Mercurial > hg > nginx
view src/os/unix/ngx_solaris_sendfilev_chain.c @ 8795:278ab0ed24f2 quic
HTTP/3: generate more H3_FRAME_UNEXPECTED.
As per quic-http-34, these are the cases when this error should be generated:
If an endpoint receives a second SETTINGS frame
on the control stream, the endpoint MUST respond with a connection
error of type H3_FRAME_UNEXPECTED
SETTINGS frames MUST NOT be sent on any stream other than the control
stream. If an endpoint receives a SETTINGS frame on a different
stream, the endpoint MUST respond with a connection error of type
H3_FRAME_UNEXPECTED.
A client MUST NOT send a PUSH_PROMISE frame. A server MUST treat the
receipt of a PUSH_PROMISE frame as a connection error of type
H3_FRAME_UNEXPECTED; see Section 8.
The MAX_PUSH_ID frame is always sent on the control stream. Receipt
of a MAX_PUSH_ID frame on any other stream MUST be treated as a
connection error of type H3_FRAME_UNEXPECTED.
Receipt of an invalid sequence of frames MUST be treated as a
connection error of type H3_FRAME_UNEXPECTED; see Section 8. In
particular, a DATA frame before any HEADERS frame, or a HEADERS or
DATA frame after the trailing HEADERS frame, is considered invalid.
A CANCEL_PUSH frame is sent on the control stream. Receiving a
CANCEL_PUSH frame on a stream other than the control stream MUST be
treated as a connection error of type H3_FRAME_UNEXPECTED.
The GOAWAY frame is always sent on the control stream.
author | Roman Arutyunyan <arut@nginx.com> |
---|---|
date | Fri, 11 Jun 2021 12:11:08 +0300 |
parents | 646985c55393 |
children |
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/* * Copyright (C) Igor Sysoev * Copyright (C) Nginx, Inc. */ #include <ngx_config.h> #include <ngx_core.h> #include <ngx_event.h> #if (NGX_TEST_BUILD_SOLARIS_SENDFILEV) /* Solaris declarations */ typedef struct sendfilevec { int sfv_fd; u_int sfv_flag; off_t sfv_off; size_t sfv_len; } sendfilevec_t; #define SFV_FD_SELF -2 static ssize_t sendfilev(int fd, const struct sendfilevec *vec, int sfvcnt, size_t *xferred) { return -1; } ngx_chain_t *ngx_solaris_sendfilev_chain(ngx_connection_t *c, ngx_chain_t *in, off_t limit); #endif #define NGX_SENDFILEVECS NGX_IOVS_PREALLOCATE ngx_chain_t * ngx_solaris_sendfilev_chain(ngx_connection_t *c, ngx_chain_t *in, off_t limit) { int fd; u_char *prev; off_t size, send, prev_send, aligned, fprev; size_t sent; ssize_t n; ngx_int_t eintr; ngx_err_t err; ngx_buf_t *file; ngx_uint_t nsfv; sendfilevec_t *sfv, sfvs[NGX_SENDFILEVECS]; ngx_event_t *wev; ngx_chain_t *cl; wev = c->write; if (!wev->ready) { return in; } if (!c->sendfile) { return ngx_writev_chain(c, in, limit); } /* the maximum limit size is the maximum size_t value - the page size */ if (limit == 0 || limit > (off_t) (NGX_MAX_SIZE_T_VALUE - ngx_pagesize)) { limit = NGX_MAX_SIZE_T_VALUE - ngx_pagesize; } send = 0; for ( ;; ) { fd = SFV_FD_SELF; prev = NULL; fprev = 0; file = NULL; sfv = NULL; eintr = 0; sent = 0; prev_send = send; nsfv = 0; /* create the sendfilevec and coalesce the neighbouring bufs */ for (cl = in; cl && send < limit; cl = cl->next) { if (ngx_buf_special(cl->buf)) { continue; } if (ngx_buf_in_memory_only(cl->buf)) { fd = SFV_FD_SELF; size = cl->buf->last - cl->buf->pos; if (send + size > limit) { size = limit - send; } if (prev == cl->buf->pos) { sfv->sfv_len += (size_t) size; } else { if (nsfv == NGX_SENDFILEVECS) { break; } sfv = &sfvs[nsfv++]; sfv->sfv_fd = SFV_FD_SELF; sfv->sfv_flag = 0; sfv->sfv_off = (off_t) (uintptr_t) cl->buf->pos; sfv->sfv_len = (size_t) size; } prev = cl->buf->pos + (size_t) size; send += size; } else { prev = NULL; size = cl->buf->file_last - cl->buf->file_pos; if (send + size > limit) { size = limit - send; aligned = (cl->buf->file_pos + size + ngx_pagesize - 1) & ~((off_t) ngx_pagesize - 1); if (aligned <= cl->buf->file_last) { size = aligned - cl->buf->file_pos; } } if (fd == cl->buf->file->fd && fprev == cl->buf->file_pos) { sfv->sfv_len += (size_t) size; } else { if (nsfv == NGX_SENDFILEVECS) { break; } sfv = &sfvs[nsfv++]; fd = cl->buf->file->fd; sfv->sfv_fd = fd; sfv->sfv_flag = 0; sfv->sfv_off = cl->buf->file_pos; sfv->sfv_len = (size_t) size; } file = cl->buf; fprev = cl->buf->file_pos + size; send += size; } } n = sendfilev(c->fd, sfvs, nsfv, &sent); if (n == -1) { err = ngx_errno; switch (err) { case NGX_EAGAIN: break; case NGX_EINTR: eintr = 1; break; default: wev->error = 1; ngx_connection_error(c, err, "sendfilev() failed"); return NGX_CHAIN_ERROR; } ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, err, "sendfilev() sent only %uz bytes", sent); } else if (n == 0 && sent == 0) { /* * sendfilev() is documented to return -1 with errno * set to EINVAL if svf_len is greater than the file size, * but at least Solaris 11 returns 0 instead */ if (file) { ngx_log_error(NGX_LOG_ALERT, c->log, 0, "sendfilev() reported that \"%s\" was truncated at %O", file->file->name.data, file->file_pos); } else { ngx_log_error(NGX_LOG_ALERT, c->log, 0, "sendfilev() returned 0 with memory buffers"); } return NGX_CHAIN_ERROR; } ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0, "sendfilev: %z %z", n, sent); c->sent += sent; in = ngx_chain_update_sent(in, sent); if (eintr) { send = prev_send + sent; continue; } if (send - prev_send != (off_t) sent) { wev->ready = 0; return in; } if (send >= limit || in == NULL) { return in; } } }