int nghttp2_submit_priority(nghttp2_session *session, uint8_t flags _U_, int32_t stream_id, const nghttp2_priority_spec *pri_spec) { int rv; nghttp2_outbound_item *item; nghttp2_frame *frame; nghttp2_priority_spec copy_pri_spec; nghttp2_mem *mem; mem = &session->mem; if (stream_id == 0 || pri_spec == NULL) { return NGHTTP2_ERR_INVALID_ARGUMENT; } if (stream_id == pri_spec->stream_id) { return NGHTTP2_ERR_INVALID_ARGUMENT; } copy_pri_spec = *pri_spec; nghttp2_priority_spec_normalize_weight(©_pri_spec); item = nghttp2_mem_malloc(mem, sizeof(nghttp2_outbound_item)); if (item == NULL) { return NGHTTP2_ERR_NOMEM; } nghttp2_outbound_item_init(item); frame = &item->frame; nghttp2_frame_priority_init(&frame->priority, stream_id, ©_pri_spec); rv = nghttp2_session_add_item(session, item); if (rv != 0) { nghttp2_frame_priority_free(&frame->priority); nghttp2_mem_free(mem, item); return rv; } return 0; }
int nghttp2_submit_data(nghttp2_session *session, uint8_t flags, int32_t stream_id, const nghttp2_data_provider *data_prd) { int rv; nghttp2_outbound_item *item; nghttp2_frame *frame; nghttp2_data_aux_data *aux_data; uint8_t nflags = flags & NGHTTP2_FLAG_END_STREAM; nghttp2_mem *mem; mem = &session->mem; if (stream_id == 0) { return NGHTTP2_ERR_INVALID_ARGUMENT; } item = nghttp2_mem_malloc(mem, sizeof(nghttp2_outbound_item)); if (item == NULL) { return NGHTTP2_ERR_NOMEM; } nghttp2_outbound_item_init(item); frame = &item->frame; aux_data = &item->aux_data.data; aux_data->data_prd = *data_prd; aux_data->eof = 0; aux_data->flags = nflags; /* flags are sent on transmission */ nghttp2_frame_data_init(&frame->data, NGHTTP2_FLAG_NONE, stream_id); rv = nghttp2_session_add_item(session, item); if (rv != 0) { nghttp2_frame_data_free(&frame->data); nghttp2_mem_free(mem, item); return rv; } return 0; }
int nghttp2_submit_extension(nghttp2_session *session, uint8_t type, uint8_t flags, int32_t stream_id, void *payload) { int rv; nghttp2_outbound_item *item; nghttp2_frame *frame; nghttp2_mem *mem; mem = &session->mem; if (type <= NGHTTP2_CONTINUATION) { return NGHTTP2_ERR_INVALID_ARGUMENT; } if (!session->callbacks.pack_extension_callback) { return NGHTTP2_ERR_INVALID_STATE; } item = nghttp2_mem_malloc(mem, sizeof(nghttp2_outbound_item)); if (item == NULL) { return NGHTTP2_ERR_NOMEM; } nghttp2_outbound_item_init(item); frame = &item->frame; nghttp2_frame_extension_init(&frame->ext, type, flags, stream_id, payload); rv = nghttp2_session_add_item(session, item); if (rv != 0) { nghttp2_frame_extension_free(&frame->ext); nghttp2_mem_free(mem, item); return rv; } return 0; }
/* This function takes ownership of |nva_copy|. Regardless of the return value, the caller must not free |nva_copy| after this function returns. */ static int32_t submit_headers_shared(nghttp2_session *session, uint8_t flags, int32_t stream_id, const nghttp2_priority_spec *pri_spec, nghttp2_nv *nva_copy, size_t nvlen, const nghttp2_data_provider *data_prd, void *stream_user_data) { int rv; uint8_t flags_copy; nghttp2_outbound_item *item = NULL; nghttp2_frame *frame = NULL; nghttp2_headers_category hcat; nghttp2_mem *mem; mem = &session->mem; if (stream_id == 0) { rv = NGHTTP2_ERR_INVALID_ARGUMENT; goto fail; } if (stream_id == -1) { if ((int32_t)session->next_stream_id == pri_spec->stream_id) { rv = NGHTTP2_ERR_INVALID_ARGUMENT; goto fail; } } else if (stream_id == pri_spec->stream_id) { rv = NGHTTP2_ERR_INVALID_ARGUMENT; goto fail; } item = nghttp2_mem_malloc(mem, sizeof(nghttp2_outbound_item)); if (item == NULL) { rv = NGHTTP2_ERR_NOMEM; goto fail; } nghttp2_outbound_item_init(item); if (data_prd != NULL && data_prd->read_callback != NULL) { item->aux_data.headers.data_prd = *data_prd; } item->aux_data.headers.stream_user_data = stream_user_data; flags_copy = (uint8_t)((flags & (NGHTTP2_FLAG_END_STREAM | NGHTTP2_FLAG_PRIORITY)) | NGHTTP2_FLAG_END_HEADERS); if (stream_id == -1) { if (session->next_stream_id > INT32_MAX) { rv = NGHTTP2_ERR_STREAM_ID_NOT_AVAILABLE; goto fail; } stream_id = (int32_t)session->next_stream_id; session->next_stream_id += 2; hcat = NGHTTP2_HCAT_REQUEST; } else { /* More specific categorization will be done later. */ hcat = NGHTTP2_HCAT_HEADERS; } frame = &item->frame; nghttp2_frame_headers_init(&frame->headers, flags_copy, stream_id, hcat, pri_spec, nva_copy, nvlen); rv = nghttp2_session_add_item(session, item); if (rv != 0) { nghttp2_frame_headers_free(&frame->headers, mem); goto fail2; } if (hcat == NGHTTP2_HCAT_REQUEST) { return stream_id; } return 0; fail: /* nghttp2_frame_headers_init() takes ownership of nva_copy. */ nghttp2_nv_array_del(nva_copy, mem); fail2: nghttp2_mem_free(mem, item); return rv; }
int32_t nghttp2_submit_push_promise(nghttp2_session *session, uint8_t flags _U_, int32_t stream_id, const nghttp2_nv *nva, size_t nvlen, void *promised_stream_user_data) { nghttp2_outbound_item *item; nghttp2_frame *frame; nghttp2_nv *nva_copy; uint8_t flags_copy; int32_t promised_stream_id; int rv; nghttp2_mem *mem; mem = &session->mem; if (stream_id == 0 || nghttp2_session_is_my_stream_id(session, stream_id)) { return NGHTTP2_ERR_INVALID_ARGUMENT; } if (!session->server) { return NGHTTP2_ERR_PROTO; } /* All 32bit signed stream IDs are spent. */ if (session->next_stream_id > INT32_MAX) { return NGHTTP2_ERR_STREAM_ID_NOT_AVAILABLE; } item = nghttp2_mem_malloc(mem, sizeof(nghttp2_outbound_item)); if (item == NULL) { return NGHTTP2_ERR_NOMEM; } nghttp2_outbound_item_init(item); item->aux_data.headers.stream_user_data = promised_stream_user_data; frame = &item->frame; rv = nghttp2_nv_array_copy(&nva_copy, nva, nvlen, mem); if (rv < 0) { nghttp2_mem_free(mem, item); return rv; } flags_copy = NGHTTP2_FLAG_END_HEADERS; promised_stream_id = (int32_t)session->next_stream_id; session->next_stream_id += 2; nghttp2_frame_push_promise_init(&frame->push_promise, flags_copy, stream_id, promised_stream_id, nva_copy, nvlen); rv = nghttp2_session_add_item(session, item); if (rv != 0) { nghttp2_frame_push_promise_free(&frame->push_promise, mem); nghttp2_mem_free(mem, item); return rv; } return promised_stream_id; }
int nghttp2_submit_altsvc(nghttp2_session *session, uint8_t flags _U_, int32_t stream_id, const uint8_t *origin, size_t origin_len, const uint8_t *field_value, size_t field_value_len) { nghttp2_mem *mem; uint8_t *buf, *p; uint8_t *origin_copy; uint8_t *field_value_copy; nghttp2_outbound_item *item; nghttp2_frame *frame; nghttp2_ext_altsvc *altsvc; int rv; mem = &session->mem; if (!session->server) { return NGHTTP2_ERR_INVALID_STATE; } if (2 + origin_len + field_value_len > NGHTTP2_MAX_PAYLOADLEN) { return NGHTTP2_ERR_INVALID_ARGUMENT; } if (stream_id == 0) { if (origin_len == 0) { return NGHTTP2_ERR_INVALID_ARGUMENT; } } else if (origin_len != 0) { return NGHTTP2_ERR_INVALID_ARGUMENT; } buf = nghttp2_mem_malloc(mem, origin_len + field_value_len + 2); if (buf == NULL) { return NGHTTP2_ERR_NOMEM; } p = buf; origin_copy = p; if (origin_len) { p = nghttp2_cpymem(p, origin, origin_len); } *p++ = '\0'; field_value_copy = p; if (field_value_len) { p = nghttp2_cpymem(p, field_value, field_value_len); } *p++ = '\0'; item = nghttp2_mem_malloc(mem, sizeof(nghttp2_outbound_item)); if (item == NULL) { rv = NGHTTP2_ERR_NOMEM; goto fail_item_malloc; } nghttp2_outbound_item_init(item); item->aux_data.ext.builtin = 1; altsvc = &item->ext_frame_payload.altsvc; frame = &item->frame; frame->ext.payload = altsvc; nghttp2_frame_altsvc_init(&frame->ext, stream_id, origin_copy, origin_len, field_value_copy, field_value_len); rv = nghttp2_session_add_item(session, item); if (rv != 0) { nghttp2_frame_altsvc_free(&frame->ext, mem); nghttp2_mem_free(mem, item); return rv; } return 0; fail_item_malloc: free(buf); return rv; }