ppp_input identifier - Linux source code next-20260811

Projects

linux

Versions

FIXME
- FIXME
  - next-20260811

Defined in 1 files as a prototype:

include/linux/ppp_channel.h, line 54 (as a prototype)

Defined in 1 files as a function:

drivers/net/ppp/ppp_generic.c, line 2316 (as a function)

Referenced in 7 files:

Smatch caller information:

drivers/net/ppp/ppp_synctty.c ppp_sync_process() -> ppp_input()

Type	Parameter	Key	Value
PARAM_VALUE	0	chan	4096-ptr_max
PARAM_VALUE	1	skb	4096-ptr_max
PARAM_VALUE	1	skb->len	1-u32max
PARAM_VALUE	1	skb->next	0
PARAM_VALUE	1	skb->prev	0
DATA_SOURCE	1	skb	r skb_dequeue
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
HALF_LOCKED2		bh

drivers/net/ppp/pptp.c pptp_rcv_core() -> ppp_input()

Type	Parameter	Key	Value
PARAM_VALUE	0	chan	4096-ptr_max
PARAM_VALUE	1	skb	4096-ptr_max
PARAM_VALUE	1	skb->data	4096-ptr_max
PARAM_VALUE	1	skb->data->gre_hd.flags	4096-u16max
PARAM_VALUE	1	skb->dev->rtnl_link_ops->priv_size	0,8,32,40,48,56,88,112,120,144,160,224,240,256,296,616,624,728,736,744,1056,1128,1336,1616,2176,2240,2272,2560,3296,3544,3720,9688-u64max
PARAM_VALUE	1	skb->ip_summed	0
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->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
BUF_SIZE	1	skb	(-1)-s32max
BUF_SIZE	1	skb	(-1)-s32max
DATA_SOURCE	1	skb	$1
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
HOST_DATA	1	skb->csum	0-4294967040[c]
HOST_DATA	1	skb->csum_offset	0-u16max
HOST_DATA	1	skb->data_len	0-u32max[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	1-u32max[c]
HOST_DATA	1	skb->prev->tstamp	500000002-4294967299794967295[c]
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
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
HALF_LOCKED2		&sk->sk_lock.slock
HALF_LOCKED2		sk

drivers/net/ppp/pppoe.c pppoe_rcv_core() -> ppp_input()

Type	Parameter	Key	Value
PARAM_VALUE	0	chan	4096-ptr_max
PARAM_VALUE	1	skb	4096-ptr_max
PARAM_VALUE	1	skb->dev->rtnl_link_ops->priv_size	0,8,32,40,48,56,88,112,120,144,160,224,240,256,296,616,624,728,736,744,1056,1128,1336,1616,2176,2240,2272,2560,3296,3544,3720,9688-u64max
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->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
BUF_SIZE	1	skb	(-1)-s32max
BUF_SIZE	1	skb	(-1)-s32max
DATA_SOURCE	1	skb	$1
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
HOST_DATA	1	skb->csum	0-4294967040[c]
HOST_DATA	1	skb->csum_offset	0-u16max
HOST_DATA	1	skb->data_len	0-u32max[c]
HOST_DATA	1	skb->len	0-u32max[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	1-u32max[c]
HOST_DATA	1	skb->prev->tstamp	500000002-4294967299794967295[c]
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
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
HALF_LOCKED2		&sk->sk_lock.slock
HALF_LOCKED2		sk

drivers/net/ppp/ppp_async.c ppp_async_process() -> ppp_input()

Type	Parameter	Key	Value
PARAM_VALUE	0	chan	4096-ptr_max
PARAM_VALUE	1	skb	4096-ptr_max
PARAM_VALUE	1	skb->cb	4096-ptr_max
PARAM_VALUE	1	skb->next	0
PARAM_VALUE	1	skb->prev	0
DATA_SOURCE	1	skb	r skb_dequeue
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
HALF_LOCKED2		bh

net/l2tp/l2tp_ppp.c pppol2tp_recv() -> ppp_input()

Type	Parameter	Key	Value
PARAM_VALUE	0	chan	4096-ptr_max
PARAM_VALUE	1	skb	4096-ptr_max
PARAM_VALUE	1	skb->cb	4096-ptr_max
PARAM_VALUE	1	skb->data	4096-ptr_max
PARAM_VALUE	1	skb->destructor	0
PARAM_VALUE	1	skb->next	0
PARAM_VALUE	1	skb->prev	0
PARAM_VALUE	1	skb->sk	0
DATA_SOURCE	1	skb	$1
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
LOCK2		rcu_read

net/atm/pppoatm.c pppoatm_push() -> ppp_input()

Type	Parameter	Key	Value
PARAM_VALUE	0	chan	4096-ptr_max
PARAM_VALUE	1	skb	4096-ptr_max
BUF_SIZE	1	skb	(-1)-s32max
BUF_SIZE	1	skb	(-1)-s32max
DATA_SOURCE	1	skb	$1
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
NO_OVERFLOW_SIMPLE	1	skb->prev->data_len
HALF_LOCKED2		global &ioctl_mutex