forked from mirrors/kore
lots of new stuff, including processing of http requests and an attempt
to build an initial spdy response (SYN frame + header block content).
This commit is contained in:
Joris Vink
parent
4fc434e909
commit
848704f74b
2
Makefile
2
Makefile
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@ -10,7 +10,7 @@ CFLAGS+=-I/usr/local/ssl/include
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CFLAGS+=-Wall -Wstrict-prototypes -Wmissing-prototypes
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CFLAGS+=-Wmissing-declarations -Wshadow -Wpointer-arith -Wcast-qual
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CFLAGS+=-Wsign-compare -Iincludes -g
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LDFLAGS=-static -Llibs -lssl -lcrypto -ldl -lz
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LDFLAGS=-Llibs -lssl -lcrypto -ldl -lz
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light: $(S_OBJS)
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$(CC) $(CFLAGS) $(S_OBJS) $(LDFLAGS) -o $(BIN)
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@ -28,4 +28,12 @@ struct http_request {
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TAILQ_ENTRY(http_request) list;
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};
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void http_init(void);
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void http_process(void);
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void http_request_free(struct http_request *);
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int http_response(struct http_request *, int,
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u_int8_t *, u_int32_t);
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int http_new_request(struct connection *, struct spdy_stream *,
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char *, char *, char *);
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#endif /* !__H_HTTP_H */
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@ -65,6 +65,7 @@ struct connection {
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TAILQ_HEAD(, netbuf) send_queue;
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TAILQ_HEAD(, netbuf) recv_queue;
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u_int32_t client_stream_id;
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TAILQ_HEAD(, spdy_stream) spdy_streams;
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};
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@ -73,12 +74,15 @@ void *kore_calloc(size_t, size_t);
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void *kore_realloc(void *, size_t);
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char *kore_strdup(const char *);
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void kore_strlcpy(char *, const char *, size_t);
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void kore_server_disconnect(struct connection *);
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void fatal(const char *, ...);
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void kore_log_internal(char *, int, const char *, ...);
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u_int16_t net_read16(u_int8_t *);
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u_int32_t net_read32(u_int8_t *);
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void net_write16(u_int8_t *, u_int16_t);
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void net_write32(u_int8_t *, u_int32_t);
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int net_recv(struct connection *);
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int net_send(struct connection *);
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int net_recv_queue(struct connection *, size_t,
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@ -88,10 +92,9 @@ int net_recv_expand(struct connection *c, struct netbuf *, size_t,
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int net_send_queue(struct connection *, u_int8_t *, size_t,
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int (*cb)(struct netbuf *));
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int http_new_request(struct connection *, struct spdy_stream *,
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char *, char *, char *);
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int spdy_frame_recv(struct netbuf *);
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int spdy_frame_recv(struct netbuf *);
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int spdy_frame_send(struct connection *, u_int16_t,
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u_int8_t, u_int32_t, u_int32_t, u_int8_t *);
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struct spdy_stream *spdy_stream_lookup(struct connection *, u_int32_t);
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#endif /* !__H_KORE_H */
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@ -38,15 +38,19 @@ struct spdy_syn_stream {
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u_int8_t prio;
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};
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struct spdy_header_block {
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u_int8_t *header_block;
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u_int32_t header_block_len;
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u_int32_t header_offset;
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u_int32_t header_pairs;
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};
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struct spdy_stream {
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u_int32_t stream_id;
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u_int8_t flags;
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u_int8_t prio;
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u_int8_t *header_block;
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u_int32_t header_block_len;
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u_int32_t header_pairs;
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struct spdy_header_block *hblock;
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TAILQ_ENTRY(spdy_stream) list;
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};
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@ -62,10 +66,20 @@ extern const unsigned char SPDY_dictionary_txt[];
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/* control frames */
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#define SPDY_CTRL_FRAME_SYN_STREAM 1
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#define SPDY_CTRL_FRAME_SYN_REPLY 2
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#define SPDY_CTRL_FRAME_SETTINGS 4
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#define SPDY_DATA_FRAME 99
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/* flags */
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#define FLAG_FIN 0x01
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#define FLAG_UNIDIRECTIONAL 0x02
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#define SPDY_HBLOCK_NORMAL 0
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#define SPDY_HBLOCK_DELAYED_ALLOC 1
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struct spdy_header_block *spdy_header_block_create(int);
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void spdy_header_block_add(struct spdy_header_block *, char *, char *);
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u_int8_t *spdy_header_block_release(struct spdy_header_block *, u_int32_t *);
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#endif /* !__H_SPDY_H */
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100
src/http.c
100
src/http.c
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@ -36,12 +36,112 @@
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#include "kore.h"
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#include "http.h"
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TAILQ_HEAD(, http_request) http_requests;
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static int http_generic_cb(struct http_request *);
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void
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http_init(void)
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{
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TAILQ_INIT(&http_requests);
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}
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int
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http_new_request(struct connection *c, struct spdy_stream *s, char *host,
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char *method, char *path)
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{
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struct http_request *req;
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kore_log("http_new_request(%p, %p, %s, %s, %s)", c, s,
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host, method, path);
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req = (struct http_request *)kore_malloc(sizeof(*req));
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req->owner = c;
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req->stream = s;
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req->host = kore_strdup(host);
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req->path = kore_strdup(path);
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req->method = kore_strdup(method);
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TAILQ_INSERT_TAIL(&http_requests, req, list);
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return (KORE_RESULT_OK);
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}
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void
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http_request_free(struct http_request *req)
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{
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free(req->method);
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free(req->path);
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free(req->host);
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free(req);
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}
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int
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http_response(struct http_request *req, int status, u_int8_t *d, u_int32_t len)
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{
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u_int32_t hlen;
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u_int8_t *htext;
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struct spdy_header_block *hblock;
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kore_log("http_response(%p, %d, %p, %d)", req, status, d, len);
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if (req->stream != NULL) {
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hblock = spdy_header_block_create(SPDY_HBLOCK_NORMAL);
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spdy_header_block_add(hblock, ":status", "200");
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spdy_header_block_add(hblock, ":version", "HTTP/1.1");
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spdy_header_block_add(hblock, "content-type", "text/plain");
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if ((htext = spdy_header_block_release(hblock, &hlen)) == NULL)
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return (KORE_RESULT_ERROR);
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kore_log("deflated is %d bytes", hlen);
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if (!spdy_frame_send(req->owner, SPDY_CTRL_FRAME_SYN_REPLY,
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0, hlen, req->stream->stream_id, NULL))
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return (KORE_RESULT_ERROR);
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if (!net_send_queue(req->owner, htext, hlen, NULL))
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return (KORE_RESULT_ERROR);
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#if 0
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if (!spdy_frame_send(req->owner, SPDY_DATA_FRAME, 0, len,
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req->stream->stream_id, d))
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return (KORE_RESULT_ERROR);
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#endif
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} else {
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kore_log("normal http not functional yet");
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}
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return (KORE_RESULT_OK);
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}
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void
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http_process(void)
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{
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struct http_request *req, *next;
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if (TAILQ_EMPTY(&http_requests))
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return;
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kore_log("http_process()");
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for (req = TAILQ_FIRST(&http_requests); req != NULL; req = next) {
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next = TAILQ_NEXT(req, list);
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/* XXX - add module hooks here */
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if (!http_generic_cb(req))
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kore_server_disconnect(req->owner);
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TAILQ_REMOVE(&http_requests, req, list);
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http_request_free(req);
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}
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}
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static int
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http_generic_cb(struct http_request *req)
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{
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u_int32_t len;
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kore_log("http_generic_cb(%s, %s, %s)",
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req->host, req->method, req->path);
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len = strlen("<p>Hello world</p>");
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return (http_response(req, 200, (u_int8_t *)"<p>Hello world</p>", len));
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}
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15
src/kore.c
15
src/kore.c
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@ -35,6 +35,7 @@
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#include "spdy.h"
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#include "kore.h"
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#include "http.h"
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#define EPOLL_EVENTS 500
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@ -45,7 +46,6 @@ static int kore_socket_nonblock(int);
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static int kore_server_sslstart(void);
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static void kore_event(int, int, void *);
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static int kore_server_accept(struct listener *);
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static void kore_server_disconnect(struct connection *);
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static int kore_connection_handle(struct connection *, int);
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static int kore_server_bind(struct listener *, const char *, int);
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static int kore_ssl_npn_cb(SSL *, const u_char **, unsigned int *, void *);
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@ -69,15 +69,18 @@ main(int argc, char *argv[])
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if ((efd = epoll_create(1000)) == -1)
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fatal("epoll_create(): %s", errno_s);
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http_init();
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kore_event(server.fd, EPOLLIN, &server);
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events = kore_calloc(EPOLL_EVENTS, sizeof(struct epoll_event));
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for (;;) {
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kore_log("main(): epoll_wait()");
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n = epoll_wait(efd, events, EPOLL_EVENTS, -1);
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n = epoll_wait(efd, events, EPOLL_EVENTS, 10);
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if (n == -1)
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fatal("epoll_wait(): %s", errno_s);
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kore_log("main(): %d sockets available", n);
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if (n > 0)
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kore_log("main(): %d sockets available", n);
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for (i = 0; i < n; i++) {
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fd = (int *)events[i].data.ptr;
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@ -100,6 +103,8 @@ main(int argc, char *argv[])
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kore_server_disconnect(c);
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}
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}
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http_process();
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}
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close(server.fd);
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@ -210,7 +215,7 @@ kore_server_accept(struct listener *l)
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return (KORE_RESULT_OK);
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}
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static void
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void
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kore_server_disconnect(struct connection *c)
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{
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struct netbuf *nb, *next;
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14
src/net.c
14
src/net.c
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@ -109,7 +109,9 @@ net_send(struct connection *c)
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return (KORE_RESULT_OK);
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nb = TAILQ_FIRST(&(c->send_queue));
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kore_log("nb is %p (%d/%d bytes)", nb, nb->offset, nb->len);
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r = SSL_write(c->ssl, (nb->buf + nb->offset), (nb->len - nb->offset));
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kore_log("SSL_write(): %d bytes", r);
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if (r <= 0) {
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r = SSL_get_error(c->ssl, r);
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switch (r) {
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@ -214,3 +216,15 @@ net_read32(u_int8_t *b)
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r = *(u_int32_t *)b;
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return (ntohl(r));
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}
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void
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net_write16(u_int8_t *p, u_int16_t n)
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{
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*p = htons(n);
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}
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void
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net_write32(u_int8_t *p, u_int32_t n)
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{
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*p = htonl(n);
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}
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156
src/spdy.c
156
src/spdy.c
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@ -39,7 +39,7 @@
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static int spdy_ctrl_frame_syn_stream(struct netbuf *);
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static int spdy_ctrl_frame_settings(struct netbuf *);
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static int spdy_stream_get_header(struct spdy_stream *,
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static int spdy_stream_get_header(struct spdy_header_block *,
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char *, char **);
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static int spdy_zlib_inflate(u_int8_t *, size_t,
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@ -93,6 +93,35 @@ spdy_frame_recv(struct netbuf *nb)
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return (r);
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}
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int
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spdy_frame_send(struct connection *c, u_int16_t type, u_int8_t flags,
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u_int32_t len, u_int32_t stream_id, u_int8_t *data)
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{
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u_int8_t nb[12];
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u_int32_t length;
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kore_log("spdy_frame_send(%p, %d, %d, %d, %d, %p)", c, type, flags,
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len, stream_id, data);
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length = 0;
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memset(nb, 0, sizeof(nb));
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switch (type) {
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case SPDY_CTRL_FRAME_SYN_REPLY:
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net_write16(&nb[0], 3);
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nb[0] |= (1 << 7);
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net_write16(&nb[2], type);
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net_write32(&nb[4], len + 4);
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nb[4] = flags;
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net_write32(&nb[8], stream_id);
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length = 12;
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break;
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case SPDY_DATA_FRAME:
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break;
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}
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return (net_send_queue(c, nb, length, NULL));
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}
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struct spdy_stream *
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spdy_stream_lookup(struct connection *c, u_int32_t id)
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{
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@ -106,6 +135,86 @@ spdy_stream_lookup(struct connection *c, u_int32_t id)
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return (NULL);
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}
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struct spdy_header_block *
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spdy_header_block_create(int delayed_alloc)
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{
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struct spdy_header_block *hblock;
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kore_log("spdy_header_block_create()");
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hblock = (struct spdy_header_block *)kore_malloc(sizeof(*hblock));
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if (delayed_alloc == SPDY_HBLOCK_NORMAL) {
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hblock->header_block = (u_int8_t *)kore_malloc(128);
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hblock->header_block_len = 128;
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} else {
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hblock->header_block = NULL;
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hblock->header_block_len = 0;
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}
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hblock->header_pairs = 0;
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hblock->header_offset = 0;
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return (hblock);
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}
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void
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spdy_header_block_add(struct spdy_header_block *hblock, char *name, char *value)
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{
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u_int8_t *p;
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char *out;
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u_int32_t nlen, vlen;
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kore_log("spdy_header_block_add(%p, %s, %s)", hblock, name, value);
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nlen = strlen(name);
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vlen = strlen(value);
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if ((nlen + vlen + hblock->header_offset) > hblock->header_block_len) {
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hblock->header_block_len += nlen + vlen + 128;
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hblock->header_block =
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(u_int8_t *)kore_realloc(hblock->header_block,
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hblock->header_block_len);
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}
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p = hblock->header_block + hblock->header_offset;
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net_write32(p, nlen);
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memcpy((p + 4), (u_int8_t *)name, nlen);
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hblock->header_offset += 4 + nlen;
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p = hblock->header_block + hblock->header_offset;
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net_write32(p, vlen);
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memcpy((p + 4), (u_int8_t *)value, vlen);
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hblock->header_offset += 4 + vlen;
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hblock->header_pairs++;
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if (!spdy_stream_get_header(hblock, name, &out)) {
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kore_log("cannot find newly inserted header %s", name);
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} else {
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kore_log("found header (%s, %s) as %s", name, value, out);
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free(out);
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}
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}
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u_int8_t *
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spdy_header_block_release(struct spdy_header_block *hblock, u_int32_t *len)
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{
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u_int8_t *deflated;
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kore_log("spdy_header_block_release(%p, %p)", hblock, len);
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if (!spdy_zlib_deflate(hblock->header_block, hblock->header_offset,
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&deflated, len)) {
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free(hblock->header_block);
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free(hblock);
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return (NULL);
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}
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free(hblock->header_block);
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free(hblock);
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return (deflated);
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}
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static int
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spdy_ctrl_frame_syn_stream(struct netbuf *nb)
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{
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@ -126,13 +235,20 @@ spdy_ctrl_frame_syn_stream(struct netbuf *nb)
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syn.prio = net_read16(nb->buf + 16) & 0xe000;
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syn.slot = net_read16(nb->buf + 16) & 0x7;
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/* XXX need to send protocol errors here? */
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/* XXX need to send protocol error. */
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if ((syn.stream_id % 2) == 0 || syn.stream_id == 0) {
|
||||
kore_log("client sent incorrect id for SPDY_SYN_STREAM (%d)",
|
||||
syn.stream_id);
|
||||
return (KORE_RESULT_ERROR);
|
||||
}
|
||||
|
||||
/* XXX need to send protocol error. */
|
||||
if (syn.stream_id < c->client_stream_id) {
|
||||
kore_log("client sent incorrect id SPDY_SYN_STREAM (%d < %d)",
|
||||
syn.stream_id, c->client_stream_id);
|
||||
return (KORE_RESULT_ERROR);
|
||||
}
|
||||
|
||||
if ((s = spdy_stream_lookup(c, syn.stream_id)) != NULL) {
|
||||
kore_log("duplicate SPDY_SYN_STREAM (%d)", syn.stream_id);
|
||||
return (KORE_RESULT_ERROR);
|
||||
|
|
@ -142,28 +258,29 @@ spdy_ctrl_frame_syn_stream(struct netbuf *nb)
|
|||
s->prio = syn.prio;
|
||||
s->flags = ctrl.flags;
|
||||
s->stream_id = syn.stream_id;
|
||||
s->header_block_len = 0;
|
||||
s->header_block = NULL;
|
||||
s->hblock = spdy_header_block_create(SPDY_HBLOCK_DELAYED_ALLOC);
|
||||
|
||||
src = (nb->buf + SPDY_FRAME_SIZE + SPDY_SYNFRAME_SIZE);
|
||||
kore_log("compressed headers are %d bytes long", ctrl.length - 10);
|
||||
if (!spdy_zlib_inflate(src, (ctrl.length - SPDY_SYNFRAME_SIZE),
|
||||
&(s->header_block), &(s->header_block_len))) {
|
||||
free(s->header_block);
|
||||
&(s->hblock->header_block), &(s->hblock->header_block_len))) {
|
||||
free(s->hblock->header_block);
|
||||
free(s->hblock);
|
||||
free(s);
|
||||
return (KORE_RESULT_ERROR);
|
||||
}
|
||||
|
||||
s->header_pairs = net_read32(s->header_block);
|
||||
kore_log("got %d headers", s->header_pairs);
|
||||
s->hblock->header_pairs = net_read32(s->hblock->header_block);
|
||||
kore_log("got %d headers", s->hblock->header_pairs);
|
||||
|
||||
path = NULL;
|
||||
host = NULL;
|
||||
method = NULL;
|
||||
|
||||
#define GET_HEADER(n, r) \
|
||||
if (!spdy_stream_get_header(s, n, r)) { \
|
||||
free(s->header_block); \
|
||||
if (!spdy_stream_get_header(s->hblock, n, r)) { \
|
||||
free(s->hblock->header_block); \
|
||||
free(s->hblock); \
|
||||
free(s); \
|
||||
kore_log("no such header: %s", n); \
|
||||
if (path != NULL) \
|
||||
|
|
@ -179,7 +296,8 @@ spdy_ctrl_frame_syn_stream(struct netbuf *nb)
|
|||
GET_HEADER(":method", &method);
|
||||
GET_HEADER(":host", &host);
|
||||
if (!http_new_request(c, s, host, method, path)) {
|
||||
free(s->header_block);
|
||||
free(s->hblock->header_block);
|
||||
free(s->hblock);
|
||||
free(s);
|
||||
return (KORE_RESULT_ERROR);
|
||||
}
|
||||
|
|
@ -188,6 +306,7 @@ spdy_ctrl_frame_syn_stream(struct netbuf *nb)
|
|||
free(method);
|
||||
free(host);
|
||||
|
||||
c->client_stream_id = s->stream_id;
|
||||
TAILQ_INSERT_TAIL(&(c->spdy_streams), s, list);
|
||||
kore_log("SPDY_SYN_STREAM: %d:%d:%d", s->stream_id, s->flags, s->prio);
|
||||
|
||||
|
|
@ -207,16 +326,27 @@ spdy_ctrl_frame_settings(struct netbuf *nb)
|
|||
}
|
||||
|
||||
static int
|
||||
spdy_stream_get_header(struct spdy_stream *s, char *header, char **out)
|
||||
spdy_stream_get_header(struct spdy_header_block *s, char *header, char **out)
|
||||
{
|
||||
u_int8_t *p;
|
||||
char *cmp;
|
||||
u_int8_t *p, *end;
|
||||
u_int32_t i, nlen, vlen;
|
||||
|
||||
end = s->header_block + s->header_block_len;
|
||||
|
||||
p = s->header_block + 4;
|
||||
for (i = 0; i < s->header_pairs; i++) {
|
||||
nlen = net_read32(p);
|
||||
if ((p + nlen + 4) >= end) {
|
||||
kore_log("nlen out of bounds (%d)", nlen);
|
||||
return (KORE_RESULT_ERROR);
|
||||
}
|
||||
|
||||
vlen = net_read32(p + nlen + 4);
|
||||
if ((p + nlen + vlen + 8) >= end) {
|
||||
kore_log("vlen out of bounds (%d)", vlen);
|
||||
return (KORE_RESULT_ERROR);
|
||||
}
|
||||
|
||||
cmp = (char *)(p + 4);
|
||||
if (!strncasecmp(cmp, header, nlen)) {
|
||||
|
|
|
|||
Loading…
Reference in New Issue