From 807268084f8cf4b02aaaa7ece7071a276c9d61bc Mon Sep 17 00:00:00 2001 From: Jacob Potter Date: Tue, 2 Dec 2008 01:57:37 -0500 Subject: [PATCH 1/1] rfb negotiation now works --- net/net.c | 4 +-- net/rfb.c | 88 ++++++++++++++++++++++++++++++++++++++++++------------- 2 files changed, 70 insertions(+), 22 deletions(-) diff --git a/net/net.c b/net/net.c index 5b4072b..7fa7c46 100644 --- a/net/net.c +++ b/net/net.c @@ -162,7 +162,7 @@ void eth_init() smram_tseg_set_state(SMRAM_TSEG_OPEN); lwip_init(); httpd_init(); -/* + rfb_init(); -*/ + } diff --git a/net/rfb.c b/net/rfb.c index 65323d1..4f272cc 100644 --- a/net/rfb.c +++ b/net/rfb.c @@ -14,7 +14,7 @@ #define POINTER_EVENT 5 #define CLIENT_CUT_TEXT 6 -#define RFB_BUF_SIZE 2048 +#define RFB_BUF_SIZE 64 struct pixel_format { uint8_t bpp; @@ -91,29 +91,31 @@ struct rfb_state { char next_update_incremental; struct fb_update_req client_interest_area; - int needs_updated; + uint8_t needs_updated; + uint8_t sending; }; static struct server_init_message server_info; static void init_server_info() { - server_info.name_length = 8; + server_info.name_length = htonl(8); memcpy(server_info.name_string, "NetWatch", 8); } static void update_server_info() { if (fb != NULL) { - server_info.fb_width = fb->curmode.xres; - server_info.fb_height = fb->curmode.yres; + outputf("RFB: setting fmt %d", fb->curmode.format); + server_info.fb_width = htons(fb->curmode.xres); + server_info.fb_height = htons(fb->curmode.yres); switch (fb->curmode.format) { case FB_RGB888: server_info.fmt.bpp = 32; server_info.fmt.depth = 24; server_info.fmt.big_endian = 0; server_info.fmt.true_color = 1; - server_info.fmt.red_max = 255; - server_info.fmt.green_max = 255; - server_info.fmt.blue_max = 255; + server_info.fmt.red_max = htons(255); + server_info.fmt.green_max = htons(255); + server_info.fmt.blue_max = htons(255); server_info.fmt.red_shift = 0; server_info.fmt.green_shift = 8; server_info.fmt.blue_shift = 16; @@ -122,9 +124,15 @@ static void update_server_info() { outputf("RFB: unknown fb fmt %d", fb->curmode.format); break; } + } else { + outputf("RFB: fb null"); } } +static void start_send(struct tcp_pcb *pcb, struct rfb_state *state) { + /* ... */ +} + static void close_conn(struct tcp_pcb *pcb, struct rfb_state *state) { tcp_arg(pcb, NULL); tcp_sent(pcb, NULL); @@ -140,6 +148,11 @@ enum fsm_result { }; static enum fsm_result recv_fsm(struct tcp_pcb *pcb, struct rfb_state *state) { + int i; + int pktsize; + + outputf("RFB FSM: st %d rp %d wp %d", state->state, state->readpos, + state->writepos); switch(state->state) { case ST_BEGIN: @@ -165,24 +178,32 @@ static enum fsm_result recv_fsm(struct tcp_pcb *pcb, struct rfb_state *state) { state->readpos += 12; state->state = ST_CLIENTINIT; - /* We support one security type, currently "none". */ + /* We support one security type, currently "none". + * Send that and SecurityResult. */ if (state->version >= 7) { - tcp_write(pcb, "\x01\x01", 2, 0); + tcp_write(pcb, "\x01\x01\x00\x00\x00\x00", 6, 0); } else { - tcp_write(pcb, "\x01", 1, 0); + tcp_write(pcb, "\x01\x00\x00\x00\x00", 5, 0); } - /* ... and go right ahead and send SecurityResult message. */ - tcp_write(pcb, "\x00\x00\x00\x01", 4, 0); tcp_output(pcb); return OK; case ST_CLIENTINIT: - if (state->writepos < 1) return NEEDMORE; - state->readpos += 1; + if (state->version >= 7) { + /* Ignore the security type and ClientInit */ + if (state->writepos < 2) return NEEDMORE; + state->readpos += 2; + } else { + /* Just ClientInit */ + if (state->writepos < 1) return NEEDMORE; + state->readpos += 1; + } + state->state = ST_MAIN; + outputf("RFB: Sending server info", state->version); tcp_write(pcb, &server_info, sizeof(server_info), 0); tcp_output(pcb); @@ -191,12 +212,14 @@ static enum fsm_result recv_fsm(struct tcp_pcb *pcb, struct rfb_state *state) { case ST_MAIN: if (state->writepos < 1) return NEEDMORE; + outputf("RFB: cmd %d", state->data[0]); switch (state->data[0]) { case SET_PIXEL_FORMAT: /* SetPixelFormat */ if (state->writepos < (sizeof(struct pixel_format) + 4)) return NEEDMORE; + outputf("RFB: SetPixelFormat"); /* struct pixel_format * new_fmt = (struct pixel_format *)(&state->data[4]); @@ -211,18 +234,24 @@ static enum fsm_result recv_fsm(struct tcp_pcb *pcb, struct rfb_state *state) { struct set_encs_req * req = (struct set_encs_req *)state->data; - if (state->writepos < (sizeof(struct set_encs_req) - + 4 * req->num)) - return NEEDMORE; + pktsize = sizeof(struct set_encs_req) + (4 * ntohs(req->num)); - /* XXX ... */ + outputf("RFB: SetEncodings [%d]", ntohs(req->num)); + if (state->writepos < pktsize) return NEEDMORE; + + for (i = 0; i < ntohs(req->num); i++) { + outputf("RFB: Encoding: %d", ntohl(req->encodings[i])); + /* XXX ... */ - state->readpos += (4 * req->num) + sizeof(struct set_encs_req); + } + + state->readpos += pktsize; return OK; case FB_UPDATE_REQUEST: if (state->writepos < sizeof(struct fb_update_req)) return NEEDMORE; + outputf("RFB: UpdateRequest"); state->needs_updated = 1; memcpy(&state->client_interest_area, state->data, @@ -234,6 +263,7 @@ static enum fsm_result recv_fsm(struct tcp_pcb *pcb, struct rfb_state *state) { case KEY_EVENT: if (state->writepos < sizeof(struct key_event_pkt)) return NEEDMORE; + outputf("RFB: Key"); /* XXX stub */ @@ -243,6 +273,7 @@ static enum fsm_result recv_fsm(struct tcp_pcb *pcb, struct rfb_state *state) { case POINTER_EVENT: if (state->writepos < sizeof(struct pointer_event_pkt)) return NEEDMORE; + outputf("RFB: Pointer"); /* XXX stub */ @@ -252,6 +283,7 @@ static enum fsm_result recv_fsm(struct tcp_pcb *pcb, struct rfb_state *state) { case CLIENT_CUT_TEXT: if (state->writepos < sizeof(struct text_event_pkt)) return NEEDMORE; + outputf("RFB: Cut Text"); struct text_event_pkt * pkt = (struct text_event_pkt *)state->data; @@ -302,16 +334,26 @@ static err_t rfb_recv(void *arg, struct tcp_pcb *pcb, outputf("RFB: Processing %d", p->tot_len); pbuf_copy_partial(p, state->data + state->writepos, p->tot_len, 0); + state->writepos += p->tot_len; + tcp_recved(pcb, p->tot_len); pbuf_free(p); while (1) { switch (recv_fsm(pcb, state)) { case NEEDMORE: + outputf("RFB FSM: blocking"); /* Need more data */ return ERR_OK; case OK: + outputf("RFB FSM: ok"); + + /* Might as well send now... */ + if (state->needs_updated && !state->sending) { + start_send(pcb, state); + } + if (state->readpos == state->writepos) { state->readpos = 0; state->writepos = 0; @@ -339,6 +381,12 @@ static err_t rfb_accept(void *arg, struct tcp_pcb *pcb, err_t err) { state = (struct rfb_state *)mem_malloc(sizeof(struct rfb_state)); + state->state = ST_BEGIN; + state->readpos = 0; + state->writepos = 0; + state->needs_updated = 0; + state->sending = 0; + /* XXX: update_server_info() should be called from the 64ms timer, and deal * with screen resizes appropriately. */ update_server_info(); -- 2.43.0