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skb_copy_datagram_iovec(9) [centos man page]

SKB_COPY_DATAGRAM_IO(9) 					 Linux Networking					   SKB_COPY_DATAGRAM_IO(9)

NAME
skb_copy_datagram_iovec - Copy a datagram to an iovec. SYNOPSIS
int skb_copy_datagram_iovec(const struct sk_buff * skb, int offset, struct iovec * to, int len); ARGUMENTS
skb buffer to copy offset offset in the buffer to start copying from to io vector to copy to len amount of data to copy from buffer to iovec NOTE
the iovec is modified during the copy. COPYRIGHT
Kernel Hackers Manual 3.10 June 2014 SKB_COPY_DATAGRAM_IO(9)

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uio(9s) 																   uio(9s)

NAME
uio - General: Describes I/O, either single vector or multiple vectors SYNOPSIS
----------------------------- Member Name Data Type ----------------------------- uio_iov struct iovec * uio_iovcnt int uio_offset off_t uio_segflg enum uio_seg uio_resid int uio_rw enum uio_rw ----------------------------- MEMBERS
Specifies a pointer to the first iovec structure. The iovec structure has two members: one that specifies the address of the segment and another that specifies the size of the segment. The system allocates contiguous iovec structures for a given transfer. Specifies the num- ber of iovec structures for this transfer. Specifies the offset within the file. Specifies the segment type. This member can be set to one of the following values: UIO_USERSPACE (the segment is from the user data space), UIO_SYSSPACE (the segment is from the system space), or UIO_USERISPACE (the segment is from the user I space). Specifies the number of bytes that still need to be transferred. Specifies whether the transfer is a read or a write. This member is set by read and write system calls according to the corresponding field in the file descriptor. This member can be set to one of the following values: UIO_READ (read transfer), UIO_WRITE (write transfer), or UIO_AIORW (Alpha I/O read/write transfer). DESCRIPTION
The uio data structure describes, either singler-vector or multiple-vector I/O. Typically, kernel modules do not manipulate the members of this data structure. However, the data structure is presented here for the purpose of understanding the uiomove routine, which operates on the members of the uio structure. FILES
SEE ALSO
Routines: uiomove(9r) uio(9s)
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