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Date:: Fri Oct 7 07:57:31 2022 UTC
Message:: work around missing LOGIN_NAME_MAX Both Linux and OpenBSD have LOGIN_NAME_MAX available when including limits.h, FreeBSD, Darwin and possibly others don't. FreeBSD (and maybe Darwin) have MAXLOGNAME, so try to use that if available. Otherwise use _POSIX_LOGIN_NAME_MAX, but only has a fallback since it has a lower value (9 at the time of writing). If everything fails, use 32 which is what OpenBSD use by default; OpenSMTPd also defaults to it. See also github issue #1
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  1 fb1a36c0 2022-01-09 op /*
  2 fb1a36c0 2022-01-09 op  * Copyright (c) 2021 Omar Polo <op@omarpolo.com>
  3 fb1a36c0 2022-01-09 op  *
  4 fb1a36c0 2022-01-09 op  * Permission to use, copy, modify, and distribute this software for any
  5 fb1a36c0 2022-01-09 op  * purpose with or without fee is hereby granted, provided that the above
  6 fb1a36c0 2022-01-09 op  * copyright notice and this permission notice appear in all copies.
  7 fb1a36c0 2022-01-09 op  *
  8 fb1a36c0 2022-01-09 op  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  9 fb1a36c0 2022-01-09 op  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 10 fb1a36c0 2022-01-09 op  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 11 fb1a36c0 2022-01-09 op  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 12 fb1a36c0 2022-01-09 op  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 13 fb1a36c0 2022-01-09 op  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 14 fb1a36c0 2022-01-09 op  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 15 fb1a36c0 2022-01-09 op  */
 16 fb1a36c0 2022-01-09 op 
 17 fb1a36c0 2022-01-09 op #ifndef KAMID_H
 18 fb1a36c0 2022-01-09 op #define KAMID_H
 19 fb1a36c0 2022-01-09 op 
 20 fb1a36c0 2022-01-09 op #include <limits.h>
 21 fb1a36c0 2022-01-09 op #include <stdint.h>
 22 fb1a36c0 2022-01-09 op #include <tls.h>
 23 fb1a36c0 2022-01-09 op 
 24 20f7a94e 2022-10-07 op /* Linux and OpenBSD have LOGIN_NAME_MAX, FreeBSD MAXLOGNAME. */
 25 20f7a94e 2022-10-07 op #ifndef LOGIN_NAME_MAX
 26 20f7a94e 2022-10-07 op # if defined(MAXLOGNAME)
 27 20f7a94e 2022-10-07 op #  define LOGIN_NAME_MAX MAXLOGNAME
 28 20f7a94e 2022-10-07 op # elif defined(_POSIX_LOGIN_NAME_MAX)
 29 20f7a94e 2022-10-07 op #  define LOGIN_NAME_MAX _POSIX_LOGIN_NAME_MAX
 30 20f7a94e 2022-10-07 op # else
 31 20f7a94e 2022-10-07 op #  define LOGIN_NAME_MAX 32
 32 20f7a94e 2022-10-07 op # endif
 33 20f7a94e 2022-10-07 op #endif
 34 20f7a94e 2022-10-07 op 
 35 fb1a36c0 2022-01-09 op /* TODO: make these customizable */
 36 fb1a36c0 2022-01-09 op #define KD_CONF_FILE		"/etc/kamid.conf"
 37 fb1a36c0 2022-01-09 op #define KD_USER			"_kamid"
 38 fb1a36c0 2022-01-09 op #define KD_SOCKET		"/var/run/kamid.sock"
 39 fb1a36c0 2022-01-09 op 
 40 fb1a36c0 2022-01-09 op #define IMSG_DATA_SIZE(imsg)	((imsg).hdr.len - IMSG_HEADER_SIZE)
 41 fb1a36c0 2022-01-09 op 
 42 fb1a36c0 2022-01-09 op enum imsg_type {
 43 fb1a36c0 2022-01-09 op 	IMSG_NONE,
 44 fb1a36c0 2022-01-09 op 	IMSG_CTL_LOG_VERBOSE,
 45 fb1a36c0 2022-01-09 op 	IMSG_CTL_RELOAD,
 46 5c69b561 2022-01-29 op 	IMSG_CTL_DEBUG,
 47 5c69b561 2022-01-29 op 	IMSG_CTL_DEBUG_BACK,	/* kd_debug_info */
 48 5c69b561 2022-01-29 op 	IMSG_CTL_DEBUG_END,
 49 fb1a36c0 2022-01-09 op 	IMSG_STARTUP,
 50 fb1a36c0 2022-01-09 op 	IMSG_RECONF_CONF,
 51 fb1a36c0 2022-01-09 op 	IMSG_RECONF_PKI,
 52 fb1a36c0 2022-01-09 op 	IMSG_RECONF_PKI_CERT,
 53 fb1a36c0 2022-01-09 op 	IMSG_RECONF_PKI_KEY,
 54 fb1a36c0 2022-01-09 op 	IMSG_RECONF_LISTEN,
 55 fb1a36c0 2022-01-09 op 	IMSG_RECONF_END,
 56 1e84c7b7 2022-01-10 op 	IMSG_AUTH,		/* kd_auth_proc */
 57 1e84c7b7 2022-01-10 op 	IMSG_AUTH_TLS,		/* kd_auth_req */
 58 fb1a36c0 2022-01-09 op 	IMSG_CONN_GONE,
 59 fb1a36c0 2022-01-09 op 	IMSG_BUF,
 60 8b0a5062 2022-05-22 op 	IMSG_BUF_CONT,
 61 fb1a36c0 2022-01-09 op 	IMSG_MSIZE,
 62 fb1a36c0 2022-01-09 op 	IMSG_CLOSE,
 63 fb1a36c0 2022-01-09 op };
 64 fb1a36c0 2022-01-09 op 
 65 fb1a36c0 2022-01-09 op struct kd_options_conf {
 66 fb1a36c0 2022-01-09 op 	/* ... */
 67 fb1a36c0 2022-01-09 op };
 68 fb1a36c0 2022-01-09 op 
 69 35c6cd0e 2022-01-10 op struct table;
 70 fb1a36c0 2022-01-09 op 
 71 fb1a36c0 2022-01-09 op #define L_NONE	0x0
 72 fb1a36c0 2022-01-09 op #define L_TLS	0x1
 73 fb1a36c0 2022-01-09 op struct kd_listen_conf {
 74 fb1a36c0 2022-01-09 op 	STAILQ_ENTRY(kd_listen_conf)	 entry;
 75 fb1a36c0 2022-01-09 op 	uint32_t			 id;
 76 fb1a36c0 2022-01-09 op 	uint32_t			 flags;
 77 fb1a36c0 2022-01-09 op 	int				 fd;
 78 fb1a36c0 2022-01-09 op 	char				 iface[LINE_MAX];
 79 fb1a36c0 2022-01-09 op 	uint16_t			 port;
 80 fb1a36c0 2022-01-09 op 
 81 fb1a36c0 2022-01-09 op 	/* certificate hash => (virtual) user */
 82 fb1a36c0 2022-01-09 op 	struct table			*auth_table;
 83 fb1a36c0 2022-01-09 op 
 84 fb1a36c0 2022-01-09 op 	/* virtual user => local user */
 85 fb1a36c0 2022-01-09 op 	struct table			*virtual_table;
 86 fb1a36c0 2022-01-09 op 
 87 fb1a36c0 2022-01-09 op 	/* (virtual) user => export directory */
 88 fb1a36c0 2022-01-09 op 	struct table			*userdata_table;
 89 fb1a36c0 2022-01-09 op 
 90 fb1a36c0 2022-01-09 op 	char				 pki[LINE_MAX];
 91 fb1a36c0 2022-01-09 op 	struct event			 ev;
 92 fb1a36c0 2022-01-09 op 	struct tls			*ctx;
 93 fb1a36c0 2022-01-09 op };
 94 fb1a36c0 2022-01-09 op 
 95 fb1a36c0 2022-01-09 op struct kd_pki_conf {
 96 fb1a36c0 2022-01-09 op 	STAILQ_ENTRY(kd_pki_conf)	 entry;
 97 fb1a36c0 2022-01-09 op 	char				 name[LINE_MAX];
 98 fb1a36c0 2022-01-09 op 	uint8_t				*cert;
 99 fb1a36c0 2022-01-09 op 	size_t				 certlen;
100 fb1a36c0 2022-01-09 op 	uint8_t				*key;
101 fb1a36c0 2022-01-09 op 	size_t				 keylen;
102 fb1a36c0 2022-01-09 op 	struct tls_config		*tlsconf;
103 fb1a36c0 2022-01-09 op };
104 fb1a36c0 2022-01-09 op 
105 fb1a36c0 2022-01-09 op struct kd_tables_conf {
106 fb1a36c0 2022-01-09 op 	STAILQ_ENTRY(kd_tables_conf)	 entry;
107 fb1a36c0 2022-01-09 op 	struct table			*table;
108 fb1a36c0 2022-01-09 op };
109 fb1a36c0 2022-01-09 op 
110 fb1a36c0 2022-01-09 op struct kd_conf {
111 fb1a36c0 2022-01-09 op 	struct kd_options_conf					 kd_options;
112 fb1a36c0 2022-01-09 op 	STAILQ_HEAD(kd_pki_conf_head, kd_pki_conf)		 pki_head;
113 fb1a36c0 2022-01-09 op 	STAILQ_HEAD(kd_tables_conf_head, kd_tables_conf)	 table_head;
114 fb1a36c0 2022-01-09 op 	STAILQ_HEAD(kd_listen_conf_head, kd_listen_conf)	 listen_head;
115 fb1a36c0 2022-01-09 op };
116 fb1a36c0 2022-01-09 op 
117 fb1a36c0 2022-01-09 op struct kd_auth_req {
118 fb1a36c0 2022-01-09 op 	uint32_t	listen_id;
119 fb1a36c0 2022-01-09 op 	char		hash[128+1];
120 fb1a36c0 2022-01-09 op };
121 fb1a36c0 2022-01-09 op 
122 1e84c7b7 2022-01-10 op struct kd_auth_proc {
123 1e84c7b7 2022-01-10 op 	char		uname[LOGIN_NAME_MAX];
124 1e84c7b7 2022-01-10 op 	char		dir[PATH_MAX];
125 1e84c7b7 2022-01-10 op };
126 1e84c7b7 2022-01-10 op 
127 5c69b561 2022-01-29 op struct kd_debug_info {
128 5c69b561 2022-01-29 op 	uint32_t	client_id;
129 5c69b561 2022-01-29 op 	uint32_t	fid;
130 5c69b561 2022-01-29 op 	char		path[NAME_MAX];
131 5c69b561 2022-01-29 op };
132 5c69b561 2022-01-29 op 
133 fb1a36c0 2022-01-09 op /* kamid.c */
134 fb1a36c0 2022-01-09 op extern int verbose;
135 a80d2bca 2022-01-23 op int	main_reload(void);
136 fb1a36c0 2022-01-09 op int	main_imsg_compose_listener(int, int, uint32_t, const void *, uint16_t);
137 fb1a36c0 2022-01-09 op void	merge_config(struct kd_conf *, struct kd_conf *);
138 fb1a36c0 2022-01-09 op 
139 fb1a36c0 2022-01-09 op struct kd_conf	*config_new_empty(void);
140 fb1a36c0 2022-01-09 op void		 config_clear(struct kd_conf *);
141 fb1a36c0 2022-01-09 op 
142 fb1a36c0 2022-01-09 op /* parse.y */
143 fb1a36c0 2022-01-09 op struct kd_conf	*parse_config(const char *);
144 fb1a36c0 2022-01-09 op int		 cmdline_symset(char *);
145 d5207cf4 2022-01-28 op void		 clear_config(struct kd_conf *);
146 fb1a36c0 2022-01-09 op 
147 fb1a36c0 2022-01-09 op #endif