From 7815647d6582c0a4900be2e1de6c5e61272c496b Mon Sep 17 00:00:00 2001 From: Daniel Stenberg Date: Tue, 25 Apr 2023 08:28:01 +0200 Subject: [PATCH] lib: unify the upload/method handling By making sure we set state.upload based on the set.method value and not independently as set.upload, we reduce confusion and mixup risks, both internally and externally. Closes #11017 CVE: CVE-2023-28322 Upstream-Status: Backport [https://github.com/curl/curl/commit/7815647d6582c0a4900be2e1de] Comments: Hunks refreshed Signed-off-by: Bhabu Bindu --- lib/curl_rtmp.c | 4 ++-- lib/file.c | 4 ++-- lib/ftp.c | 8 ++++---- lib/http.c | 4 ++-- lib/imap.c | 6 +++--- lib/rtsp.c | 4 ++-- lib/setopt.c | 6 ++---- lib/smb.c | 6 +++--- lib/smtp.c | 4 ++-- lib/tftp.c | 8 ++++---- lib/transfer.c | 4 ++-- lib/urldata.h | 2 +- lib/vssh/libssh.c | 6 +++--- lib/vssh/libssh2.c | 6 +++--- lib/vssh/wolfssh.c | 2 +- 15 files changed, 36 insertions(+), 38 deletions(-) diff --git a/lib/curl_rtmp.c b/lib/curl_rtmp.c index 2679a2cdc1afe..406fb42ac0f44 100644 --- a/lib/curl_rtmp.c +++ b/lib/curl_rtmp.c @@ -231,7 +231,7 @@ static CURLcode rtmp_connect(struct Curl_easy *data, bool *done) /* We have to know if it's a write before we send the * connect request packet */ - if(data->set.upload) + if(data->state.upload) r->Link.protocol |= RTMP_FEATURE_WRITE; /* For plain streams, use the buffer toggle trick to keep data flowing */ @@ -263,7 +263,7 @@ static CURLcode rtmp_do(struct Curl_easy *data, bool *done) if(!RTMP_ConnectStream(r, 0)) return CURLE_FAILED_INIT; - if(data->set.upload) { + if(data->state.upload) { Curl_pgrsSetUploadSize(data, data->state.infilesize); Curl_setup_transfer(data, -1, -1, FALSE, FIRSTSOCKET); } diff --git a/lib/file.c b/lib/file.c index 51c5d07ce40ab..c751e8861a99b 100644 --- a/lib/file.c +++ b/lib/file.c @@ -240,7 +240,7 @@ static CURLcode file_connect(struct Curl_easy *data, bool *done) file->freepath = real_path; /* free this when done */ file->fd = fd; - if(!data->set.upload && (fd == -1)) { + if(!data->state.upload && (fd == -1)) { failf(data, "Couldn't open file %s", data->state.up.path); file_done(data, CURLE_FILE_COULDNT_READ_FILE, FALSE); return CURLE_FILE_COULDNT_READ_FILE; @@ -422,7 +422,7 @@ static CURLcode file_do(struct Curl_easy *data, bool *done) Curl_pgrsStartNow(data); - if(data->set.upload) + if(data->state.upload) return file_upload(data); file = data->req.p.file; diff --git a/lib/ftp.c b/lib/ftp.c index f50d7baf622f8..4ff68cc454cbc 100644 --- a/lib/ftp.c +++ b/lib/ftp.c @@ -1348,7 +1348,7 @@ static CURLcode ftp_state_prepare_transfer(struct Curl_easy *data) data->set.str[STRING_CUSTOMREQUEST]? data->set.str[STRING_CUSTOMREQUEST]: (data->state.list_only?"NLST":"LIST")); - else if(data->set.upload) + else if(data->state.upload) result = Curl_pp_sendf(data, &ftpc->pp, "PRET STOR %s", conn->proto.ftpc.file); else @@ -3384,7 +3384,7 @@ static CURLcode ftp_done(struct Curl_easy *data, CURLcode status, /* the response code from the transfer showed an error already so no use checking further */ ; - else if(data->set.upload) { + else if(data->state.upload) { if((-1 != data->state.infilesize) && (data->state.infilesize != data->req.writebytecount) && !data->set.crlf && @@ -3640,7 +3640,7 @@ static CURLcode ftp_do_more(struct Curl_easy *data, int *completep) connected back to us */ } } - else if(data->set.upload) { + else if(data->state.upload) { result = ftp_nb_type(data, conn, data->state.prefer_ascii, FTP_STOR_TYPE); if(result) @@ -4233,7 +4233,7 @@ ftpc->file = NULL; /* instead of point to a zero byte, we make it a NULL pointer */ - if(data->set.upload && !ftpc->file && (ftp->transfer == PPTRANSFER_BODY)) { + if(data->state.upload && !ftpc->file && (ftp->transfer == PPTRANSFER_BODY)) { /* We need a file name when uploading. Return error! */ failf(data, "Uploading to a URL without a file name!"); free(rawPath); diff --git a/lib/http.c b/lib/http.c index 80e43f6f361e8..bffdd3468536d 100644 --- a/lib/http.c +++ b/lib/http.c @@ -2033,7 +2033,7 @@ Curl_HttpReq httpreq = data->state.httpreq; const char *request; if((conn->handler->protocol&(PROTO_FAMILY_HTTP|CURLPROTO_FTP)) && - data->set.upload) + data->state.upload) httpreq = HTTPREQ_PUT; /* Now set the 'request' pointer to the proper request string */ @@ -2423,7 +2423,7 @@ CURLcode Curl_http_body(struct Curl_easy *data, struct connectdata *conn, if((conn->handler->protocol & PROTO_FAMILY_HTTP) && (((httpreq == HTTPREQ_POST_MIME || httpreq == HTTPREQ_POST_FORM) && http->postsize < 0) || - ((data->set.upload || httpreq == HTTPREQ_POST) && + ((data->state.upload || httpreq == HTTPREQ_POST) && data->state.infilesize == -1))) { if(conn->bits.authneg) /* don't enable chunked during auth neg */ diff --git a/lib/imap.c b/lib/imap.c index c2f675d4b2618..1952e66a1efcd 100644 --- a/lib/imap.c +++ b/lib/imap.c @@ -1511,11 +1511,11 @@ static CURLcode imap_done(struct Curl_easy *data, CURLcode status, result = status; /* use the already set error code */ } else if(!data->set.connect_only && !imap->custom && - (imap->uid || imap->mindex || data->set.upload || + (imap->uid || imap->mindex || data->state.upload || data->set.mimepost.kind != MIMEKIND_NONE)) { /* Handle responses after FETCH or APPEND transfer has finished */ - if(!data->set.upload && data->set.mimepost.kind == MIMEKIND_NONE) + if(!data->state.upload && data->set.mimepost.kind == MIMEKIND_NONE) state(data, IMAP_FETCH_FINAL); else { /* End the APPEND command first by sending an empty line */ @@ -1581,7 +1581,7 @@ static CURLcode imap_perform(struct Curl_easy *data, bool *connected, selected = TRUE; /* Start the first command in the DO phase */ - if(data->set.upload || data->set.mimepost.kind != MIMEKIND_NONE) + if(data->state.upload || data->set.mimepost.kind != MIMEKIND_NONE) /* APPEND can be executed directly */ result = imap_perform_append(data); else if(imap->custom && (selected || !imap->mailbox)) diff --git a/lib/rtsp.c b/lib/rtsp.c index ea99d720ec4eb..ccd7264b00e74 100644 --- a/lib/rtsp.c +++ b/lib/rtsp.c @@ -493,7 +493,7 @@ static CURLcode rtsp_do(struct Curl_easy *data, bool *done) rtspreq == RTSPREQ_SET_PARAMETER || rtspreq == RTSPREQ_GET_PARAMETER) { - if(data->set.upload) { + if(data->state.upload) { putsize = data->state.infilesize; data->state.httpreq = HTTPREQ_PUT; @@ -512,7 +512,7 @@ static CURLcode rtsp_do(struct Curl_easy *data, bool *done) result = Curl_dyn_addf(&req_buffer, "Content-Length: %" CURL_FORMAT_CURL_OFF_T"\r\n", - (data->set.upload ? putsize : postsize)); + (data->state.upload ? putsize : postsize)); if(result) return result; } diff --git a/lib/setopt.c b/lib/setopt.c index 38f5711e44191..0c3b9634d1192 100644 --- a/lib/setopt.c +++ b/lib/setopt.c @@ -333,8 +333,8 @@ CURLcode Curl_vsetopt(struct Curl_easy *data, CURLoption option, va_list param) * We want to sent data to the remote host. If this is HTTP, that equals * using the PUT request. */ - data->set.upload = (0 != va_arg(param, long)) ? TRUE : FALSE; - if(data->set.upload) { + arg = va_arg(param, long); + if(arg) { /* If this is HTTP, PUT is what's needed to "upload" */ data->set.method = HTTPREQ_PUT; data->set.opt_no_body = FALSE; /* this is implied */ @@ -625,7 +625,6 @@ } else data->set.method = HTTPREQ_GET; - data->set.upload = FALSE; break; case CURLOPT_HTTPPOST: @@ -888,7 +887,6 @@ CURLcode Curl_vsetopt(struct Curl_easy *data, CURLoption option, va_list param) */ if(va_arg(param, long)) { data->set.method = HTTPREQ_GET; - data->set.upload = FALSE; /* switch off upload */ data->set.opt_no_body = FALSE; /* this is implied */ } break; diff --git a/lib/smb.c b/lib/smb.c index a1e444ee6b97e..d6822213529bc 100644 --- a/lib/smb.c +++ b/lib/smb.c @@ -530,7 +530,7 @@ static CURLcode smb_send_open(struct Curl_easy *data) byte_count = strlen(req->path); msg.name_length = smb_swap16((unsigned short)byte_count); msg.share_access = smb_swap32(SMB_FILE_SHARE_ALL); - if(data->set.upload) { + if(data->state.upload) { msg.access = smb_swap32(SMB_GENERIC_READ | SMB_GENERIC_WRITE); msg.create_disposition = smb_swap32(SMB_FILE_OVERWRITE_IF); } @@ -762,7 +762,7 @@ static CURLcode smb_request_state(struct Curl_easy *data, bool *done) void *msg = NULL; const struct smb_nt_create_response *smb_m; - if(data->set.upload && (data->state.infilesize < 0)) { + if(data->state.upload && (data->state.infilesize < 0)) { failf(data, "SMB upload needs to know the size up front"); return CURLE_SEND_ERROR; } @@ -813,7 +813,7 @@ static CURLcode smb_request_state(struct Curl_easy *data, bool *done) smb_m = (const struct smb_nt_create_response*) msg; req->fid = smb_swap16(smb_m->fid); data->req.offset = 0; - if(data->set.upload) { + if(data->state.upload) { data->req.size = data->state.infilesize; Curl_pgrsSetUploadSize(data, data->req.size); next_state = SMB_UPLOAD; diff --git a/lib/smtp.c b/lib/smtp.c index 7a030308d4689..c182cace742d7 100644 --- a/lib/smtp.c +++ b/lib/smtp.c @@ -1419,7 +1419,7 @@ static CURLcode smtp_done(struct Curl_easy *data, CURLcode status, result = status; /* use the already set error code */ } else if(!data->set.connect_only && data->set.mail_rcpt && - (data->set.upload || data->set.mimepost.kind)) { + (data->state.upload || data->set.mimepost.kind)) { /* Calculate the EOB taking into account any terminating CRLF from the previous line of the email or the CRLF of the DATA command when there is "no mail data". RFC-5321, sect. 4.1.1.4. @@ -1511,7 +1511,7 @@ static CURLcode smtp_perform(struct Curl_easy *data, bool *connected, smtp->eob = 2; /* Start the first command in the DO phase */ - if((data->set.upload || data->set.mimepost.kind) && data->set.mail_rcpt) + if((data->state.upload || data->set.mimepost.kind) && data->set.mail_rcpt) /* MAIL transfer */ result = smtp_perform_mail(data); else diff --git a/lib/tftp.c b/lib/tftp.c index 164d3c723c5b9..8ed1b887b4d21 100644 --- a/lib/tftp.c +++ b/lib/tftp.c @@ -370,7 +370,7 @@ static CURLcode tftp_parse_option_ack(struct tftp_state_data *state, /* tsize should be ignored on upload: Who cares about the size of the remote file? */ - if(!data->set.upload) { + if(!data->state.upload) { if(!tsize) { failf(data, "invalid tsize -:%s:- value in OACK packet", value); return CURLE_TFTP_ILLEGAL; @@ -451,7 +451,7 @@ static CURLcode tftp_send_first(struct tftp_state_data *state, return result; } - if(data->set.upload) { + if(data->state.upload) { /* If we are uploading, send an WRQ */ setpacketevent(&state->spacket, TFTP_EVENT_WRQ); state->data->req.upload_fromhere = @@ -486,7 +486,7 @@ static CURLcode tftp_send_first(struct tftp_state_data *state, if(!data->set.tftp_no_options) { char buf[64]; /* add tsize option */ - if(data->set.upload && (data->state.infilesize != -1)) + if(data->state.upload && (data->state.infilesize != -1)) msnprintf(buf, sizeof(buf), "%" CURL_FORMAT_CURL_OFF_T, data->state.infilesize); else @@ -540,7 +540,7 @@ static CURLcode tftp_send_first(struct tftp_state_data *state, break; case TFTP_EVENT_OACK: - if(data->set.upload) { + if(data->state.upload) { result = tftp_connect_for_tx(state, event); } else { diff --git a/lib/transfer.c b/lib/transfer.c index e9ab8fbf09510..cb69f3365855a 100644 --- a/lib/transfer.c +++ b/lib/transfer.c @@ -1293,6 +1293,7 @@ void Curl_init_CONNECT(struct Curl_easy *data) { data->state.fread_func = data->set.fread_func_set; data->state.in = data->set.in_set; + data->state.upload = (data->state.httpreq == HTTPREQ_PUT); } /* @@ -1767,7 +1767,6 @@ data->state.httpreq != HTTPREQ_POST_MIME) || !(data->set.keep_post & CURL_REDIR_POST_303))) { data->state.httpreq = HTTPREQ_GET; - data->set.upload = false; infof(data, "Switch to %s", data->set.opt_no_body?"HEAD":"GET"); } @@ -1770,7 +1770,7 @@ CURLcode Curl_retry_request(struct Curl_easy *data, char **url) /* if we're talking upload, we can't do the checks below, unless the protocol is HTTP as when uploading over HTTP we will still get a response */ - if(data->set.upload && + if(data->state.upload && !(conn->handler->protocol&(PROTO_FAMILY_HTTP|CURLPROTO_RTSP))) return CURLE_OK; diff --git a/lib/urldata.h b/lib/urldata.h index cca992a0295aa..a8580bdb66fe8 100644 --- a/lib/urldata.h +++ b/lib/urldata.h @@ -1487,6 +1487,7 @@ BIT(url_alloc); /* URL string is malloc()'ed */ BIT(referer_alloc); /* referer string is malloc()ed */ BIT(wildcard_resolve); /* Set to true if any resolve change is a wildcard */ + BIT(upload); /* upload request */ }; /* @@ -1838,7 +1839,6 @@ struct UserDefined { BIT(http_auto_referer); /* set "correct" referer when following location: */ BIT(opt_no_body); /* as set with CURLOPT_NOBODY */ - BIT(upload); /* upload request */ BIT(verbose); /* output verbosity */ BIT(krb); /* Kerberos connection requested */ BIT(reuse_forbid); /* forbidden to be reused, close after use */ diff --git a/lib/vssh/libssh.c b/lib/vssh/libssh.c index b31f741ba9492..d60edaa303642 100644 --- a/lib/vssh/libssh.c +++ b/lib/vssh/libssh.c @@ -1209,7 +1209,7 @@ static CURLcode myssh_statemach_act(struct Curl_easy *data, bool *block) } case SSH_SFTP_TRANS_INIT: - if(data->set.upload) + if(data->state.upload) state(data, SSH_SFTP_UPLOAD_INIT); else { if(protop->path[strlen(protop->path)-1] == '/') @@ -1802,7 +1802,7 @@ static CURLcode myssh_statemach_act(struct Curl_easy *data, bool *block) /* Functions from the SCP subsystem cannot handle/return SSH_AGAIN */ ssh_set_blocking(sshc->ssh_session, 1); - if(data->set.upload) { + if(data->state.upload) { if(data->state.infilesize < 0) { failf(data, "SCP requires a known file size for upload"); sshc->actualcode = CURLE_UPLOAD_FAILED; @@ -1907,7 +1907,7 @@ static CURLcode myssh_statemach_act(struct Curl_easy *data, bool *block) break; } case SSH_SCP_DONE: - if(data->set.upload) + if(data->state.upload) state(data, SSH_SCP_SEND_EOF); else state(data, SSH_SCP_CHANNEL_FREE); diff --git a/lib/vssh/libssh2.c b/lib/vssh/libssh2.c index f1154dc47a74e..f2e5352d1fd3a 100644 --- a/lib/vssh/libssh2.c +++ b/lib/vssh/libssh2.c @@ -2019,7 +2019,7 @@ static CURLcode ssh_statemach_act(struct Curl_easy *data, bool *block) } case SSH_SFTP_TRANS_INIT: - if(data->set.upload) + if(data->state.upload) state(data, SSH_SFTP_UPLOAD_INIT); else { if(sshp->path[strlen(sshp->path)-1] == '/') @@ -2691,7 +2691,7 @@ static CURLcode ssh_statemach_act(struct Curl_easy *data, bool *block) break; } - if(data->set.upload) { + if(data->state.upload) { if(data->state.infilesize < 0) { failf(data, "SCP requires a known file size for upload"); sshc->actualcode = CURLE_UPLOAD_FAILED; @@ -2831,7 +2831,7 @@ static CURLcode ssh_statemach_act(struct Curl_easy *data, bool *block) break; case SSH_SCP_DONE: - if(data->set.upload) + if(data->state.upload) state(data, SSH_SCP_SEND_EOF); else state(data, SSH_SCP_CHANNEL_FREE); diff --git a/lib/vssh/wolfssh.c b/lib/vssh/wolfssh.c index 17d59ecd23bc8..2ca91b7363b1d 100644 --- a/lib/vssh/wolfssh.c +++ b/lib/vssh/wolfssh.c @@ -557,7 +557,7 @@ static CURLcode wssh_statemach_act(struct Curl_easy *data, bool *block) } break; case SSH_SFTP_TRANS_INIT: - if(data->set.upload) + if(data->state.upload) state(data, SSH_SFTP_UPLOAD_INIT); else { if(sftp_scp->path[strlen(sftp_scp->path)-1] == '/')