hello,
how tcp_sendmsg add message from application layer to
socket buffer skb?
i am unable to find message field in msghdr help me.
struct msghdr {
void * msg_name; /* Socket name
*/
int msg_namelen; /* Length of
name
*/
struct iovec * msg_iov; /* Data blocks
*/
__kernel_size_t msg_iovlen; /* Number of
blocks
*/
void * msg_control; /* Per
protocol magic (eg BSD
file descriptor passing) */
__kernel_size_t msg_controllen; /* Length of
cmsg list */
unsigned msg_flags;
};
also what is use of struct iovec? is that store actual
data? if yes then how that is included in socket
buffer?
regards,
linux_lover
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