From 65f90758d4df5581bc94746d47a1548ed8ff738b Mon Sep 17 00:00:00 2001 From: Simo Sorce Date: Mon, 6 Apr 2009 15:54:00 -0400 Subject: Unify name parsing and reposnder headers Use common sss_parse_name function in all responders Simplify responder headers by combining common,cmd,dp in one header and add name parse structure as part of the common responder context. --- server/responder/common/responder.h | 119 +++++++++++++ server/responder/common/responder_cmd.c | 2 +- server/responder/common/responder_cmd.h | 87 ---------- server/responder/common/responder_common.c | 136 ++++++++++++--- server/responder/common/responder_common.h | 26 --- server/responder/common/responder_dp.c | 2 +- server/responder/common/responder_dp.h | 3 - server/responder/nss/nsssrv.c | 28 +--- server/responder/nss/nsssrv.h | 10 +- server/responder/nss/nsssrv_cmd.c | 257 ++++++++++++++++------------- server/responder/pam/pamsrv.c | 2 - server/responder/pam/pamsrv.h | 2 +- server/responder/pam/pamsrv_cmd.c | 65 ++++---- 13 files changed, 412 insertions(+), 327 deletions(-) create mode 100644 server/responder/common/responder.h delete mode 100644 server/responder/common/responder_cmd.h delete mode 100644 server/responder/common/responder_common.h delete mode 100644 server/responder/common/responder_dp.h (limited to 'server') diff --git a/server/responder/common/responder.h b/server/responder/common/responder.h new file mode 100644 index 00000000..4b6bfeee --- /dev/null +++ b/server/responder/common/responder.h @@ -0,0 +1,119 @@ +/* + SSSD + + SSS Client Responder, header file + + Copyright (C) Simo Sorce 2008 + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . +*/ + +#ifndef __SSS_RESPONDER_H__ +#define __SSS_RESPONDER_H__ + +#include +#include +#include +#include "config.h" +#include "talloc.h" +#include "tevent.h" +#include "ldb.h" +#include "sbus/sssd_dbus.h" +#include "../sss_client/sss_cli.h" +#include "util/btreemap.h" + +/* needed until nsssrv.h is updated */ +struct cli_request { + + /* original request from the wire */ + struct sss_packet *in; + + /* reply data */ + struct sss_packet *out; +}; + +struct sss_names_ctx { + char *re_pattern; + char *fq_fmt; + + pcre *re; +}; + +struct resp_ctx { + struct tevent_context *ev; + struct tevent_fd *lfde; + int lfd; + struct tevent_fd *priv_lfde; + int priv_lfd; + struct sysdb_ctx *sysdb; + struct confdb_ctx *cdb; + const char *sock_name; + const char *priv_sock_name; + struct service_sbus_ctx *ss_ctx; + struct service_sbus_ctx *dp_ctx; + + struct btreemap *domain_map; + char *default_domain; + + struct sbus_method *sss_sbus_methods; + struct sss_cmd_table *sss_cmds; + const char *sss_pipe_name; + const char *confdb_service_path; + struct sbus_method *dp_methods; + + struct sss_names_ctx *names; + + void *pvt_ctx; +}; + +struct cli_ctx { + struct tevent_context *ev; + struct resp_ctx *rctx; + int cfd; + struct tevent_fd *cfde; + struct sockaddr_un addr; + struct cli_request *creq; + int priv; +}; + +struct sss_cmd_table { + enum sss_cli_command cmd; + int (*fn)(struct cli_ctx *cctx); +}; + +/* responder_common.c */ +int sss_process_init(TALLOC_CTX *mem_ctx, + struct tevent_context *ev, + struct confdb_ctx *cdb, + struct sbus_method sss_sbus_methods[], + struct sss_cmd_table sss_cmds[], + const char *sss_pipe_name, + const char *sss_priv_pipe_name, + const char *confdb_service_path, + struct sbus_method dp_methods[], + struct resp_ctx **responder_ctx); + +int sss_parse_name(TALLOC_CTX *memctx, + struct sss_names_ctx *snctx, + const char *orig, char **domain, char **name); + +/* responder_cmd.c */ +int sss_cmd_execute(struct cli_ctx *cctx, struct sss_cmd_table *sss_cmds); +void sss_cmd_done(struct cli_ctx *cctx, void *freectx); +int sss_cmd_get_version(struct cli_ctx *cctx); + +/* responder_dp.c */ +int sss_dp_init(struct resp_ctx *rctx, struct sbus_method dp_methods[]); + +#endif /* __SSS_RESPONDER_H__ */ diff --git a/server/responder/common/responder_cmd.c b/server/responder/common/responder_cmd.c index a434b3e1..33caa032 100644 --- a/server/responder/common/responder_cmd.c +++ b/server/responder/common/responder_cmd.c @@ -20,7 +20,7 @@ */ #include #include "util/util.h" -#include "responder/common/responder_cmd.h" +#include "responder/common/responder.h" #include "responder/common/responder_packet.h" diff --git a/server/responder/common/responder_cmd.h b/server/responder/common/responder_cmd.h deleted file mode 100644 index eb3bd082..00000000 --- a/server/responder/common/responder_cmd.h +++ /dev/null @@ -1,87 +0,0 @@ -/* - SSSD - - SSS Client Responder, header file - - Copyright (C) Simo Sorce 2008 - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 3 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program. If not, see . -*/ - -#ifndef __SSSSRV_CMD_H__ -#define __SSSSRV_CMD_H__ - -#include -#include -#include "talloc.h" -#include "tevent.h" -#include "ldb.h" -#include "../sss_client/sss_cli.h" -#include "util/btreemap.h" - -/* needed until nsssrv.h is updated */ -struct cli_request { - - /* original request from the wire */ - struct sss_packet *in; - - /* reply data */ - struct sss_packet *out; -}; - -struct resp_ctx { - struct tevent_context *ev; - struct tevent_fd *lfde; - int lfd; - struct tevent_fd *priv_lfde; - int priv_lfd; - struct sysdb_ctx *sysdb; - struct confdb_ctx *cdb; - const char *sock_name; - const char *priv_sock_name; - struct service_sbus_ctx *ss_ctx; - struct service_sbus_ctx *dp_ctx; - - struct btreemap *domain_map; - char *default_domain; - - struct sbus_method *sss_sbus_methods; - struct sss_cmd_table *sss_cmds; - const char *sss_pipe_name; - const char *confdb_service_path; - struct sbus_method *dp_methods; - - void *pvt_ctx; -}; - -struct cli_ctx { - struct tevent_context *ev; - struct resp_ctx *rctx; - int cfd; - struct tevent_fd *cfde; - struct sockaddr_un addr; - struct cli_request *creq; - int priv; -}; - -struct sss_cmd_table { - enum sss_cli_command cmd; - int (*fn)(struct cli_ctx *cctx); -}; - -int sss_cmd_execute(struct cli_ctx *cctx, struct sss_cmd_table *sss_cmds); -void sss_cmd_done(struct cli_ctx *cctx, void *freectx); -int sss_cmd_get_version(struct cli_ctx *cctx); - -#endif /* __SSSSRV_CMD_H__ */ diff --git a/server/responder/common/responder_common.c b/server/responder/common/responder_common.c index fa024d53..855c78a7 100644 --- a/server/responder/common/responder_common.c +++ b/server/responder/common/responder_common.c @@ -36,15 +36,15 @@ #include "dbus/dbus.h" #include "sbus/sssd_dbus.h" #include "util/btreemap.h" -#include "responder/common/responder_common.h" +#include "responder/common/responder.h" #include "responder/common/responder_packet.h" -#include "responder/common/responder_cmd.h" -#include "responder/common/responder_dp.h" #include "providers/data_provider.h" #include "monitor/monitor_sbus.h" #include "monitor/monitor_interfaces.h" #include "sbus/sbus_client.h" +#define NAMES_CONFIG "config/names" + static void set_nonblocking(int fd) { unsigned v; @@ -487,6 +487,62 @@ done: return retval; } +int sss_names_init(struct resp_ctx *rctx) +{ + struct sss_names_ctx *ctx; + const char *errstr; + int errval; + int errpos; + int ret; + + ctx = talloc_zero(rctx, struct sss_names_ctx); + if (!ctx) return ENOMEM; + + ret = confdb_get_string(rctx->cdb, ctx, NAMES_CONFIG, + "re-expression", NULL, &ctx->re_pattern); + if (ret != EOK) goto done; + + if (!ctx->re_pattern) { + ctx->re_pattern = talloc_strdup(ctx, + "(?[^@]+)@?(?[^@]*$)"); + if (!ctx->re_pattern) { + ret = ENOMEM; + goto done; + } + } + + ret = confdb_get_string(rctx->cdb, ctx, NAMES_CONFIG, + "full-name-format", NULL, &ctx->fq_fmt); + if (ret != EOK) goto done; + + if (!ctx->fq_fmt) { + ctx->fq_fmt = talloc_strdup(ctx, "%1$s@%2$s"); + if (!ctx->fq_fmt) { + ret = ENOMEM; + goto done; + } + } + + ctx->re = pcre_compile2(ctx->re_pattern, + PCRE_DUPNAMES | PCRE_EXTENDED, + &errval, &errstr, &errpos, NULL); + if (!ctx->re) { + DEBUG(1, ("Invalid Regular Expression pattern at position %d." + " (Error: %d [%s])\n", errpos, errval, errstr)); + ret = EFAULT; + goto done; + } + + rctx->names = ctx; + ret = EOK; + +done: + if (ret != EOK) { + talloc_free(ctx); + } + return ret; +} + int sss_process_init(TALLOC_CTX *mem_ctx, struct tevent_context *ev, struct confdb_ctx *cdb, @@ -539,6 +595,12 @@ int sss_process_init(TALLOC_CTX *mem_ctx, return ret; } + ret = sss_names_init(rctx); + if (ret != EOK) { + DEBUG(0, ("fatal error initializing regex data\n")); + return ret; + } + /* after all initializations we are ready to listen on our socket */ ret = set_unix_socket(rctx); if (ret != EOK) { @@ -553,33 +615,55 @@ int sss_process_init(TALLOC_CTX *mem_ctx, } int sss_parse_name(TALLOC_CTX *memctx, - const char *fullname, - struct btreemap *domain_map, - const char **domain, const char **name) { - char *delim; - struct btreemap *node; - int ret; + struct sss_names_ctx *snctx, + const char *orig, char **domain, char **name) +{ + pcre *re = snctx->re; + const char *result; + int ovec[30]; + int origlen; + int ret, strnum; - if ((delim = strchr(fullname, SSS_DOMAIN_DELIM)) != NULL) { - - /* Check for registered domain */ - ret = btreemap_search_key(domain_map, (void *)(delim+1), &node); - if (ret != BTREEMAP_FOUND) { - /* No such domain was registered. Return EINVAL. - * TODO: alternative approach? - * Alternatively, we could simply fail down to - * below, treating the entire construct as the - * full name if the domain is unspecified. - */ - return EINVAL; - } + origlen = strlen(orig); + + ret = pcre_exec(re, NULL, orig, origlen, 0, PCRE_NOTEMPTY, ovec, 30); + if (ret < 0) { + DEBUG(2, ("PCRE Matching error, %d\n", ret)); + return EINVAL; + } - *name = talloc_strndup(memctx, fullname, delim-fullname); - *domain = talloc_strdup(memctx, delim+1); + if (ret == 0) { + DEBUG(1, ("Too many matches, the pattern is invalid.\n")); } - else { - *name = talloc_strdup(memctx, fullname); + + strnum = ret; + + result = NULL; + ret = pcre_get_named_substring(re, orig, ovec, strnum, "name", &result); + if (ret < 0 || !result) { + DEBUG(2, ("Name not found!\n")); + return EINVAL; + } + *name = talloc_strdup(memctx, result); + pcre_free_substring(result); + if (!*name) return ENOMEM; + + + result = NULL; + ret = pcre_get_named_substring(re, orig, ovec, strnum, "domain", &result); + if (ret < 0 || !result) { + DEBUG(4, ("Domain not provided!\n")); *domain = NULL; + } else { + /* ignore "" string */ + if (*result) { + *domain = talloc_strdup(memctx, result); + pcre_free_substring(result); + if (!*domain) return ENOMEM; + } else { + pcre_free_substring(result); + *domain = NULL; + } } return EOK; diff --git a/server/responder/common/responder_common.h b/server/responder/common/responder_common.h deleted file mode 100644 index 8a7af08a..00000000 --- a/server/responder/common/responder_common.h +++ /dev/null @@ -1,26 +0,0 @@ -#include "config.h" -#include "sbus/sssd_dbus.h" -#include "responder/common/responder_cmd.h" -#include "util/btreemap.h" - -/* SSS_DOMAIN_DELIM can be specified in config.h */ -#ifndef SSS_DOMAIN_DELIM -#define SSS_DOMAIN_DELIM '@' -#endif - - -int sss_process_init(TALLOC_CTX *mem_ctx, - struct tevent_context *ev, - struct confdb_ctx *cdb, - struct sbus_method sss_sbus_methods[], - struct sss_cmd_table sss_cmds[], - const char *sss_pipe_name, - const char *sss_priv_pipe_name, - const char *confdb_service_path, - struct sbus_method dp_methods[], - struct resp_ctx **responder_ctx); - -int sss_parse_name(TALLOC_CTX *memctx, - const char *fullname, - struct btreemap *domain_map, - const char **domain, const char **name); diff --git a/server/responder/common/responder_dp.c b/server/responder/common/responder_dp.c index 937b48dc..7fc7e0b3 100644 --- a/server/responder/common/responder_dp.c +++ b/server/responder/common/responder_dp.c @@ -3,7 +3,7 @@ #include #include "util/util.h" #include "responder/common/responder_packet.h" -#include "responder/common/responder_common.h" +#include "responder/common/responder.h" #include "providers/data_provider.h" #include "sbus/sbus_client.h" #include "providers/dp_sbus.h" diff --git a/server/responder/common/responder_dp.h b/server/responder/common/responder_dp.h deleted file mode 100644 index 528490fc..00000000 --- a/server/responder/common/responder_dp.h +++ /dev/null @@ -1,3 +0,0 @@ -#include "sbus/sssd_dbus.h" - -int sss_dp_init(struct resp_ctx *rctx, struct sbus_method dp_methods[]); diff --git a/server/responder/nss/nsssrv.c b/server/responder/nss/nsssrv.c index 4f9713b1..834c42d9 100644 --- a/server/responder/nss/nsssrv.c +++ b/server/responder/nss/nsssrv.c @@ -123,7 +123,7 @@ static int nss_get_config(struct nss_ctx *nctx, struct confdb_ctx *cdb) { TALLOC_CTX *tmpctx; - const char *domain, *name; + char *domain, *name; const char **domains; char **filter_list; int ret, num, i, j; @@ -150,8 +150,8 @@ static int nss_get_config(struct nss_ctx *nctx, "filterUsers", &filter_list); if (ret != EOK) goto done; for (i = 0; filter_list[i]; i++) { - ret = nss_parse_name(tmpctx, nctx, filter_list[i], - &domain, &name); + ret = sss_parse_name(tmpctx, nctx->rctx->names, + filter_list[i], &domain, &name); if (ret != EOK) { DEBUG(1, ("Invalid name in filterUsers list: [%s] (%d)\n", filter_list[i], ret)); @@ -192,8 +192,8 @@ static int nss_get_config(struct nss_ctx *nctx, "filterGroups", &filter_list); if (ret != EOK) goto done; for (i = 0; filter_list[i]; i++) { - ret = nss_parse_name(tmpctx, nctx, filter_list[i], - &domain, &name); + ret = sss_parse_name(tmpctx, nctx->rctx->names, + filter_list[i], &domain, &name); if (ret != EOK) { DEBUG(1, ("Invalid name in filterGroups list: [%s] (%d)\n", filter_list[i], ret)); @@ -235,22 +235,6 @@ done: return ret; } -static void *nss_pcre_malloc(size_t size) -{ - return talloc_named_const(NULL, size, "nss_pcre_malloc"); -} - -static void nss_pcre_free(void *ctx) -{ - talloc_free(ctx); -} - -void nss_pcre_setup(void) -{ - pcre_malloc = nss_pcre_malloc; - pcre_free = nss_pcre_free; -} - int nss_process_init(TALLOC_CTX *mem_ctx, struct tevent_context *ev, struct confdb_ctx *cdb) @@ -260,8 +244,6 @@ int nss_process_init(TALLOC_CTX *mem_ctx, struct nss_ctx *nctx; int ret; - nss_pcre_setup(); - nctx = talloc_zero(mem_ctx, struct nss_ctx); if (!nctx) { DEBUG(0, ("fatal error initializing nss_ctx\n")); diff --git a/server/responder/nss/nsssrv.h b/server/responder/nss/nsssrv.h index 093f795b..37d3735d 100644 --- a/server/responder/nss/nsssrv.h +++ b/server/responder/nss/nsssrv.h @@ -32,20 +32,14 @@ #include "dbus/dbus.h" #include "sbus/sssd_dbus.h" #include "responder/common/responder_packet.h" -#include "responder/common/responder_cmd.h" +#include "responder/common/responder.h" #include "responder/nss/nsssrv_nc.h" -#include #define NSS_SBUS_SERVICE_VERSION 0x0001 #define NSS_SBUS_SERVICE_NAME "nss" #define NSS_PACKET_MAX_RECV_SIZE 1024 -/* NSS_DOMAIN_DELIM can be specified in config.h */ -#ifndef NSS_DOMAIN_DELIM -#define NSS_DOMAIN_DELIM '@' -#endif - #define NSS_ENUM_USERS 0x01 #define NSS_ENUM_GROUPS 0x02 #define NSS_ENUM_ALL 0x03 @@ -67,8 +61,6 @@ struct nss_ctx { struct getent_ctx *pctx; struct getent_ctx *gctx; - - pcre *parse_name_re; }; struct nss_packet; diff --git a/server/responder/nss/nsssrv_cmd.c b/server/responder/nss/nsssrv_cmd.c index 26c51fac..d090b9d1 100644 --- a/server/responder/nss/nsssrv_cmd.c +++ b/server/responder/nss/nsssrv_cmd.c @@ -27,7 +27,7 @@ struct nss_cmd_ctx { struct cli_ctx *cctx; - const char *name; + char *name; uint32_t id; bool immediate; @@ -79,77 +79,6 @@ static int nss_cmd_send_error(struct nss_cmd_ctx *cmdctx, int err) return; \ } while(0) -int nss_parse_name(TALLOC_CTX *memctx, - struct nss_ctx *nctx, - const char *origname, - const char **domain, const char **name) -{ - pcre *re = nctx->parse_name_re; - const char *errstr; - const char *pattern = "(?[^@]+)@?(?[^@]*$)"; - const char *result; - int options; - int errpos; - int errval; - int ovec[30]; - int origlen; - int ret, strnum; - - options = PCRE_DUPNAMES | PCRE_EXTENDED; - - if (!re) { - re = pcre_compile2(pattern, options, &errval, &errstr, &errpos, NULL); - if (!re) { - DEBUG(1, ("Invalid Regular Expression pattern at position %d. (%d [%s])\n", - errpos, errstr)); - return EFAULT; - } - } - nctx->parse_name_re = re; - - origlen = strlen(origname); - options = PCRE_NOTEMPTY; - - ret = pcre_exec(re, NULL, origname, origlen, 0, options, ovec, 30); - if (ret < 0) { - DEBUG(2, ("PCRE Matching error, %d\n", ret)); - return EINVAL; - } - - if (ret == 0) { - DEBUG(1, ("Too many matches, the pattern is invalid.\n")); - } - - strnum = ret; - - result = NULL; - ret = pcre_get_named_substring(re, origname, ovec, strnum, "name", &result); - if (ret < 0 || !result) { - DEBUG(2, ("Name not found!\n")); - return EINVAL; - } - *name = talloc_steal(memctx, result); - if (!*name) return ENOMEM; - - - result = NULL; - ret = pcre_get_named_substring(re, origname, ovec, strnum, "domain", &result); - if (ret < 0 || !result) { - DEBUG(4, ("Domain not provided!\n")); - *domain = NULL; - } else { - /* ignore "" string */ - if (*result) { - *domain = talloc_steal(memctx, result); - if (!*domain) return ENOMEM; - } else { - *domain = NULL; - } - } - - return EOK; -} - static int nss_dom_ctx_init(struct nss_dom_ctx *dctx, struct btreemap *domain_map, const char *domain) { @@ -189,12 +118,14 @@ static int fill_pwent(struct sss_packet *packet, size_t rsize, rp, blen; size_t s1, s2, s3, s4; size_t dom_len = 0; - int i, ret, num; + int delim = 1; + int i, ret, num, t; bool add_domain = info->fqnames; const char *domain = info->name; + const char *namefmt = nctx->rctx->names->fq_fmt; int ncret; - if (add_domain) dom_len = strlen(domain) +1; + if (add_domain) dom_len = strlen(domain); /* first 2 fields (len and reserved), filled up later */ ret = sss_packet_grow(packet, 2*sizeof(uint32_t)); @@ -245,8 +176,9 @@ static int fill_pwent(struct sss_packet *packet, s2 = strlen(gecos) + 1; s3 = strlen(homedir) + 1; s4 = strlen(shell) + 1; + if (add_domain) s1 += delim + dom_len; + rsize = 2*sizeof(uint32_t) +s1 + 2 + s2 + s3 +s4; - if (add_domain) rsize += dom_len; ret = sss_packet_grow(packet, rsize); if (ret != EOK) { @@ -258,13 +190,35 @@ static int fill_pwent(struct sss_packet *packet, ((uint32_t *)(&body[rp]))[0] = uid; ((uint32_t *)(&body[rp]))[1] = gid; rp += 2*sizeof(uint32_t); - memcpy(&body[rp], name, s1); - rp += s1; + if (add_domain) { - body[rp-1] = NSS_DOMAIN_DELIM; - memcpy(&body[rp], domain, dom_len); - rp += dom_len; + ret = snprintf(&body[rp], s1, namefmt, name, domain); + if (ret >= s1) { + /* need more space, got creative with the print format ? */ + t = ret - s1 + 1; + ret = sss_packet_grow(packet, t); + if (ret != EOK) { + num = 0; + goto done; + } + delim += t; + s1 += t; + sss_packet_get_body(packet, &body, &blen); + + /* retry */ + ret = snprintf(&body[rp], s1, namefmt, name, domain); + } + + if (ret != s1-1) { + DEBUG(1, ("Failed to generate a fully qualified name for user " + "[%s] in [%s]! Skipping user.\n", name, domain)); + continue; + } + } else { + memcpy(&body[rp], name, s1); } + rp += s1; + memcpy(&body[rp], "x", 2); rp += 2; memcpy(&body[rp], gecos, s2); @@ -493,8 +447,8 @@ static int nss_cmd_getpwnam(struct cli_ctx *cctx) struct sss_domain_info *info; struct nss_ctx *nctx; const char **domains; - const char *domname; const char *rawname; + char *domname; uint8_t *body; size_t blen; int ret, num, i; @@ -519,7 +473,7 @@ static int nss_cmd_getpwnam(struct cli_ctx *cctx) rawname = (const char *)body; domname = NULL; - ret = nss_parse_name(cmdctx, nctx, rawname, + ret = sss_parse_name(cmdctx, cctx->rctx->names, rawname, &domname, &cmdctx->name); if (ret != EOK) { DEBUG(2, ("Invalid name received [%s]\n", rawname)); @@ -1332,16 +1286,18 @@ static int fill_grent(struct sss_packet *packet, const char *name; uint32_t gid, uid; size_t rsize, rp, blen, mnump; - int i, j, n, ret, num, memnum; + int i, j, n, t, ret, num, memnum; bool get_members; bool skip_members; size_t dom_len = 0; size_t name_len; + int delim = 1; bool add_domain = info->fqnames; const char *domain = info->name; + const char *namefmt = nctx->rctx->names->fq_fmt; int ncret; - if (add_domain) dom_len = strlen(domain) +1; + if (add_domain) dom_len = strlen(domain); /* first 2 fields (len and reserved), filled up later */ ret = sss_packet_grow(packet, 2*sizeof(uint32_t)); @@ -1396,11 +1352,15 @@ static int fill_grent(struct sss_packet *packet, } /* fill in gid and name and set pointer for number of members */ - name_len = strlen(name)+1; - rsize = 2 * sizeof(uint32_t) + name_len +2; - if (add_domain) rsize += dom_len; + name_len = strlen(name) + 1; + if (add_domain) name_len += delim + dom_len; + rsize = 2 * sizeof(uint32_t) + name_len + 2; ret = sss_packet_grow(packet, rsize); + if (ret != EOK) { + num = 0; + goto done; + } sss_packet_get_body(packet, &body, &blen); /* 0-3: 64bit number gid */ @@ -1414,13 +1374,34 @@ static int fill_grent(struct sss_packet *packet, rp += sizeof(uint32_t); /* 8-X: sequence of strings (name, passwd, mem..) */ - memcpy(&body[rp], name, name_len); - rp += name_len; if (add_domain) { - body[rp-1] = NSS_DOMAIN_DELIM; - memcpy(&body[rp], domain, dom_len); - rp += dom_len; + ret = snprintf(&body[rp], name_len, namefmt, name, domain); + if (ret >= name_len) { + /* need more space, got creative with the print format ? */ + t = ret - name_len + 1; + ret = sss_packet_grow(packet, t); + if (ret != EOK) { + num = 0; + goto done; + } + delim += t; + name_len += t; + sss_packet_get_body(packet, &body, &blen); + + /* retry */ + ret = snprintf(&body[rp], name_len, namefmt, name, domain); + } + + if (ret != name_len-1) { + DEBUG(1, ("Failed to generate a fully qualified name for user " + "[%s] in [%s]! Skipping user.\n", name, domain)); + continue; + } + } else { + memcpy(&body[rp], name, name_len); } + rp += name_len; + body[rp] = 'x'; /* group passwd field */ body[rp+1] = '\0'; @@ -1435,20 +1416,21 @@ static int fill_grent(struct sss_packet *packet, n = 0; for (j = 0; j < memnum; j++) { + name = (char *)el->values[j].data; + ncret = nss_ncache_check_user(nctx->ncache, - nctx->neg_timeout, domain, - (char *)el->values[j].data); + nctx->neg_timeout, + domain, name); if (ncret == EEXIST) { DEBUG(4, ("User [%s@%s] filtered out! (negative cache)\n", name, domain)); continue; } - rsize = el->values[j].length + 1; - if (add_domain) { - name_len = rsize; - rsize += dom_len; - } + name_len = el->values[j].length + 1; + if (add_domain) name_len += delim + dom_len; + + rsize = name_len; ret = sss_packet_grow(packet, rsize); if (ret != EOK) { num = 0; @@ -1457,12 +1439,34 @@ static int fill_grent(struct sss_packet *packet, sss_packet_get_body(packet, &body, &blen); rp = blen - rsize; - memcpy(&body[rp], el->values[j].data, el->values[j].length); + if (add_domain) { - rp += name_len; - body[rp-1] = NSS_DOMAIN_DELIM; - memcpy(&body[rp], domain, dom_len); + ret = snprintf(&body[rp], name_len, namefmt, name, domain); + if (ret >= name_len) { + /* need more space, got creative with the print format ? */ + t = ret - name_len + 1; + ret = sss_packet_grow(packet, t); + if (ret != EOK) { + num = 0; + goto done; + } + delim += t; + name_len += t; + sss_packet_get_body(packet, &body, &blen); + + /* retry */ + ret = snprintf(&body[rp], name_len, namefmt, name, domain); + } + + if (ret != name_len-1) { + DEBUG(1, ("Failed to generate a fully qualified name for user " + "[%s] in [%s]! Skipping user.\n", name, domain)); + continue; + } + } else { + memcpy(&body[rp], name, name_len); } + rp += name_len; body[blen-1] = '\0'; n++; @@ -1514,12 +1518,10 @@ static int fill_grent(struct sss_packet *packet, continue; } - rsize = strlen(name) + 1; - if (add_domain) { - name_len = rsize; - rsize += dom_len; - } + name_len = strlen(name) + 1; + if (add_domain) name_len += delim + dom_len; + rsize = name_len; ret = sss_packet_grow(packet, rsize); if (ret != EOK) { num = 0; @@ -1527,13 +1529,34 @@ static int fill_grent(struct sss_packet *packet, } sss_packet_get_body(packet, &body, &blen); rp = blen - rsize; - memcpy(&body[rp], name, rsize); + if (add_domain) { - body[rp-1] = NSS_DOMAIN_DELIM; - memcpy(&body[rp], domain, dom_len); - rp += dom_len; - } + ret = snprintf(&body[rp], name_len, namefmt, name, domain); + if (ret >= name_len) { + /* need more space, got creative with the print format ? */ + t = ret - name_len + 1; + ret = sss_packet_grow(packet, t); + if (ret != EOK) { + num = 0; + goto done; + } + delim += t; + name_len += t; + sss_packet_get_body(packet, &body, &blen); + + /* retry */ + ret = snprintf(&body[rp], name_len, namefmt, name, domain); + } + if (ret != name_len-1) { + DEBUG(1, ("Failed to generate a fully qualified name for user " + "[%s] in [%s]! Skipping user.\n", name, domain)); + continue; + } + } else { + memcpy(&body[rp], name, name_len); + } + rp += name_len; memnum++; continue; @@ -1752,8 +1775,8 @@ static int nss_cmd_getgrnam(struct cli_ctx *cctx) struct sss_domain_info *info; struct nss_ctx *nctx; const char **domains; - const char *domname; const char *rawname; + char *domname; uint8_t *body; size_t blen; int ret, num, i; @@ -1777,7 +1800,7 @@ static int nss_cmd_getgrnam(struct cli_ctx *cctx) rawname = (const char *)body; domname = NULL; - ret = nss_parse_name(cmdctx, nctx, rawname, + ret = sss_parse_name(cmdctx, cctx->rctx->names, rawname, &domname, &cmdctx->name); if (ret != EOK) { DEBUG(2, ("Invalid name received [%s]\n", rawname)); @@ -2844,8 +2867,8 @@ static int nss_cmd_initgroups(struct cli_ctx *cctx) struct sss_domain_info *info; struct nss_ctx *nctx; const char **domains; - const char *domname; const char *rawname; + char *domname; uint8_t *body; size_t blen; int ret, num, i; @@ -2869,7 +2892,7 @@ static int nss_cmd_initgroups(struct cli_ctx *cctx) rawname = (const char *)body; domname = NULL; - ret = nss_parse_name(cmdctx, nctx, rawname, + ret = sss_parse_name(cmdctx, cctx->rctx->names, rawname, &domname, &cmdctx->name); if (ret != EOK) { DEBUG(2, ("Invalid name received [%s]\n", rawname)); diff --git a/server/responder/pam/pamsrv.c b/server/responder/pam/pamsrv.c index d653a008..2f74a4ac 100644 --- a/server/responder/pam/pamsrv.c +++ b/server/responder/pam/pamsrv.c @@ -37,8 +37,6 @@ #include "sbus/sssd_dbus.h" #include "util/btreemap.h" #include "responder/common/responder_packet.h" -#include "responder/common/responder_cmd.h" -#include "responder/common/responder_common.h" #include "providers/data_provider.h" #include "monitor/monitor_sbus.h" #include "monitor/monitor_interfaces.h" diff --git a/server/responder/pam/pamsrv.h b/server/responder/pam/pamsrv.h index ac29cb16..077b495d 100644 --- a/server/responder/pam/pamsrv.h +++ b/server/responder/pam/pamsrv.h @@ -4,7 +4,7 @@ #include "util/util.h" #include "sbus/sssd_dbus.h" -#include "responder/common/responder_cmd.h" +#include "responder/common/responder.h" #define PAM_DP_TIMEOUT 5000 diff --git a/server/responder/pam/pamsrv_cmd.c b/server/responder/pam/pamsrv_cmd.c index 69f198c6..8f74e96f 100644 --- a/server/responder/pam/pamsrv_cmd.c +++ b/server/responder/pam/pamsrv_cmd.c @@ -4,55 +4,55 @@ #include "util/util.h" #include "confdb/confdb.h" #include "responder/pam/pam_LOCAL_domain.h" -#include "responder/common/responder_common.h" -#include "responder/common/responder_cmd.h" -#include "responder/common/responder_packet.h" #include "responder/pam/pamsrv.h" -static int pam_parse_in_data(uint8_t *body, size_t blen, struct pam_data *pd) { +static int pam_parse_in_data(struct sss_names_ctx *snctx, + struct pam_data *pd, + uint8_t *body, size_t blen) +{ int start; int end; - int last=blen-1; - char *delim; + int last; + int ret; - start = end = 0; - while ( end < last && body[end++]!='\0'); - pd->user = (char *) &body[start]; + last = blen - 1; + end = 0; - delim = strchr(pd->user, SSS_DOMAIN_DELIM); - if (delim != NULL ) { - *delim = '\0'; - pd->domain = delim+1; - } else { - pd->domain = NULL; - } + /* user name */ + for (start = end; end < last; end++) if (body[end] == '\0') break; + if (body[end++] != '\0') return EINVAL; - start = end; - while ( end < last && body[end++]!='\0'); + ret = sss_parse_name(pd, snctx, &body[start], &pd->domain, &pd->user); + if (ret != EOK) return ret; + + for (start = end; end < last; end++) if (body[end] == '\0') break; + if (body[end++] != '\0') return EINVAL; pd->service = (char *) &body[start]; - start = end; - while ( end < last && body[end++]!='\0'); + for (start = end; end < last; end++) if (body[end] == '\0') break; + if (body[end++] != '\0') return EINVAL; pd->tty = (char *) &body[start]; - start = end; - while ( end < last && body[end++]!='\0'); + for (start = end; end < last; end++) if (body[end] == '\0') break; + if (body[end++] != '\0') return EINVAL; pd->ruser = (char *) &body[start]; - start = end; - while ( end < last && body[end++]!='\0'); + for (start = end; end < last; end++) if (body[end] == '\0') break; + if (body[end++] != '\0') return EINVAL; pd->rhost = (char *) &body[start]; start = end; pd->authtok_type = (int) body[start]; + start += sizeof(uint32_t); pd->authtok_size = (int) body[start]; + start += sizeof(uint32_t); - end = start+pd->authtok_size; - if ( pd->authtok_size == 0 ) { + end = start + pd->authtok_size; + if (pd->authtok_size == 0) { pd->authtok = NULL; } else { - if ( end <= blen ) { + if (end <= blen) { pd->authtok = (uint8_t *) &body[start]; } else { DEBUG(1, ("Invalid authtok size: %d\n", pd->authtok_size)); @@ -62,14 +62,17 @@ static int pam_parse_in_data(uint8_t *body, size_t blen, struct pam_data *pd) { start = end; pd->newauthtok_type = (int) body[start]; + start += sizeof(uint32_t); pd->newauthtok_size = (int) body[start]; + start += sizeof(uint32_t); - end = start+pd->newauthtok_size; - if ( pd->newauthtok_size == 0 ) { + end = start + pd->newauthtok_size; + + if (pd->newauthtok_size == 0) { pd->newauthtok = NULL; } else { - if ( end <= blen ) { + if (end <= blen) { pd->newauthtok = (uint8_t *) &body[start]; } else { DEBUG(1, ("Invalid newauthtok size: %d\n", pd->newauthtok_size)); @@ -213,7 +216,7 @@ static int pam_forwarder(struct cli_ctx *cctx, int pam_cmd) pd->cmd = pam_cmd; pd->cctx = cctx; - ret=pam_parse_in_data(body, blen, pd); + ret=pam_parse_in_data(cctx->rctx->names, pd, body, blen); if( ret != 0 ) { talloc_free(pd); return EINVAL; -- cgit