]>
Commit | Line | Data |
---|---|---|
7ac48069 | 1 | /* $Id$ |
2 | * | |
3 | * Copyright (C) 1988-1998 by the Massachusetts Institute of Technology. | |
4 | * For copying and distribution information, please see the file | |
5 | * <mit-copyright.h>. | |
de56407f | 6 | */ |
de56407f | 7 | |
546bc43b | 8 | #include <mit-copyright.h> |
2ad0a777 | 9 | #include <moira.h> |
7ac48069 | 10 | #include "update_server.h" |
11 | ||
7100d074 | 12 | #include <sys/stat.h> |
7ac48069 | 13 | |
14 | #include <errno.h> | |
15 | #include <fcntl.h> | |
16 | #include <stdio.h> | |
17 | #include <string.h> | |
18 | #include <unistd.h> | |
19 | ||
d599d457 | 20 | #include <des.h> |
7100d074 | 21 | #include <update.h> |
7ac48069 | 22 | |
23 | RCSID("$Header$"); | |
de56407f | 24 | |
85330553 | 25 | extern des_cblock session; |
de56407f | 26 | |
27 | /* | |
28 | * syntax: | |
29 | * (already sent) pathname file_size checksum | |
30 | * <<< (int)code can we send it? | |
31 | * >>> data | |
32 | * <<< 0 | |
33 | * >>> data | |
34 | * <<< 0 | |
35 | * .... | |
36 | * >>> data (last block) | |
37 | * <<< 0 (on final write, close, sync, checksum) | |
38 | * | |
39 | * returns: | |
40 | * 0 on success | |
41 | * 1 on error (file not found, etc) | |
42 | */ | |
43 | ||
85330553 | 44 | int send_file(int conn, char *pathname, char *target_path, int encrypt) |
de56407f | 45 | { |
5eaef520 | 46 | int n, fd, code, n_to_send, i; |
85330553 | 47 | char data[UPDATE_BUFSIZ], enc[UPDATE_BUFSIZ]; |
48 | long response; | |
5eaef520 | 49 | struct stat statb; |
50 | des_key_schedule sched; | |
51 | des_cblock ivec; | |
de56407f | 52 | |
5eaef520 | 53 | /* send file over */ |
54 | fd = open(pathname, O_RDONLY, 0); | |
55 | if (fd < 0) | |
56 | { | |
57 | com_err(whoami, errno, "unable to open %s for read", pathname); | |
58 | return MR_OCONFIG; | |
7100d074 | 59 | } |
5eaef520 | 60 | if (fstat(fd, &statb)) |
61 | { | |
62 | com_err(whoami, errno, "unable to stat %s", pathname); | |
63 | close(fd); | |
64 | return MR_OCONFIG; | |
7100d074 | 65 | } |
5eaef520 | 66 | n_to_send = statb.st_size; |
67 | ||
85330553 | 68 | sprintf(data, "XFER_00%c %d %d %s", (encrypt ? '3' : '2'), n_to_send, |
5eaef520 | 69 | checksum_file(pathname), target_path); |
85330553 | 70 | code = send_string(conn, data, strlen(data) + 1); |
5eaef520 | 71 | if (code) |
72 | { | |
85330553 | 73 | com_err(whoami, code, "sending XFER request"); |
5eaef520 | 74 | close(fd); |
85330553 | 75 | return code; |
de56407f | 76 | } |
85330553 | 77 | code = recv_int(conn, &response); |
5eaef520 | 78 | if (code) |
79 | { | |
85330553 | 80 | com_err(whoami, code, "getting reply from XFER request"); |
5eaef520 | 81 | close(fd); |
85330553 | 82 | return code; |
7100d074 | 83 | } |
85330553 | 84 | if (response) |
5eaef520 | 85 | { |
85330553 | 86 | com_err(whoami, response, "transfer request (XFER) rejected"); |
5eaef520 | 87 | close(fd); |
85330553 | 88 | return response; |
7100d074 | 89 | } |
5eaef520 | 90 | |
85330553 | 91 | code = recv_int(conn, &response); |
5eaef520 | 92 | if (code) |
93 | { | |
85330553 | 94 | com_err(whoami, code, ": lost connection"); |
5eaef520 | 95 | close(fd); |
85330553 | 96 | return code; |
de56407f | 97 | } |
85330553 | 98 | if (response) |
5eaef520 | 99 | { |
85330553 | 100 | com_err(whoami, response, " from remote server: can't update %s", |
101 | pathname); | |
5eaef520 | 102 | close(fd); |
85330553 | 103 | return response; |
de56407f | 104 | } |
77ac78dc | 105 | |
5eaef520 | 106 | if (encrypt) |
107 | { | |
108 | des_key_sched(session, sched); | |
109 | memmove(ivec, session, sizeof(ivec)); | |
d599d457 | 110 | } |
111 | ||
5eaef520 | 112 | while (n_to_send > 0) |
113 | { | |
85330553 | 114 | n = read(fd, data, sizeof(data)); |
5eaef520 | 115 | if (n < 0) |
116 | { | |
85330553 | 117 | com_err(whoami, errno, "reading %s for transmission", pathname); |
5eaef520 | 118 | close(fd); |
119 | return MR_ABORTED; | |
de56407f | 120 | } |
5eaef520 | 121 | if (encrypt) |
122 | { | |
85330553 | 123 | memset(data + n, 0, sizeof(data) -n); |
124 | des_pcbc_encrypt(data, enc, n, sched, ivec, 0); | |
5eaef520 | 125 | /* save vector to continue chaining */ |
126 | for (i = 0; i < 8; i++) | |
85330553 | 127 | ivec[i] = data[n - 8 + i] ^ enc[n - 8 + i]; |
5eaef520 | 128 | /* round up to multiple of 8 */ |
85330553 | 129 | n = (n + 7) & ~7; |
130 | code = send_string(conn, enc, n); | |
d599d457 | 131 | } |
85330553 | 132 | else |
133 | code = send_string(conn, data, n); | |
5eaef520 | 134 | if (code) |
135 | { | |
85330553 | 136 | com_err(whoami, code, "transmitting file %s", pathname); |
5eaef520 | 137 | close(fd); |
85330553 | 138 | return code; |
de56407f | 139 | } |
85330553 | 140 | |
5eaef520 | 141 | n_to_send -= n; |
85330553 | 142 | code = recv_int(conn, &response); |
5eaef520 | 143 | if (code) |
144 | { | |
85330553 | 145 | com_err(whoami, code, "awaiting ACK during transmission of %s", |
5eaef520 | 146 | pathname); |
147 | close(fd); | |
85330553 | 148 | return code; |
de56407f | 149 | } |
85330553 | 150 | if (response) |
5eaef520 | 151 | { |
85330553 | 152 | com_err(whoami, response, |
153 | "from remote server during transmission of %s", | |
5eaef520 | 154 | pathname); |
155 | close(fd); | |
85330553 | 156 | return response; |
de56407f | 157 | } |
158 | } | |
85330553 | 159 | |
5eaef520 | 160 | if (statb.st_size == 0) |
161 | { | |
85330553 | 162 | code = recv_int(conn, &response); |
5eaef520 | 163 | if (code) |
164 | { | |
85330553 | 165 | com_err(whoami, code, "awaiting ACK after transmission of %s", |
5eaef520 | 166 | pathname); |
167 | close(fd); | |
85330553 | 168 | return code; |
77ac78dc | 169 | } |
85330553 | 170 | if (response) |
5eaef520 | 171 | { |
85330553 | 172 | com_err(whoami, response, |
173 | "from remote server after transmission of %s", | |
5eaef520 | 174 | pathname); |
175 | close(fd); | |
85330553 | 176 | return response; |
77ac78dc | 177 | } |
178 | } | |
5eaef520 | 179 | close(fd); |
180 | return MR_SUCCESS; | |
de56407f | 181 | } |