2 8d1b399b 2021-07-22 op * Copyright (c) 2021 Omar Polo <op@omarpolo.com>
4 8d1b399b 2021-07-22 op * Permission to use, copy, modify, and distribute this software for any
5 8d1b399b 2021-07-22 op * purpose with or without fee is hereby granted, provided that the above
6 8d1b399b 2021-07-22 op * copyright notice and this permission notice appear in all copies.
8 8d1b399b 2021-07-22 op * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 8d1b399b 2021-07-22 op * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 8d1b399b 2021-07-22 op * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 8d1b399b 2021-07-22 op * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 8d1b399b 2021-07-22 op * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 8d1b399b 2021-07-22 op * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 8d1b399b 2021-07-22 op * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 8d1b399b 2021-07-22 op #ifndef KAMID_H
18 8d1b399b 2021-07-22 op #define KAMID_H
20 8d1b399b 2021-07-22 op #include "compat.h"
22 8d1b399b 2021-07-22 op #include <limits.h>
23 8d1b399b 2021-07-22 op #include <stdint.h>
24 8d1b399b 2021-07-22 op #include <tls.h>
26 8d1b399b 2021-07-22 op /* TODO: make these customizable */
27 8d1b399b 2021-07-22 op #define KD_CONF_FILE "/etc/kamid.conf"
28 8d1b399b 2021-07-22 op #define KD_USER "_kamid"
29 8d1b399b 2021-07-22 op #define KD_SOCKET "/var/run/kamid.sock"
31 8d1b399b 2021-07-22 op #define IMSG_DATA_SIZE(imsg) ((imsg).hdr.len - IMSG_HEADER_SIZE)
33 36da10d7 2021-07-26 op #define MIN(a, b) ((a) < (b) ? (a) : (b))
35 8d1b399b 2021-07-22 op struct imsgev {
36 8d1b399b 2021-07-22 op struct imsgbuf ibuf;
37 8d1b399b 2021-07-22 op void (*handler)(int, short, void *);
38 8d1b399b 2021-07-22 op struct event ev;
42 8d1b399b 2021-07-22 op enum imsg_type {
44 8d1b399b 2021-07-22 op IMSG_CTL_LOG_VERBOSE,
45 8d1b399b 2021-07-22 op IMSG_CTL_RELOAD,
46 8d1b399b 2021-07-22 op IMSG_CONTROLFD,
48 8d1b399b 2021-07-22 op IMSG_RECONF_CONF,
49 8d1b399b 2021-07-22 op IMSG_RECONF_PKI,
50 8d1b399b 2021-07-22 op IMSG_RECONF_PKI_CERT,
51 8d1b399b 2021-07-22 op IMSG_RECONF_PKI_KEY,
52 8d1b399b 2021-07-22 op IMSG_RECONF_LISTEN,
53 8d1b399b 2021-07-22 op IMSG_RECONF_END,
55 8d1b399b 2021-07-22 op IMSG_AUTH_DIR,
56 8d1b399b 2021-07-22 op IMSG_AUTH_TLS,
57 8d1b399b 2021-07-22 op IMSG_CONN_GONE,
63 8d1b399b 2021-07-22 op struct kd_options_conf {
67 8d1b399b 2021-07-22 op enum table_type {
69 8d1b399b 2021-07-22 op T_HASH = 0x01,
72 8d1b399b 2021-07-22 op struct table {
73 8d1b399b 2021-07-22 op char t_name[LINE_MAX];
74 8d1b399b 2021-07-22 op enum table_type t_type;
75 8d1b399b 2021-07-22 op char t_path[PATH_MAX];
76 8d1b399b 2021-07-22 op void *t_handle;
77 8d1b399b 2021-07-22 op struct table_backend *t_backend;
80 8d1b399b 2021-07-22 op struct table_backend {
81 8d1b399b 2021-07-22 op const char *name;
82 8d1b399b 2021-07-22 op int (*open)(struct table *);
83 8d1b399b 2021-07-22 op int (*add)(struct table *, const char *, const char *);
84 8d1b399b 2021-07-22 op int (*lookup)(struct table *, const char *, char **);
85 8d1b399b 2021-07-22 op void (*close)(struct table *);
88 8d1b399b 2021-07-22 op /* table_static.c */
89 8d1b399b 2021-07-22 op extern struct table_backend table_static;
91 fccfa871 2021-07-23 op #define L_NONE 0x0
92 fccfa871 2021-07-23 op #define L_TLS 0x1
93 8d1b399b 2021-07-22 op struct kd_listen_conf {
94 c25feded 2021-07-26 op STAILQ_ENTRY(kd_listen_conf) entry;
96 fccfa871 2021-07-23 op uint32_t flags;
98 8d1b399b 2021-07-22 op char iface[LINE_MAX];
99 8d1b399b 2021-07-22 op uint16_t port;
101 c35679af 2021-12-18 op /* certificate hash => (virtual) user */
102 8d1b399b 2021-07-22 op struct table *auth_table;
104 c35679af 2021-12-18 op /* virtual user => local user */
105 c35679af 2021-12-18 op struct table *virtual_table;
107 c35679af 2021-12-18 op /* (virtual) user => export directory */
108 c35679af 2021-12-18 op struct table *userdata_table;
110 8d1b399b 2021-07-22 op char pki[LINE_MAX];
111 8d1b399b 2021-07-22 op struct event ev;
112 8d1b399b 2021-07-22 op struct tls *ctx;
115 8d1b399b 2021-07-22 op struct kd_pki_conf {
116 c25feded 2021-07-26 op STAILQ_ENTRY(kd_pki_conf) entry;
117 8d1b399b 2021-07-22 op char name[LINE_MAX];
118 8d1b399b 2021-07-22 op uint8_t *cert;
119 8d1b399b 2021-07-22 op size_t certlen;
120 8d1b399b 2021-07-22 op uint8_t *key;
121 8d1b399b 2021-07-22 op size_t keylen;
122 8d1b399b 2021-07-22 op struct tls_config *tlsconf;
125 8d1b399b 2021-07-22 op struct kd_tables_conf {
126 c25feded 2021-07-26 op STAILQ_ENTRY(kd_tables_conf) entry;
127 8d1b399b 2021-07-22 op struct table *table;
130 8d1b399b 2021-07-22 op struct kd_conf {
131 8d1b399b 2021-07-22 op struct kd_options_conf kd_options;
132 c25feded 2021-07-26 op STAILQ_HEAD(kd_pki_conf_head, kd_pki_conf) pki_head;
133 c25feded 2021-07-26 op STAILQ_HEAD(kd_tables_conf_head, kd_tables_conf) table_head;
134 c25feded 2021-07-26 op STAILQ_HEAD(kd_listen_conf_head, kd_listen_conf) listen_head;
137 0ca6718e 2021-07-22 op struct kd_auth_req {
138 0ca6718e 2021-07-22 op uint32_t listen_id;
139 0ca6718e 2021-07-22 op char hash[128+1];
143 8850afbc 2021-07-25 op * 9p message header.
145 8850afbc 2021-07-25 op * The message itself is len bytes long (counting the whole header
148 8850afbc 2021-07-25 op struct np_msg_header {
149 8850afbc 2021-07-25 op uint32_t len;
150 8850afbc 2021-07-25 op uint8_t type;
151 8850afbc 2021-07-25 op uint16_t tag;
154 423f02f5 2021-12-28 cage struct qid {
155 423f02f5 2021-12-28 cage uint64_t path;
156 423f02f5 2021-12-28 cage uint32_t vers;
157 423f02f5 2021-12-28 cage uint8_t type;
160 8850afbc 2021-07-25 op /* useful constants */
161 51b2b17e 2021-07-28 op #define HEADERSIZE (4 + 1 + 2)
162 0c8f02ba 2021-07-27 op #define VERSION9P "9P2000"
163 4321cc20 2021-07-28 op #define MSIZE9P ((uint32_t)4*1024*1024)
164 8850afbc 2021-07-25 op #define NOTAG ((uint16_t)~0U)
165 8850afbc 2021-07-25 op #define NOFID ((uint32_t)~0U)
166 8850afbc 2021-07-25 op #define NOUID (-1)
167 4f6b2143 2021-07-30 op #define QIDSIZE 13
168 1c08fc54 2021-08-01 op #define MAXWELEM 16
170 5585f1c3 2021-12-16 op #define NPSTATSIZ(namlen, uidnam, gidnam, unam) \
171 225ca68a 2021-12-16 op (6 + QIDSIZE + 20 + 2 + namlen + 2 + uidnam + 2 + gidnam + 2 + unam)
173 95e21698 2021-07-29 op /* bits in Qid.type */
174 95e21698 2021-07-29 op #define QTDIR 0x80 /* type bit for directories */
175 95e21698 2021-07-29 op #define QTAPPEND 0x40 /* type bit for append only files */
176 95e21698 2021-07-29 op #define QTEXCL 0x20 /* type bit for exclusive use files */
177 95e21698 2021-07-29 op #define QTMOUNT 0x10 /* type bit for mounted channel */
178 95e21698 2021-07-29 op #define QTAUTH 0x08 /* type bit for authentication file */
179 95e21698 2021-07-29 op #define QTTMP 0x04 /* type bit for non-backed-up file */
180 95e21698 2021-07-29 op #define QTSYMLINK 0x02 /* type bit for symbolic link */
181 95e21698 2021-07-29 op #define QTFILE 0x00 /* type bits for plain file */
183 021481ca 2021-12-13 op /* Topen mode/flags */
184 021481ca 2021-12-13 op #define KOREAD 0x00
185 021481ca 2021-12-13 op #define KOWRITE 0x01
186 021481ca 2021-12-13 op #define KORDWR 0x02
187 021481ca 2021-12-13 op #define KOEXEC 0x03
188 021481ca 2021-12-13 op #define KOTRUNC 0x10
189 021481ca 2021-12-13 op #define KORCLOSE 0x40
191 8850afbc 2021-07-25 op /* 9p message types */
193 5e76e4a6 2021-12-16 op Treaddir = 40, /* .L */
196 8850afbc 2021-07-25 op Tversion = 100,
200 8850afbc 2021-07-25 op Tattach = 104,
202 8850afbc 2021-07-25 op Terror = 106, /* illegal */
204 8850afbc 2021-07-25 op Tflush = 108,
210 8850afbc 2021-07-25 op Tcreate = 114,
214 8850afbc 2021-07-25 op Twrite = 118,
216 8850afbc 2021-07-25 op Tclunk = 120,
218 8850afbc 2021-07-25 op Tremove = 122,
222 8850afbc 2021-07-25 op Twstat = 126,
227 8850afbc 2021-07-25 op * plan9ports' include/fcall.h also has a
229 8850afbc 2021-07-25 op * Topenfd = 98,
232 8850afbc 2021-07-25 op * which it's not mentioned in the 9p "rfc" over at
233 8850afbc 2021-07-25 op * 9p.cat-v.org. Ignoring that for now.
237 8d1b399b 2021-07-22 op /* kamid.c */
238 8d1b399b 2021-07-22 op extern int verbose;
239 8d1b399b 2021-07-22 op int main_imsg_compose_listener(int, int, uint32_t, const void *, uint16_t);
240 8d1b399b 2021-07-22 op void merge_config(struct kd_conf *, struct kd_conf *);
242 8d1b399b 2021-07-22 op struct kd_conf *config_new_empty(void);
243 8d1b399b 2021-07-22 op void config_clear(struct kd_conf *);
245 8d1b399b 2021-07-22 op /* parse.y */
246 8d1b399b 2021-07-22 op struct kd_conf *parse_config(const char *);
247 8d1b399b 2021-07-22 op int cmdline_symset(char *);
