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Defined in 1 files as a prototype:

Defined in 1 files as a function:

Referenced in 1 files:

Smatch caller information:

net/ipv4/ip_output.c __ip_make_skb() -> ip_options_build()

Type Parameter Key Value
PARAM_VALUE 0 skb 4096-ptr_max
PARAM_VALUE 0 skb->data 4096-u64max
PARAM_VALUE 0 skb->next 0
PARAM_VALUE 0 skb->prev 0
PARAM_VALUE 1 opt 4096-ptr_max
PARAM_VALUE 3 rt->dst.ops 4096-ptr_max
DATA_SOURCE 0 skb r __skb_dequeue
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
UNITS 2 daddr unit_byte
HALF_LOCKED2 sk

net/ipv4/ip_output.c __ip_queue_xmit() -> ip_options_build()

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

net/ipv4/ip_output.c ip_build_and_send_pkt() -> ip_options_build()

Type Parameter Key Value
PARAM_VALUE 0 skb 4096-ptr_max
PARAM_VALUE 0 skb->_skb_refdst 4096-18446744073709547520
PARAM_VALUE 0 skb->cb 4096-ptr_max
PARAM_VALUE 0 skb->csum_offset 16
PARAM_VALUE 0 skb->data->ack 1
PARAM_VALUE 0 skb->data->ae 0
PARAM_VALUE 0 skb->data->cwr 0
PARAM_VALUE 0 skb->data->syn 1
PARAM_VALUE 0 skb->ip_summed 3
PARAM_VALUE 0 skb->l4_hash 1
PARAM_VALUE 0 skb->sw_hash 0
PARAM_VALUE 0 skb->tstamp_type 0-1
PARAM_VALUE 1 opt 4096-ptr_max
PARAM_VALUE 1 opt->optlen 1-255
BUF_SIZE 0 skb 320
BUF_SIZE 0 skb 320
CAPPED_DATA 0 skb->head 1
DATA_SOURCE 0 skb $0
DATA_SOURCE 2 daddr $3
DATA_SOURCE 3 rt r skb_rtable
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
UNITS 2 daddr unit_byte
LOCK2 rcu_read
HALF_LOCKED2 &sk->sk_lock.slock
HALF_LOCKED2 bh
HALF_LOCKED2 sk