERFLOW_SIMPLE	2	skb->dev->proto_down
NO_OVERFLOW_SIMPLE	2	skb->dev->real_num_rx_queues
NO_OVERFLOW_SIMPLE	2	skb->dev->real_num_tx_queues
NO_OVERFLOW_SIMPLE	2	skb->dev->stats.rx_bytes
NO_OVERFLOW_SIMPLE	2	skb->dev->stats.tx_bytes
NO_OVERFLOW_SIMPLE	2	skb->dev->tx_queue_len
NO_OVERFLOW_SIMPLE	2	skb->end
NO_OVERFLOW_SIMPLE	2	skb->len
NO_OVERFLOW_SIMPLE	2	skb->next->data_len
NO_OVERFLOW_SIMPLE	2	skb->next->end
NO_OVERFLOW_SIMPLE	2	skb->next->len
NO_OVERFLOW_SIMPLE	2	skb->next->tail
NO_OVERFLOW_SIMPLE	2	skb->next->truesize
NO_OVERFLOW_SIMPLE	2	skb->prev->data_len
NO_OVERFLOW_SIMPLE	2	skb->prev->end
NO_OVERFLOW_SIMPLE	2	skb->prev->len
NO_OVERFLOW_SIMPLE	2	skb->prev->tail
NO_OVERFLOW_SIMPLE	2	skb->prev->truesize
NO_OVERFLOW_SIMPLE	2	skb->sk->sk_backlog.len
NO_OVERFLOW_SIMPLE	2	skb->tail
NO_OVERFLOW_SIMPLE	2	skb->truesize
UNITS	0	net	unit_byte
UNITS	2	skb	unit_byte
LOCK2		bh
HALF_LOCKED2		&x->lock
HALF_LOCKED2		rcu_read

net/ipv4/icmp.c ip_options_echo() -> __ip_options_echo()

Type	Parameter	Key	Value
PARAM_VALUE	1	dopt	492589751759552568,4857504166837624888
PARAM_VALUE	2	skb	4096-ptr_max
PARAM_VALUE	2	skb->_skb_refdst	1-u64max
PARAM_VALUE	2	skb->csum_valid	1
PARAM_VALUE	2	skb->data	4096-ptr_max
PARAM_VALUE	2	skb->dev	4096-ptr_max
PARAM_VALUE	2	skb->dev->ethtool_ops->create_rxfh_context	0-s64max
PARAM_VALUE	2	skb->dev->ethtool_ops->get_link_ext_state	0-s64max
PARAM_VALUE	2	skb->dev->ethtool_ops->get_mm_stats	0-s64max
PARAM_VALUE	2	skb->dev->ethtool_ops->modify_rxfh_context	0-s64max
PARAM_VALUE	2	skb->dev->ethtool_ops->remove_rxfh_context	0-s64max
PARAM_VALUE	2	skb->dev->ethtool_ops->rxfh_max_num_contexts	0-4294967295
PARAM_VALUE	2	skb->dev->ethtool_ops->supported_coalesce_params	0-s64max
PARAM_VALUE	2	skb->dev->ip6_ptr->mc_query_work.wq->dfl_pwq	0-s64max
PARAM_VALUE	2	skb->dev->ip6_ptr->mc_query_work.wq->saved_max_active	s32min-s32max
PARAM_VALUE	2	skb->dev->ip6_ptr->mc_query_work.wq->saved_min_active	s32min-s32max
PARAM_VALUE	2	skb->dev->ip6_ptr->mc_report_work.wq->dfl_pwq	0-s64max
PARAM_VALUE	2	skb->dev->ip6_ptr->mc_report_work.wq->saved_max_active	s32min-s32max
PARAM_VALUE	2	skb->dev->ip6_ptr->mc_report_work.wq->saved_min_active	s32min-s32max
PARAM_VALUE	2	skb->dev->ip6_ptr->stats.proc_dir_entry	0,4806605944481423360
PARAM_VALUE	2	skb->dev->ip_ptr->mc_list->crcount	0-255
PARAM_VALUE	2	skb->dev->ip_ptr->mc_list->gsquery	0-255
PARAM_VALUE	2	skb->dev->ip_ptr->mc_list->loaded	0-255
PARAM_VALUE	2	skb->dev->ip_ptr->mc_list->multiaddr	0-4294967295
PARAM_VALUE	2	skb->dev->ip_ptr->mc_list->reporter	0-255
PARAM_VALUE	2	skb->dev->ip_ptr->mc_list->sfmode	0-4294967295
PARAM_VALUE	2	skb->dev->ip_ptr->mc_list->tm_running	0-255
PARAM_VALUE	2	skb->dev->ip_ptr->mc_list->unsolicit_count	0-255
PARAM_VALUE	2	skb->dev->ip_ptr->mc_list->users	s32min-s32max
PARAM_VALUE	2	skb->dev->linkwatch_dev_tracker->alloc_stack_handle	0-4294967295
PARAM_VALUE	2	skb->dev->linkwatch_dev_tracker->free_stack_handle	0-4294967295
PARAM_VALUE	2	skb->dev->nd_net.net	4096-ptr_max
PARAM_VALUE	2	skb->dev->nd_net.net->gen->s.len	0-s32max
PARAM_VALUE	2	skb->dev->nd_net.net->ipv4.fqdir->f->frag_expire	0,663510801442193408,1753052602134376448,4007388366431105024,8876081723503042560
PARAM_VALUE	2	skb->dev->nd_net.net->ipv4.fqdir->f->qsize	0,304,320
PARAM_VALUE	2	skb->dev->ndisc_ops->fill_addr_option	4096-ptr_max
PARAM_VALUE	2	skb->dev->ndisc_ops->parse_options	4096-ptr_max
PARAM_VALUE	2	skb->dev->ndisc_ops->update	4096-ptr_max
PARAM_VALUE	2	skb->dev->rtnl_link_ops->maxtype	0-6,8-10,15,18,20,22,24,34,50
PARAM_VALUE	2	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	2	skb->extensions	0
PARAM_VALUE	2	skb->ip_summed	0,2-3
PARAM_VALUE	2	skb->next->sk->ns_tracker->alloc_stack_handle	0-4294967295
PARAM_VALUE	2	skb->next->sk->ns_tracker->dead	0-1
PARAM_VALUE	2	skb->next->sk->ns_tracker->free_stack_handle	0-4294967295
PARAM_VALUE	2	skb->next->sk->sk_peer_cred->process_keyring->user->qnbytes	s32min-s32max
PARAM_VALUE	2	skb->next->sk->sk_peer_cred->process_keyring->user->qnkeys	s32min-s32max
PARAM_VALUE	2	skb->next->sk->sk_peer_cred->request_key_auth->user->qnbytes	s32min-s32max
PARAM_VALUE	2	skb->next->sk->sk_peer_cred->request_key_auth->user->qnkeys	s32min-s32max
PARAM_VALUE	2	skb->next->sk->sk_peer_cred->session_keyring->user->qnbytes	s32min-s32max
PARAM_VALUE	2	skb->next->sk->sk_peer_cred->session_keyring->user->qnkeys	s32min-s32max
PARAM_VALUE	2	skb->next->sk->sk_peer_cred->thread_keyring->user->qnbytes	s32min-s32max
PARAM_VALUE	2	skb->next->sk->sk_peer_cred->thread_keyring->user->qnkeys	s32min-s32max
PARAM_VALUE	2	skb->sk->__sk_common.skc_net.net->gen->s.len	0-s32max
PARAM_VALUE	2	skb->sk->__sk_common.skc_net.net->xfrm.nat_keepalive_work.wq->dfl_pwq	0-s64max
PARAM_VALUE	2	skb->sk->__sk_common.skc_net.net->xfrm.nat_keepalive_work.wq->saved_max_active	s32min-s32max
PARAM_VALUE	2	skb->sk->__sk_common.skc_net.net->xfrm.nat_keepalive_work.wq->saved_min_active	s32min-s32max
PARAM_VALUE	2	skb->sk->ns_tracker->alloc_stack_handle	0-4294967295
PARAM_VALUE	2	skb->sk->ns_tracker->dead	0-1
PARAM_VALUE	2	skb->sk->ns_tracker->free_stack_handle	0-4294967295
PARAM_VALUE	2	skb->sk->sk_peer_cred->process_keyring->user->qnbytes	s32min-s32max
PARAM_VALUE	2	skb->sk->sk_peer_cred->process_keyring->user->qnkeys	s32min-s32max
PARAM_VALUE	2	skb->sk->sk_peer_cred->request_key_auth->user->qnbytes	s32min-s32max
PARAM_VALUE	2	skb->sk->sk_peer_cred->request_key_auth->user->qnkeys	s32min-s32max
PARAM_VALUE	2	skb->sk->sk_peer_cred->session_keyring->user->qnbytes	s32min-s32max
PARAM_VALUE	2	skb->sk->sk_peer_cred->session_keyring->user->qnkeys	s32min-s32max
PARAM_VALUE	2	skb->sk->sk_peer_cred->thread_keyring->user->qnbytes	s32min-s32max
PARAM_VALUE	2	skb->sk->sk_peer_cred->thread_keyring->user->qnkeys	s32min-s32max
PARAM_VALUE	3	sopt	4096-ptr_max
BUF_SIZE	2	skb	(-1)-s32max
BUF_SIZE	2	skb	(-1)-s32max
CAPPED_DATA	2	skb->dev->nd_net.net	1
DATA_SOURCE	0	net	$0
DATA_SOURCE	1	dopt	$1
DATA_SOURCE	2	skb	$2
CONSTRAINT	2	skb	<=49
RX_PATH
TASK_NOT_RUNNING
HOST_DATA	2	skb->csum	0-4294967040[c]
HOST_DATA	2	skb->csum_offset	0-u16max
HOST_DATA	2	skb->prev->csum_offset	0-u16max
HOST_DATA	2	skb->prev->data_len	0-u32max[c]
HOST_DATA	2	skb->prev->len	1-u32max[c]
HOST_DATA	2	skb->prev->tstamp	500000002-4294967299794967295[c]
HOST_DATA	2	skb->tstamp	500000002-4294967299794967295[c]
HOST_DATA	2	skb->users.refs.counter	s32min-0,2-s32max
HOST_DATA	2	*skb->data	0-255
NO_OVERFLOW_SIMPLE	2	skb->data_len
NO_OVERFLOW_SIMPLE	2	skb->dev->group
NO_OVERFLOW_SIMPLE	2	skb->dev->num_tc
NO_OVERFLOW_SIMPLE	2	skb->dev->real_num_rx_queues
NO_OVERFLOW_SIMPLE	2	skb->dev->real_num_tx_queues
NO_OVERFLOW_SIMPLE	2	skb->dev->stats.rx_bytes
NO_OVERFLOW_SIMPLE	2	skb->dev->stats.tx_bytes
NO_OVERFLOW_SIMPLE	2	skb->dev->tx_queue_len
NO_OVERFLOW_SIMPLE	2	skb->end
NO_OVERFLOW_SIMPLE	2	skb->len
NO_OVERFLOW_SIMPLE	2	skb->next->data_len
NO_OVERFLOW_SIMPLE	2	skb->next->end
NO_OVERFLOW_SIMPLE	2	skb->next->len
NO_OVERFLOW_SIMPLE	2	skb->next->tail
NO_OVERFLOW_SIMPLE	2	skb->prev->end
NO_OVERFLOW_SIMPLE	2	skb->prev->len
NO_OVERFLOW_SIMPLE	2	skb->prev->tail
NO_OVERFLOW_SIMPLE	2	skb->prev->truesize
NO_OVERFLOW_SIMPLE	2	skb->sk->sk_backlog.len
NO_OVERFLOW_SIMPLE	2	skb->tail
NO_OVERFLOW_SIMPLE	2	skb->truesize
UNITS	0	net	unit_byte
UNITS	2	skb	unit_byte
HALF_LOCKED2		rcu_read

net/ipv4/ip_output.c ip_send_unicast_reply() -> __ip_options_echo()

Type	Parameter	Key	Value
PARAM_VALUE	1	dopt	1759573149537710096
PARAM_VALUE	2	skb	4096-ptr_max
PARAM_VALUE	2	skb->cb	4096-ptr_max
PARAM_VALUE	2	skb->dev->ethtool_ops->create_rxfh_context	0-s64max
PARAM_VALUE	2	skb->dev->ethtool_ops->get_link_ext_state	0-s64max
PARAM_VALUE	2	skb->dev->ethtool_ops->get_mm_stats	0-s64max
PARAM_VALUE	2	skb->dev->ethtool_ops->modify_rxfh_context	0-s64max
PARAM_VALUE	2	skb->dev->ethtool_ops->remove_rxfh_context	0-s64max
PARAM_VALUE	2	skb->dev->ethtool_ops->rxfh_max_num_contexts	0-4294967295
PARAM_VALUE	2	skb->dev->ethtool_ops->supported_coalesce_params	0-s64max
PARAM_VALUE	2	skb->dev->nd_net.net->ipv4.fqdir->f->frag_expire	0,663510801442193408,1753052602134376448,4007388366431105024,8876081723503042560
PARAM_VALUE	2	skb->dev->nd_net.net->ipv4.fqdir->f->qsize	0,304,320
PARAM_VALUE	2	skb->dev->ndisc_ops->fill_addr_option	4096-ptr_max
PARAM_VALUE	2	skb->dev->ndisc_ops->parse_options	4096-ptr_max
PARAM_VALUE	2	skb->dev->ndisc_ops->update	4096-ptr_max
PARAM_VALUE	2	skb->dev->rtnl_link_ops->maxtype	0-6,8-10,15,18,20,22,24,34,50
PARAM_VALUE	2	skb->dev->rtnl_link_ops->priv_size	0,8,32,40,48,56,88,112,120,144,160,224,240,256,296,616,624,728,736,744,1056,1128,1336,1616,2176,2240,2272,2560,3296,3544,3552,3720,9688-u64max
PARAM_VALUE	2	skb->next->sk->ns_tracker->alloc_stack_handle	0-4294967295
PARAM_VALUE	2	skb->next->sk->ns_tracker->dead	0-1
PARAM_VALUE	2	skb->next->sk->ns_tracker->free_stack_handle	0-4294967295
PARAM_VALUE	2	skb->next->sk->sk_peer_cred->process_keyring->user->qnbytes	s32min-s32max
PARAM_VALUE	2	skb->next->sk->sk_peer_cred->process_keyring->user->qnkeys	s32min-s32max
PARAM_VALUE	2	skb->next->sk->sk_peer_cred->request_key_auth->user->qnbytes	s32min-s32max
PARAM_VALUE	2	skb->next->sk->sk_peer_cred->request_key_auth->user->qnkeys	s32min-s32max
PARAM_VALUE	2	skb->next->sk->sk_peer_cred->session_keyring->user->qnbytes	s32min-s32max
PARAM_VALUE	2	skb->next->sk->sk_peer_cred->session_keyring->user->qnkeys	s32min-s32max
PARAM_VALUE	2	skb->next->sk->sk_peer_cred->thread_keyring->user->qnbytes	s32min-s32max
PARAM_VALUE	2	skb->next->sk->sk_peer_cred->thread_keyring->user->qnkeys	s32min-s32max
PARAM_VALUE	2	skb->sk->__sk_common.skc_net.net->xfrm.nat_keepalive_work.wq->dfl_pwq	0-s64max
PARAM_VALUE	2	skb->sk->__sk_common.skc_net.net->xfrm.nat_keepalive_work.wq->saved_max_active	s32min-s32max
PARAM_VALUE	2	skb->sk->__sk_common.skc_net.net->xfrm.nat_keepalive_work.wq->saved_min_active	s32min-s32max
PARAM_VALUE	2	skb->sk->ns_tracker->alloc_stack_handle	0-4294967295
PARAM_VALUE	2	skb->sk->ns_tracker->dead	0-1
PARAM_VALUE	2	skb->sk->ns_tracker->free_stack_handle	0-4294967295
PARAM_VALUE	2	skb->sk->sk_peer_cred->process_keyring->user->qnbytes	s32min-s32max
PARAM_VALUE	2	skb->sk->sk_peer_cred->process_keyring->user->qnkeys	s32min-s32max
PARAM_VALUE	2	skb->sk->sk_peer_cred->request_key_auth->user->qnbytes	s32min-s32max
PARAM_VALUE	2	skb->sk->sk_peer_cred->request_key_auth->user->qnkeys	s32min-s32max
PARAM_VALUE	2	skb->sk->sk_peer_cred->session_keyring->user->qnbytes	s32min-s32max
PARAM_VALUE	2	skb->sk->sk_peer_cred->session_keyring->user->qnkeys	s32min-s32max
PARAM_VALUE	2	skb->sk->sk_peer_cred->thread_keyring->user->qnbytes	s32min-s32max
PARAM_VALUE	2	skb->sk->sk_peer_cred->thread_keyring->user->qnkeys	s32min-s32max
PARAM_VALUE	2	*skb->dev->name	0-255
BUF_SIZE	1	dopt	56
BUF_SIZE	2	skb	(-1)-s32max
BUF_SIZE	2	skb	(-1)-s32max
CAPPED_DATA	2	skb	1
DATA_SOURCE	2	skb	$2
DATA_SOURCE	3	sopt	$3
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
HOST_DATA	2	skb->csum	0-4294967040[c]
HOST_DATA	2	skb->csum_offset	0-u16max
HOST_DATA	2	skb->data_len	0-u32max[c]
HOST_DATA	2	skb->len	0-u32max[c]
HOST_DATA	2	skb->prev->csum_offset	0-u16max
HOST_DATA	2	skb->prev->data_len	0-u32max[c]
HOST_DATA	2	skb->prev->len	1-u32max[c]
HOST_DATA	2	skb->prev->tstamp	500000002-4294967299794967295[c]
HOST_DATA	2	skb->truesize	0-u32max
HOST_DATA	2	skb->tstamp	500000002-4294967299794967295[c]
HOST_DATA	2	skb->users.refs.counter	s32min-0,2-s32max
HOST_DATA	2	*skb->data	0-255
NO_OVERFLOW_SIMPLE	2	skb->data_len
NO_OVERFLOW_SIMPLE	2	skb->dev->group
NO_OVERFLOW_SIMPLE	2	skb->dev->num_tc
NO_OVERFLOW_SIMPLE	2	skb->dev->proto_down
NO_OVERFLOW_SIMPLE	2	skb->dev->real_num_rx_queues
NO_OVERFLOW_SIMPLE	2	skb->dev->real_num_tx_queues
NO_OVERFLOW_SIMPLE	2	skb->dev->stats.rx_bytes
NO_OVERFLOW_SIMPLE	2	skb->dev->stats.tx_bytes
NO_OVERFLOW_SIMPLE	2	skb->dev->tx_queue_len
NO_OVERFLOW_SIMPLE	2	skb->end
NO_OVERFLOW_SIMPLE	2	skb->len
NO_OVERFLOW_SIMPLE	2	skb->next->data_len
NO_OVERFLOW_SIMPLE	2	skb->next->end
NO_OVERFLOW_SIMPLE	2	skb->next->len
NO_OVERFLOW_SIMPLE	2	skb->next->tail
NO_OVERFLOW_SIMPLE	2	skb->next->truesize
NO_OVERFLOW_SIMPLE	2	skb->prev->data_len
NO_OVERFLOW_SIMPLE	2	skb->prev->end
NO_OVERFLOW_SIMPLE	2	skb->prev->len
NO_OVERFLOW_SIMPLE	2	skb->prev->tail
NO_OVERFLOW_SIMPLE	2	skb->prev->truesize
NO_OVERFLOW_SIMPLE	2	skb->sk->sk_backlog.len
NO_OVERFLOW_SIMPLE	2	skb->tail
NO_OVERFLOW_SIMPLE	2	skb->truesize
UNITS	0	net	unit_byte
UNITS	2	skb	unit_byte
LOCK2		bh
HALF_LOCKED2		&orig_sk->sk_lock.slock
HALF_LOCKED2		orig_sk
HALF_LOCKED2		rcu_read